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HN678G4S1
Repair Instructions
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BSH HN678G4S1 Repair Instructions

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Repair Instructions – Cooking
1 Concerning this document 4
1.1 Important information......................................................................................4
1.2 Explanation of symbols...................................................................................4
2 Safety 6
2.1 Qualification.................................................................................................... 6
2.2 General safety information............................................................................. 6
2.3 Product-specific safety information.................................................................7
2.4 Measures after each repair............................................................................ 8
3 Design and function 9
3.2 Meat temperature probe (NTC).................................................................... 13
3.3 Brushless direct current motor..................................................................... 14
3.4 Steam generation......................................................................................... 17
3.5 Steam generator........................................................................................... 18
3.6 Double pump................................................................................................ 20
3.7 EcoClean Direct............................................................................................21
3.9 Cooking compartment temperature sensor (Pt500 / Pt1000)....................... 25
3.10 Fold-down door.............................................................................................26
3.11 Magnetron..................................................................................................... 27
3.12 Swivelling panel............................................................................................ 29
3.13 Temperature regulation in the various operating modes.............................. 30
3.14 Temperature regulation in the various operating modes.............................. 35
3.15 Vapour extraction system............................................................................. 40
4 Fault diagnosis 43
4.1 Result faults................................................................................................ 43
Food is not cooked.......................................................................................43
Food is heated too slowly............................................................................ 43
Cleaning action is inadequate...................................................................... 43
Pieces of dough form a skin........................................................................ 43
Food dries out.............................................................................................. 44
4.2 Malfunctions................................................................................................ 45
Rails - Sloping down at the back/askew...................................................... 45
Rails - Flashovers/discoloured marks.......................................................... 45
Rails - Flashovers between rail and enamelled baking tray......................... 45
Rails - Jam/become caught..........................................................................46
Rails - Uneven running after pyrolysis......................................................... 46
Baking tray/universal pan warped, bent, bounces ...................................... 46
Operating ring can be rotated easily / no change on the display................. 46
Operating ring does not respond / no display.............................................. 47
Operating ring is hard to turn / remains stuck in a specific position............. 47
Operation is not interrupted when the door is opened................................. 47
Display background white/display hard to read............................................47
Fault code is displayed.................................................................................47
Appliance does not generate any steam......................................................48
Appliance continues to heat although the setpoint temperature has been
attained......................................................................................................... 48
Brightness of microwave differs from that of the oven................................. 48
No microwave output / 8A fuse was blown.................................................. 49
Folding panel only opens partially................................................................49
Folding panel opens at an angle..................................................................49
Folding panel does not close automatically................................................. 49
Cooling fan overruns for too long.................................................................49
NeffLight in the "slide and hide" door flashes briefly.................................... 50
Reset during operation in main menu "MyProfile"........................................50
Door (fold-down door) opens during operation (only microwave
appliances)....................................................................................................50
Door (fold-down door) cannot be closed (only microwave appliances)........ 50
Door (fold-down door) does not open 90°....................................................51
Door (fold-down door) closing is displayed (only microwave appliances).....51
Clock gains > 1 minute every day................................................................51
Time - ist fast / slow..................................................................................... 51
Water escapes into the cooking compartment via the steam inlet................52
Remove water tank is displayed when the pyrolytic self-clean system is
started........................................................................................................... 52
Fill water tank is displayed although the tank is still full............................... 52
Increased water consumption when operating in “steaming” mode............. 53
4.3 Noise............................................................................................................ 54
Rails squeaking............................................................................................ 54
High-frequency whistling sound....................................................................54
Cooling fan motor makes a high-frequency noise........................................54
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Repair Instructions – Cooking
Cooling fan motor whistles at a high frequency at certain speeds............... 54
Cooling fan overrun too loud........................................................................ 54
4.4 Other faults (surface defects, cracks, breaks)........................................ 56
Rails discoloured after pyrolysis...................................................................56
Baking tray/universal pan do not fit on the rails........................................... 56
Control panel and/or door askew................................................................. 56
Difference in display colour/brightness.........................................................56
Difference in colour of microwave/oven turning handle................................56
Gap between panel and door varies............................................................ 57
Connecting sleeve of the cooking compartment seal is becoming frayed
...................................................................................................................... 57
4.5 Leaks............................................................................................................ 58
Steam escapes in the top right-hand corner................................................ 58
Water drips onto the floor/furniture (when the door is opened).................... 59
Vapour/condensation escapes......................................................................59
5 Test 60
5.1 Measure the distance between the front glass panel and the cabinet
cavity............................................................................................................. 60
5.2 Checking the alignment of the panel with the door...................................... 61
5.3 Checking the cooking sensor (Lambda sensor)........................................... 63
5.4 Check the ventilation of the appliance in the furniture................................. 64
5.5 Check the meat temperature probe (NTC)...................................................66
5.6 Checking the lighting in the cooking compartment.......................................69
5.7 Check the cooking compartment temperature sensor (PT1000)..................71
5.8 Check the cooking compartment temperature sensor (PT500)....................74
5.9 Checking condensation................................................................................ 77
5.10 Magnetron prüfen......................................................................................... 79
5.11 Measuring microwave output power.............................................................81
5.12 Checking that the cookware is suitable for microwave use..........................82
5.13 Neo-Inverter prüfen.......................................................................................83
5.14 Checking the position of the wall socket......................................................86
5.15 Checking the socket of the meat temperature sensor..................................87
5.16 Measuring the temperature of the operating surfaces for hot air at
220 °C........................................................................................................... 88
5.17 Measuring the temperature of the operating surfaces for pyrolysis level
3.................................................................................................................... 90
5.18 Measuring the temperature of the operating surfaces for grilling level 3...... 92
5.19 Measuring the temperature of the appliance surfaces for hot air at
200 °C........................................................................................................... 94
5.20 Measuring the temperature of the appliance surfaces for pyrolysis level
3.................................................................................................................... 97
5.21 Measuring the temperature of the furniture surfaces for hot air at
220 °C......................................................................................................... 100
5.22 Measuring the temperature of the furniture surfaces for pyrolysis with level
3.................................................................................................................. 102
5.23 Measuring the temperature in the cooking compartment for hot air at
200 °C......................................................................................................... 104
5.24 Measuring the temperature in the cooking compartment for pyrolysis level
1.................................................................................................................. 106
5.25 Check the heat-resistance of the fitted units.............................................. 108
5.26 Checking the vapour system...................................................................... 109
6 Repairs 111
6.2 Removing and installing the baking sensor module (Lambda module)...... 112
6.3 Removing and installing the fascia (swivelling panel)................................ 113
6.4 Installing and removing the control panel...................................................114
6.6 Removing and installing the steam generator............................................ 116
6.7 Removing and installing the steam generator............................................ 117
6.8 Flashing and coding................................................................................... 118
6.9 Removing and installing the interior light (roof)..........................................120
6.10 Install and remove cabinet upper section...................................................121
6.11 Installing and removing the cabinet back panel......................................... 122
6.12 Installing and removing the cabinet side panel (left)..................................123
6.13 Installing and removing the cabinet side panel (right)................................ 124
6.14 Remove and install the appliance.............................................................. 125
6.15 Removing and installing the hot-air fan......................................................126
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Repair Instructions – Cooking
6.16 Removing and installing interior and intermediate glass panels and
reflectors..................................................................................................... 128
6.17 Adjusting the fold-down door......................................................................131
6.18 Adjusting the fold-down door safety switch................................................ 139
6.19 Dismantling and assembling the fold-down door........................................145
6.20 Dismantling and assembling the fold-down door........................................148
6.21 Removing and installing the contact spring of the NeffLight...................... 152
6.22 Removing and installing the cooling fan motor.......................................... 154
6.23 Removing and installing the bearing of the guiding rod............................. 155
6.24 Removing and installing the power module............................................... 157
6.25 Removing and installing the magnetron..................................................... 158
6.26 Removing and installing the NEO inverter................................................. 159
6.27 Remove and connect the mains cable....................................................... 161
6.28 Removing and installing the deflector........................................................ 162
6.29 Removing and installing the PT500........................................................... 163
6.31 Removing and installing the slide+hide door..............................................166
6.32 Removing and installing the meat temperature probe socket.................... 168
6.33 Removing and installing the door’s guide bushing.....................................169
6.34 Removing and installing the door’s left-hand or right-hand plastic guide... 171
6.35 Emergency unlock the door....................................................................... 173
6.36 Removing and installing the door hinge..................................................... 174
6.37 Removing and installing the door hinge..................................................... 176
6.38 Removing and installing the door hinge..................................................... 177
6.39 Removing and installing the door’s swivel handle......................................178
6.40 Removing and installing the vapour valve..................................................180
6.41 Removing and installing the vapour valve motor....................................... 181
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Concerning this document
1.1 Important information
Read and observe chapter 2 "Safety" before performing any work!
1.1.1 Purpose
These repair instructions form the basis for a systematic and safety conscious procedure for the repair of domestic appliances.
These repair instructions include information about troubleshooting and repair.
1.1.2 Target group
These repair instructions are intended for persons who are familiar with equipment technology and were instructed by BSH or an authorised body:
• Service technicians for the repair of domestic appliances
• Pre-assemblers in the spare part stockroom when determining required spare
parts
• Call centre employees during order acceptance
1.1.3 Other applicable documents
The following documents include additional relevant repair information:
• General repair instructions
• Error codes and service programs
• Circuit diagrams
• Exploded drawings
• Parts lists
• Repair videos
1.2 Explanation of symbols
1.2.1 Danger levels
The warning levels consist of a symbol and a signal word. The signal word indicates the severity of the danger.
Warning level Meaning
Non-observance of the warning message will result in death or serious injuries.
Non-observance of the warning message could result in death or serious injuries.
Non-observance of the warning message could result in minor injuries.
Non-observance of the warning message could result in dam­age to property.
Table 1: Danger levels
1.2.2 Hazard symbols
Hazard symbols are symbolic representations which give an indication of the kind of danger.
The following hazard symbols are used in this document:
Hazard symbol Meaning
General warning message
Danger from electrical voltage
Risk of explosion
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Concerning this document
Hazard symbol Meaning
Danger of cuts
Danger of crushing
Danger from hot surfaces
Danger from strong magnetic field
Danger from non-ionizing radiation
Table 2: Hazard symbols
1.2.3 Structure of the warnings
Warnings in this document have a standardised appearance and a standardised structure.
Risk of electric shock due to live parts!
► Disconnect the appliance from the mains at least 60 seconds
before starting the work .
1.2.4 General symbols
The following general symbols are used in this document:
Gen. symbol Meaning
Identification of a special tip (text and/or graphic)
Identification of a key or button
Identification of a material number
Identification of a condition (if ..., then ...)
Identification of a simple tip (only text)
Table 3: General symbols
Type and source of danger!
Consequences of ignoring the warning.
► Actions to protect from danger.
The following example shows a warning that warns against electric shock due to live parts. The measure for avoiding the danger is mentioned.
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Safety
2.1 Qualification
In Germany, only qualified electricians trained by BSH or an authorised body may perform any repair work.
In other countries, only similarly trained qualified personnel is permitted to perform the repair work.
Appliances must only be repaired by persons that are qualified, approved and trained by BSH or an authorised body as instructed.
2.2 General safety information
2.2.1 All domestic appliances
Risk of electric shock due to live parts!
• Disconnect the appliance from the mains for at least 60 seconds before starting work.
• Do not touch the housing, components and cables.
• For tests on an energised system, use a residual current circuit breaker.
• Discharge high-voltage capacitors.
Risk of injury from sharp edges!
• Wear protective gloves.
Risk of injury when dealing with harmful substances!
• Observe the associated safety data sheet!
Risk to the appliance's safety / function!
• Only use original spare parts.
Risk of damage to electrostatically sensitive components (ESDs)!
• Before touching ESDs, use an electrostatic protection system (wristband with earth safe plug).
• Do not touch connections and conductor paths of the modules.
• Only transport ESDs in conductive materials or original packaging.
• Keep ESDs clear of electrostatically chargeable materials (i.e. plastic).
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Safety
2.3 Product-specific safety information
2.3.1 Microwave ovens
Risk of scalding due to explosive escape of liquids in case of delayed boiling!
• Before heating place a metal spoon in the liquid.
Health hazard due to non-ionising radiation!
• After any work on the appliance, check the tightness with leak rate measurement.
2.3.2 Induction appliances
Induction appliances fulfil the relevant regulations for safety and electromagnetic compatibility (EN 50366).
Danger to life due to magnetic fields!
• People with pacemakers should stay clear during repairs on an open appliance!
Health hazard due to magnetic fields!
• People with medical devices (for example insulin pump / hearing aid) should stay clear of the opened appliance!
2.3.4 Refrigerators and freezers
Risk of burns caused by refrigerants!
• Wear protective gloves and goggles.
Explosion hazard due to refrigerants!
• Do not solder pipe connections, only use Lokring connections.
• Do not press any electrical switches.
• Keep clear of thermal appliances.
• Extinguish / keep clear of open flames.
• Ensure that room is well ventilated.
2.3.5 Dryer with heat pump
Risk of burns caused by refrigerants!
• Wear protective gloves and goggles.
Explosion hazard due to refrigerants!
• Do not solder pipe connections, only use Lokring connections.
• Do not press any electrical switches.
• Keep clear of thermal appliances.
• Extinguish / keep clear of open flames.
• Ensure that room is well ventilated.
2.3.3 Gas appliances
Explosion hazard due to escaping gas!
• Cut off the gas supply before working on gas carrying connections.
• Check tightness following work on connections carrying gas.
• Only repair gas appliances with original parts that were tested and released for such use.
If you smell gas!
• Do not press any electrical switches.
• Extinguish / keep clear of open flames.
• Ensure that room is well ventilated.
• Close the gas isolating equipment.
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Safety
2.4 Measures after each repair
If the appliance is functional:
• Check according to VDE 0701 or country-specific regulations.
• Check external appearance, function and tightness.
• Document repair work, measured values and functional reliability.
If the appliance is not functional:
• Identify the appliance as “not functionally reliable”.
• Warn customers of commissioning and notify them in writing .
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Design and function
3.1 Baking sensor (Lambda sensor)
3.1.1 Structure
Fig. 2: Position of the baking sensor in the cooking compartment.
1 Baking sensor
The baking sensor is installed in the ceiling of the cooking compartment (rear right).
Fig. 1: Construction of the baking sensor
1 Protective tube 3 Seal 2 Sensor element 4 Contacts
The sensor element consists of zirconium dioxide ZrO2. It is surrounded by the protective tube. The protective tube allows the heated sensor element to be operated at the required operating temperature and prevents mechanical damage.
The air of the cooking compartment reaches the sensor element through holes in the protective tube.
The sensor element is composed of several layers in planar technology. The sensor heating is also integrated in these layers.
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Design and function
3.1.2 Function
Fig. 4: Relationship of oxygen to humidity
1 O2 - oxygen 2 Humidity
Fig. 3: Components of the earth's atmosphere
1 Ar - argon 3 O2 - oxygen
2 CO2 - carbon dioxide 4 N2 - nitrogen
The portion of oxygen in the earth's atmosphere (air) is about 21 %.
The baking sensor senses the oxygen content of the air in the cooking compartment.
Because the content of the oxygen and the humidity of the air are directly related to each other, the baking sensor also senses the humidity of the air indirectly.
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The humidity in the cooking compartment provides information on the progress of the cooking process.
During cooking, water vapour escapes from the food and increases the humidity in the cooking compartment. At the same time, the oxygen content of the air in the cooking compartment is reduced.
Design and function
3.1.3 Cooking with the baking sensor
• The operating mode works only for cooking on one level. Several baking trays would divide the cooking compartment into different areas and the humidity would no longer be distributed evenly.
• The door must not be opened during the cooking process. The inflow of fresh air would distort the measurement of the oxygen content, and thus of the humidity.
In the "Cooking with the baking sensor" mode, no weights, quantities or cooking times have to be entered. Thanks to the baking sensor, the electronics can control the processes in the cooking compartment accurately. A „toothpick test" is no longer required.
Fig. 5: Oxygen - humidity concentration
1 Oxygen concentration 2 Humidity concentration
When the oxygen content is at its lowest, the humidity in the cooking compartment is at its highest.
The cooking process is complete at this point. After a short post-baking time, the cooking process can be finished (red line) and the food can be removed from the cooking compartment.
Fig. 6: Humidity/time curve for types of baking and post-baking time
1 Six sponge cakes - 32 minutes 4 Ring cake - 67 minutes 2 Plaited loaf - 34 minutes 5 Cheesecake - 78 minutes 3 Linzer torte - 44 minutes
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Design and function
3.1.4 Calibrating the baking sensor
A new backing sensor electronic unit (Lambda module) that has not yet been calibrated is synchronized automatically with the baking sensor (Lambda sensor) that is connected.
For new appliances, this is done during the final test at the factory.
If the baking sensor module is replaced as part of a repair, automatic synchronization between the baking sensor module and the baking sensor will be performed the first time the mains voltage is applied.
If only the baking sensor was replaced as part of a repair, manual synchronization between the baking sensor module and the baking sensor must be performed in the service program.
The manual calibration is started in the (Lambda sensor calibration) service program.
Here the (Ipump) flow of the baking sensor is sensed and stored. During operation, this initial value is compared with the current Ipump flow. The result is displayed in % as (Probe service) in the (Lambda sensor test) service program.
Each calibration causes the previous (Probe service) value to be deleted.
Recalibration of an old sensor will again produce a (Probe service) value of 100 %.
Recalibration does not improve the accuracy of the measurement!
Information on the accuracy of the measurement is possible by the level of the baking sensor current.
See also the chapter "Testing the baking sensor (Lambda sensor)".
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Design and function
3.2 Meat temperature probe (NTC)
The meat temperature probe measures the temperature inside the meat (core temperature) during the cooking process.
When the core temperature reaches the target value (for example 85 °C) the electronics stops the cooking process.
The plug of the meat temperature probe is inserted in a connector socket on the left side of the cooking compartment.
The values measured by the meat temperature probe are evaluated by the control electronics.
In the meat temperature probe, one or more NTC resistors are used as temperature sensors.
Different meat temperature probes are used to measure the cooking temperature:
• Single-point meat temperature probe (with one NTC resistor)
• Multipoint meat temperature probe (with three NTC resistors)
Depending on their features, the appliances have two- or three-pole connector sockets for the meat temperature probe.
Two-pole connector sock-etThree-pole connector
socket
Single-point meat tem­perature probe
Multipoint meat tempera­ture probe
Table 4: Possible use of the meat temperature probes
Yes Yes
No Yes
3.2.1 Single-point meat temperature sensor
Fig. 7: Construction of the single-point meat temperature sensor
1 NTC sensor connector 4 NTC sensor 3 NTC sensor connector
3.2.2 Multipoint meat temperature probe
In the multipoint meat temperature probe, the position of the integrated resistors is marked by rings on the tip of the sensor.
If the meat temperature probe is positioned poorly in the meat, the multipoint meat temperature probe will measure more accurately than a single-point meat temperature probe.
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Fig. 8: Construction of the multipoint meat temperature probe
1 NTC sensor connector 4 NTC sensor 1 2 NTC sensor connector 5 NTC sensor 2 3 NTC sensor connector 6 NTC sensor 3
Design and function
3.3 Brushless direct current motor
A BrushLess Direct Current motor (= BLDC motor) is an Electronically Commutated motor (= EC motor).
3.3.1 Structure
In a BLDC motor there is no electrical contact for between the movable rotor and the fixed stator.
The movable rotor consists of permanent magnets. The fixed stator consists of coils that are controlled in sequence by the motor electronics. This creates a rotary field.
Power transistors, for example power MOSFETs (Metal Oxide Semiconductor Field
Effect Transistors) are used for this circuit.
3.3.2 Function and model variant
The motor is operated with direct current. Contrary to their name, the functional principle is not based on that of a direct current motor, but on that of a three-phase synchronous motor with excitation by means of a permanent magnet. The coils create a rotating magnetic field, which pulls the permanent magnets with it.
There are motors with at least two or with many coils. Depending on the number of the coils, the coils are controlled single-phase, two-phase or three-phase.
The efficiency is greater for three-phase controls than for single-phase controls. The torque is greater for twelve coils than for four.
Fig. 10: BLDC motor, 4-pole, single-phase, for appliances without pyrolytic self-
clean systems
Fig. 9: An external rotor motor assembly
1 Motor electronics 3 Magnets (rotor) 2 Coils (stator) 4 Motor housing (rotor)
A distinction is made between internal and external rotor motors. For internal rotor motors, the movable rotor with the magnets is on the inside and the fixed stator is on the outside. For external rotor motors, the movable rotor with the magnets is on the outside and the fixed stator is on the inside.
Internal rotor motors are more efficient than external ones, but external rotor motors have a higher torque than internal ones.
The motor electronics is made up of the power electronics and the control electronics. The motor electronics generates the voltage with which the individual coils are controlled.
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Fig. 11: BLDC motor, 12-pole, three-phase, for appliances with pyrolytic self-
clean systems
Design and function
3.3.3 Commutation
Commutation is the process in which a current flow passes from one path to another. There is natural and forced commutation.
Natural commutation is present if the feed voltage originates from an alternating current or three-phase mains and the current path switching occurs due to its polarity reversal.
Forced commutation is present if the feed voltage does not originate from an alternating current or three-phase mains and the current path switching occurs by means of a control.
EC motors use forced commutation.
Fig. 13: Basic curve showing the torque and (positive/negative) currents in
phases L1, L2 and L3, depending on the rotation angle 0° to 360° for a block commutation
Fig. 12: Basic circuit electronic commutation
red coil = north pole / green coil = south pole / grey coil = countervoltage
The big advantage of an EC motor is that the electronic commutation can be made dependent on the rotor position, rotor speed and torque. The electronic commutation thus becomes a controller. The way in which the rotary field is generated determines the characteristic of the EC motor.
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Fig. 14: Rotary field
red coil = north pole / green coil = south pole / grey coil = countervoltage
Design and function
There are different ways of measuring the rotor position and speed:
• Sensor-controlled commutation
- Hall or optical sensors are used to determine the position of the rotor. The advantage of the sensor-controlled commutation is that it also works for very low torques or when stationary.
• Sensorless commutation
- The countervoltage in the coils, analysed by the motor electronics, is used to determine the position of the rotor. A minimum rotational speed is required in order to analyse the countervoltage. For this reason, EC motors are switched idle until the minimum rotational speed is reached.
New procedures allow precise control even below the minimum speed by using targeted brief current pulses, which do not move the motor but are influenced by the rotor’s magnetic field.
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Design and function
3.4 Steam generation
Fig. 15: Overview of the components
1 Water tank in the housing 4 Steam generator 2 Water pump 5 Steam hose 3 Steam electronics
The water pump pumps the water from the water tank to the steam generator.
The water level in the steam generator is monitored by a water level sensor.
The steam electronics will switch the heater on if there is sufficient water in the steam generator.
The steam that is created flows through the steam hose into the interior of the cooking compartment.
The duration and amount of steam generation depends on the programme that is selected.
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Design and function
3.5 Steam generator
Fig. 16: Components of the steam generator
1 Water level sensor 5 Heater 2 Housing 6 Water connection 3 Steam outlet 7 Electrical connection 4 Seal 8 Support
The heater switches on and steam is generated until the boiling water no longer touches the water level sensor. Now the amount of water in the steam generator is approximately 60 ml.
The steam generator is refilled. This cycle continues as long as steam is required.
When the appliance is switched off, the steam generator is refilled to 120 ml. Water is then pumped out of the tank for approximately 50 seconds. This prevents the water pump from draining (noise reduction).
Finally the heater is switched on for 8 seconds to dry the steam generator.
3.5.2 Heater
3.5.1 Function of the steam generator
The steam generator generates steam, which is conducted to the cooking compartment.
The steam generator is filled with water via the water connection until the water reaches the water level sensor. Depending on the intended heat setting, the steam generator continues to be filled with water for an additional 3 to 12 seconds. Now the amount of water in the steam generator is approximately 120 ml.
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Fig. 17: Design of the heater
1 Thick-film heating element 4 High-temperature insulation layer 2 Low-temperature insulation layer 5 Stainless steel plate 3 E-Fast Temperature sensor
The mean operating temperature of the heating element is 170 °C.
Design and function
The heating element is switched off at 280 °C.
The maximum temperature of the heating element is 350 °C.
Fig. 18: Heater connections
1 Earth connection 4 Heater connection 800 W 2 E-Fast Temperature sensor connection 5 Neutral conductor connection 3 Heater connection 400 W 6 Water connection
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Design and function
3.6 Double pump
The double pump consists of two pumps that are mounted on a carrier on a low­vibration rubber bearing. The voltage supply is provided by a common connector socket.
Depending on which pump is being operated, the water is pumped from the water tank to the steam generator (filling) or from the steam generator to the water tank (draining).
3.6.1 Double pump in appliances without microwave.
3.6.2 Double pump in appliances with microwave
Fig. 20: Position and connections of the pump
1 Connection to the steam generator 2 Connection to the tank
Fig. 19: Position and connections for the pump
1 Connection to the tank 2 Connection to the steam generator
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Design and function
3.7 EcoClean Direct
EcoClean Direct is the name of a new process for cleaning the cooking compartment at Bosch, Siemens and Neff.
For this cleaning process, the enamelled interior walls and the ceiling of the cooking compartment are covered with an additional ceramic coating.
The ceramic coating is especially coarse and fined pored. The enlarged surface causes spraying fat and vapours to be distributed over a large area on and in the special ceramic (blotter effect).
Damage to the ceramic coating due to incorrect cleaning!
► Do not use oven spray, abrasive cleaning agents, tough brushes, scouring
sponges or steel wool soap pads to clean the ceramic coating.
► Use only a soft, damp sponge soaked in a little detergent to clean the
ceramic surface.
3.7.1 How it works
When food is heated, this produces spraying fat that comes into contact with the ceramic coating of the cooking compartment.
This spraying fat is absorbed by the fine-pored ceramic coating, which causes it to be surrounded by oxygen on all sides.
In connection with heat, the oxygen causes the spraying fat to oxidise. Water (steam) and carbon dioxide are generated as a result of the oxidation.
Fig. 21: Ceramic coating (magnified 216x)
The ceramic coating consists of ceramic microspheres in which oxygen is deposited. In connection with heat, the oxygen allows grease to oxidise and be
broken down into water (steam) and carbon dioxide (CO2).
The higher the temperature, the faster and better the cleaning effect.
Cleaning occurs during baking and roasting when temperatures greater than 200 °C are reached. This causes the ceramic coating to be regenerated and to remain active for the entire lifecycle of the appliance.
Normally, no additional cleaning cycle is necessary. Should an additional cleaning cycle be required as an exception due to special operating conditions, this will be indicated in the display. A cleaning programme can be started manually.
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This causes the ceramic micospheres to lose oxygen.
The next time they are heated, the ceramic microspheres are regenerated and are filled with oxygen again. The cycle can start from the beginning.
Design and function
3.8 Suitability of cookware
3.8.1 Paper and cardboard
Paper and cardboard may not be used in combined operation, as they may ignite in the process.
Paper and cardboard are suitable only for brief cooking or warming processes in pure microwave operation.
Plastic-coated paper or cardboard may not be used because the high temperature of the food would melt the plastic.
3.8.2 Glass, ceramics, stoneware and clay
Cookware made of these materials is generally suitable for microwave cooking. Unglazed clay surfaces are less good because they absorb water and therefore become extremely hot during microwave cooking.
There is also stoneware and clay cookware whose specific composition or specific glaze (for example, containing lead) means that it also becomes extremely hot. Such cookware should not be used because the glaze may become cracked.
You can determine the suitability of these materials by performing a “cookware test”.
3.8.3 Plastic
Some plastics will change their shape and may even melt. Plastic utensils made of melamine and Ornamin store microwave energy and become extremely hot. The cooking process therefore takes longer. Containers made of these materials are therefore not recommended. Plastic cookware is suitable for cooking provided it is heatproof up to 200 °C.
There are now special microwave utensils available on the market that are suitable for cooking, freezing, thawing and heating up.
Plastic that is stable only at low temperatures can easily become distorted in the microwave. Foods containing fats or sugars should not be heated too strongly in such containers.
3.8.4 Plastic film
Some deep frozen meals are sold in plastic bags for boiling in the bag. Such food should be thawed and warmed slowly and carefully, because heating them too rapidly could melt the plastic.
For best results, place the food in a serving dish and heat it in that. Baking foil without metal clips can also be used for microwave cooking.
Clingfilm is only partially suitable for covering containers. It is too thin and too easily distorted at high temperatures.
Microwave foil can be used to cover containers for heating and cooking moist foods. Avoid allowing them to come into contact with fatty foods, because fats can become extremely hot in the microwave.
Plastic containers are generally made of a variety of basic raw materials. For this reason they do not all react to microwave cooking in the same way.
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Design and function
3.8.5 Table of suitable cookware materials
Microwave only Conventional or conventional with microwave (combination) Notes
Cookware Defrosting Warming Cooking
Glass + + + + + + + Cookware that is
Porcelain + + + + + + + Follow the
Glass ceramic part
Ceramics (stoneware, clay)
Plastic cookware + + + (+) - (+) (+)
Clingfilm + + + - - - - Follow the
Freezer bags (boil-proof)
+ + + + + + + Follow the
+ + + + + + + Follow the
+ + + - - - - Follow the
Top and bottom heat
Grill Recirculating air Combination
With no grill
to be used with top and bottom heat, recirculating air, grill or combi­nations of these must be heat­proof. Follow the manufacturer’s in­structions
manufacturer’s in­structions.
manufacturer’s in­structions.
manufacturer’s in­structions.
Follow the manufacturer’s in­structions.
manufacturer’s in­structions.
manufacturer’s in­structions. Freez­er bags that can­not be boiled are suitable only for defrosting.
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Design and function
Microwave only Conventional or conventional with microwave (combination) Notes
Cookware Defrosting Warming Cooking
Oven bags + + + + - + +
Metal baking tins - - - + - + + Follow the
Metal cookware (flat baking dish­es)
Aluminium trays (+) (+) - + + + + Follow the
Paper and card­board
Explanation:
• + = suitable
• (+) = partially suitable
• - = not suitable
(+) (+) - + + + + Follow the
(+) (+) - - - - - May not be coat-
Top and bottom heat
Grill Recirculating air Combination
With no grill
Instead of us­ing metal clips, close the bag with string.
manufacturer’s in­structions.
manufacturer’s in­structions.
manufacturer’s in­structions.
ed with plastic.
Table 5: Overview
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Design and function
3.9 Cooking compartment temperature sensor (Pt500 / Pt1000)
The cooking compartment temperature sensor measures the temperature in the cooking compartment.
The electronics switches the cooking compartment heating elements on and off based on the desired cooking compartment temperature.
The cooking compartment temperature sensor is located in a pipe that is attached to the back wall of the cooking compartment and protrudes into the cooking compartment.
3.9.1 Structure
For protection, the platinum measuring resistance is in a standardised cabinet or protective tube.
Platinum measuring resistances are described according to their material (platinum = Pt) and nominal resistance R0 at a temperature of 0 °C.
• Pt500 (R0 = 500 Ω)
• Pt1000 (R0 = 1 kΩ)
3.9.2 Function
Platinum measuring resistances are PTC resistors with a Positive Temperature Coefficient = PTC.
A positive temperature coefficient means that the electrical resistance rises with increasing temperature.
Fig. 23: Function of the PTC
The PTC converts the temperature of the cooking compartment to electrical resistance.
Fig. 22: Components of the cooking compartment temperature sensor (Pt500 /
Pt1000)
1 Connector 3 Platinum resistor 2 Connecting cables 4 Protective tube
Cooking compartment temperature sensors are temperature sensors that use the dependence of the electrical resistance on the temperature in platinum as a measuring effect.
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The electronics evaluates the resistance of the PTC and actuate a switching process if the setpoint temperature of the cooking compartment is exceeded or drops below the minimum.
Design and function
3.10 Fold-down door
3.10.1 Overview of the fold-down door variants for appliances without microwave
Blue = glass and red = metal oxide coating
Appliance
with pyrolysis
4 Door panels 3 Door panels 3 Door panels 3 Door panels
2 Intermediate
glasses (coated)
Borosilicate
inner glass
Table 6: Design of the fold-down door variants for appliances without
microwave
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Appliance with-
out pyrolysis
1 Intermediate glass (coated)
Soda-lime
inner glass
Appliance with-
out slide handle
1 Intermediate glass (coated)
Soda-lime
inner glass
Appliance with-
out pyrolysis
with full steam
2 Intermediate
glasses (coated)
Soda-lime
inner glass
Design and function
3.11 Magnetron
3.11.1 Construction of the magnetron
The magnetron is an electron tube. To be more precise, it is a vacuum velocity­modulated tube used to generate electromagnetic waves in the microwave range.
The main components of the magnetron are the anode, cathode, permanent magnets, antenna and electrical connections.
The cathode is enclosed by a solid, cylinder-shaped anode block (usually made of copper). Frequency-determining cavity resonators are located on the inside of the anode block. These are usually radial slits that run parallel to the filament and which are open in the direction of the central hole of the anode block. The anode segments face from the anode to the cathode. Cooling fins on the outside of the anode block allow cooling by means of a fan.
The antenna is connected to an anode segment.
The insulating bushings for the cathode pole and antenna comprise insulating ceramic parts.
Fig. 25: Cross-section of anode
1 Anode 4 Anode segments 2 Cavity resonator 5 Antenna 3 Cathode
3.11.2 Function of the magnetron
The function of a magnetron can be traced back to that of an oscillating circuit.
Fig. 24: Construction of the magnetron
1 Anode 5 Antenna 2 Anode segments 6 Insulating bushes 3 Cathode (heated) 7 Reactance coil 4 Permanent magnets
The cathode is located in the centre of the magnetron. This is either an indirectly heated, cylindrical hot cathode or the filament itself (so-called directly heated cathode).
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Microwaves are generated by simultaneously applying two voltages to the poles.
• Approx. 3.3 V alternating current at the cathode connections (filaments)
• Approx. 4 kV as a positive wave of an alternating current at the anode connections
The high-frequency electromagnetic oscillations (microwaves) generated by the oscillating circuit (magnetron) are transmitted into the cooking compartment by the antenna and by means of a waveguide.
Design and function
Fig. 26: Magnetron voltage supply
1 Anode UHHeating voltage 3.3 V ~
2 Cathode (filament) UAAnode voltage 4 kV ~
Four conditions required for a magnetron to generate microwaves:
• There is a vacuum in the anode body
• The anode has earthing potential through the housing, meaning that the voltage is - 4 kV, and is therefore positive in relation to the earthing
• Approx. 4 kV positive alternating voltage at the anode
• Approx. 3.3 V at the cathode filament
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Design and function
3.12 Swivelling panel
3.12.1 Components of the swivelling panel
Fig. 27: Components of the swivelling panel
1 Swivel mechanism with limit switch 5 Tank and water level detection 2 Tank housing 6 Swivel motor 3 Water tank 7 Swivel motor limit switch 4 Limit switch for swivel mechanism
3.12.2 Swivelling panel function
3.12.3 Sensor module for detecting the tank and water level
Fig. 28: Sensor module for detecting the tank and water level
1 Sensor module 2 Tank housing
There are two variants of the sensor module that are calibrated differently:
• Variant 1 for appliances with fold-down door
• Variant 2 for appliances with Slide&Hide door
Using the wrong sensor module will result in malfunctions!
At the touch of a button, the swivelling panel is extended a little by a motor and a swivel mechanism. Next the swivelling panel must be pulled out and up manually until it locks in place.
The position of the swivelling panel is detected by limit switches.
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Design and function
3.13 Temperature regulation in the various
operating modes
• Appliance with a mounting height of 60 cm
• All sample curves for appliances with no microwave function
• In the event of complaints relating to results or temperatures, always perform temperature measurements in accordance with the guidelines and compile a measurement protocol
3.13.1 Temperature regulation
Two different methods are used to regulate the temperature in the cooking compartment:
• PID control
- EN = Proportional-Integral-Derivative Controller
- DE = Proportional-Integral-Differential Regler
- A PID controller is an extremely precise controller whose characteristics prevent it from deviating (by trying to reach the target value)
- This type of temperature regulation is used for operating modes that primarily need precise heat distribution (top/bottom heating, hot air, pizza, etc.)
• Two-point control
- Two-point control is a somewhat less precise method of temperature regulation. Two temperatures are defined, one for switching the elements on and one for switching them off. The average of the switch-on and switch-off temperatures determines the target temperature
- This type of temperature regulation is used for operating modes that primarily use radiant heat (all the various grilling modes). The heating element must glow in order to emit sufficient radiant heat.
The temperature in the cooking compartment is measured using an oven temperature sensor, (also called a PTC-resistor EN =
Positive-Temperatur-Coeffizient).
3.13.2 Top/bottom heating operating mode
• PID control (Page 30)
- Accuracy: ± 10 K
- Peak heat: up to 20 K (starting at room temperature)
- Heating element: outer circuit for top heating and bottom heating
• Special features and characteristics:
- Circulated air motor performs two 20 -second cycles during heating
- If the target temperature is > 275 °C, then after 40 minutes the temperature will be reduced to 275 °C
- Can be combined with microwave and also with steam
Fig. 29: Top/bottom heat, as an example the temperature range for a target
temperature of 200 °C
1 Top limit curve 3 Bottom limit curve 2 Set point curve
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Design and function
3.13.3 4D hot air / CircoTherm
• PID control (Page 30)
- Accuracy: ± 10 K
- Peak heat: up to 20 K (starting at room temperature)
- Heating element: Ring heating element
• Special features and characteristics:
- Circulated air motor changes rotation direction
- If the target temperature is > 275 °C, then after 40 minutes the temperature will be reduced to 275 °C
- Can be combined with microwave and also with steam
3.13.4 Pizza setting
• PID control (Page 30)
- Accuracy: ± 10 K
- Peak heat: up to 20 K (starting at room temperature)
- Heating element: Ring heating element and bottom heating
• Special features and characteristics:
- Circulated air motor changes rotation direction
- If the target temperature is > 275 °C, then after 40 minutes the temperature will be reduced to 275 °C
- No combinations are possible
Fig. 30: 4D hot air, as an example the temperature range for a target
temperature of 200 °C
1 Top limit curve 3 Bottom limit curve 2 Set point curve
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Fig. 31: Pizza setting, as an example the temperature range for a target
temperature of 200 °C
1 Top limit curve 3 Bottom limit curve 2 Set point curve
Design and function
3.13.5 Hot air grill
• Two-point control (Page 30)
- Accuracy: ± 10 K
- Peak heat: up to 30 K (starting at room temperature)
- Heating element: Outer/inner circuit for top heating
• Special features and characteristics:
- Circulated air motor runs from the start
- Circulated air motor changes its direction of rotation, but not until the target temperature is reached
- If the target temperature is > 275 °C, then after 40 minutes the temperature will be reduced to 275 °C
- Can be combined with microwave and added steam
3.13.6 Full-surface grill
• Two-point control (Page 30)
- Accuracy: irrelevant
- Peak heat: First peak after 10 minutes at level III
- Heating element: Outer/inner circuit for top heating
• Special features and characteristics:
- Radiant heat only (infrared)
- If the target temperature is > 275 °C, then after 40 minutes the temperature will be reduced to 275 °C
- Can be combined with microwave
- While heating up, only the outer circuit of the top heater is initially switched on 100 %, meanwhile the inner circuit pulses at 50 %. After about 5 minutes the inner circuit is fully switched on and the heating is adjusted
Fig. 32: Hot air grill, as an example the temperature range for a target
temperature of 200 °C
1 Top limit curve 3 Bottom limit curve 2 Set point curve
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Fig. 33: Full-surface grill, as an example the temperature range for level 2
1 Top limit curve 3 Bottom limit curve 2 Set point curve
Design and function
3.13.7 Bottom heating
• PID control (Page 30)
- Accuracy: ± 10 K
- Peak heat: up to 20 K (starting at room temperature)
- Heating element: Bottom heating
• Special features and characteristics:
- Circulated air motor performs two 20 -second cycles during heating
- Maximum target temperatures that can be set 250 °C
- No combinations are possible
Fig. 34: Bottom heat, as an example the temperature range for a target
temperature of 250 °C
1 Top limit curve 3 Bottom limit curve 2 Set point curve
3.13.8 Pyrolytic self-cleaning
• PID control (Page 30)
- Accuracy: 465 °C ± 10 K
- Peak heat: up to 25 K (starting at room temperature)
- Heating element: Outer/inner circuit for top heat and bottom heat
• Special features and characteristics:
- Expressing the pyrolysis duration as a “holding time” means that, after the target pyrolysis temperature is reached, that temperature is maintained for a specific period of time. Level I/II/III = 50 / 60 / 90 minutes holding time
- The maximum pyrolysis duration, i.e. the full cycle at level III, is 120 minutes
- The holding time begins during the heating phase as soon as a temperature of 440 °C is reached
- The air circulation motor is activated while the appliance is heating up and does not switch off again until the pyrolysis process has been completed
3.13.9 EasyClean
• Control / sequence of operations
- Accuracy: irrelevant
- Peak heat: irrelevant
- Heating element: Bottom heating
• Special features and characteristics:
- Only timer (control), no temperature control.
- Place 400 ml water containing washing-up liquid in the centre of the cooking compartment floor
- After the function is started, bottom heat is switched on for 5 minutes.
- After the bottom heat is switched off, the timer counts down a soaking time of 15 minutes
3.13.10 Rapid heat-up
Rapid heat-up uses two types of heating depending on which operating mode it is started from.
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Design and function
For hot air:
• PID control (Page 30)
- Accuracy: The appliance switches back to the operating mode from which the rapid heat-up function was started before the temperature reaches its target value
- Peak heat: As for hot air, this may be slightly higher for temperatures <150 °C
- Heating element: Top heat outer circuit ~90 % plus ring heating element
• Special features and characteristics:
- Temporary operating mode, not independent.
For conventional operating modes:
• PID control (Page 30)
- Accuracy: The appliance switches back to the operating mode from which the rapid heat-up function was started before the temperature reaches its target value
- Peak heat: As for conventional operation modes, this may be slightly higher for temperatures <150 °C
- Heating element: Bottom heating and ring heating element
• Special features and characteristics:
- Temporary operating mode, not independent
- On reaching 75 % of the selected target temperature the appliance switches from settings 1 to settings 2 (type of element control and circulated air motor)
3.13.11 coolStart
• PID control (Page 30)
- Accuracy: ±10 K
- Peak heat: Considerable temperature overshoot < 20 K - 30 K
- Heating element: Bottom heating and ring heating element, subsequently ring heating element
• Special features and characteristics:
- On reaching 90 % of the selected target temperature the appliance switches from settings 1 to settings 2 (type of element control and circulated air motor)
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Design and function
3.14 Temperature regulation in the various operating modes
• Appliance with a mounting height of 45 cm
• All sample curves for appliances with no microwave function
• In the event of complaints relating to results or temperatures, always perform temperature measurements in accordance with the guidelines and compile a measurement protocol
3.14.1 Temperature regulation
Two different methods are used to regulate the temperature in the cooking compartment:
• PID control
- EN = Proportional-Integral-Derivative Controller
- DE = Proportional-Integral-Differential Regler
- A PID control is an extremely precise controller whose characteristics prevent it from deviating (by trying to reach the target value).
- This type of temperature regulation is used for operating modes that primarily need precise heat distribution (top/bottom heating, hot air, pizza, etc.).
• Two-point control
- Two-point control is a somewhat less precise method of temperature regulation. Two temperatures are defined, one for switching the elements on and one for switching them off. The average of the switch-on and switch-off temperatures determines the target temperature.
- This type of temperature regulation is used for operating modes that primarily use radiant heat (all the various grilling modes). The heating element must glow in order to emit sufficient radiant heat.
The temperature in the cooking compartment is measured using a PTC-resistor as oven temperature sensor, (PTC-resistor EN = Positive-Temperatur-Coeffizient).
3.14.2 Top/bottom heating operating mode
• PID control (Page 35)
- Accuracy: ± 10 K
- Peak heat: up to 20 K (if starting at room temperature)
- Heating element: Outer (and inner circuit - depending on the type of appliance) top and bottom heat
• Special features and characteristics:
- Circulated air motor performs two 20 -second cycles during heating
- If the target temperature is > 275 °C, then after 40 minutes the temperature will be reduced to 275 °C
- Can be combined with microwave and also with steam
Fig. 35: Top/bottom heat, as an example the temperature range for a target
temperature of 200 °C
1 Curve top limit 3 Curve bottom limit 2 Curve setpoint
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Design and function
3.14.3 4D hot air / CircoTherm
• PID control (Page 35)
- Accuracy: ± 10 K
- Peak heat: up to 20 K (if starting at room temperature)
- Heating element: Ring heating element
• Special features and characteristics:
- Circulated air motor changes rotation direction
- If the target temperature is > 275 °C, then after 40 minutes the temperature will be reduced to 275 °C
- Can be combined with microwave and also with steam
3.14.4 Pizza setting
• PID control (Page 35)
- Accuracy: ± 10 K
- Peak heat: up to 20 K (if starting at room temperature)
- Heating element: Ring heating element and bottom heating
• Special features and characteristics:
- Circulated air motor changes rotation direction
- If the target temperature is > 275 °C, then after 40 minutes the temperature will be reduced to 275 °C
- No combinations are possible
Fig. 36: 4D hot air, as an example the temperature range for a target
temperature of 200 °C
1 Curve top limit 3 Curve bottom limit 2 Curve setpoint
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Fig. 37: Pizza setting, as an example the temperature range for a target
temperature of 200 °C
1 Curve top limit 3 Curve bottom limit 2 Curve setpoint
Design and function
3.14.5 Hot air grilling
• Two-point control (Page 35)
- Accuracy: ± 10 K
- Peak heat: up to 30 K (if starting at room temperature)
- Heating element: Outer/inner circuit for top heating
• Special features and characteristics:
- Circulated air motor runs from the start
- Circulated air motor changes its direction of rotation, but not until the target temperature is reached
- If the target temperature is > 275 °C, then after 40 minutes the temperature will be reduced to 275 °C
- Can be combined with microwave and added steam
- Amplitude up to 50 K possible (the lower the target temperature, the greater the amplitude)
3.14.6 Grill, large area
• Two-point control (Page 35)
- Accuracy: irrelevant
- Peak heat: First peak after 10 minutes at level III
- Heating element: Outer/inner circuit for top heating
• Special features and characteristics:
- Radiant heat only (infrared)
- If the target temperature is > 275 °C, then after 40 minutes the temperature will be reduced to 275 °C
- Can be combined with microwave
- While heating up, only the outer circuit of the top heater is initially switched on 100 %, meanwhile the inner circuit pulses at 50 %. After about 3 minutes the inner circuit is fully switched on and the heating is adjusted
Fig. 39: Full-surface grill, as an example the temperature range for level 2
Fig. 38: Hot air grilling, as an example the temperature range for a target
temperature of 200 °C
1 Curve top limit 3 Curve bottom limit 2 Curve setpoint
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1 Curve top limit 3 Curve bottom limit 2 Curve setpoint
Design and function
3.14.7 Bottom heating
• PID control (Page 35)
- Accuracy: ± 10 K
- Peak heat: up to 20 K (starting at room temperature)
- Heating element: Bottom heating
• Special features and characteristics:
- Circulated air motor performs two 20 -second cycles during heating
- Maximum target temperatures that can be set 250 °C
- No combinations are possible
Fig. 40: Bottom heat, as an example the temperature range for a target
temperature of 250 °C
1 Curve top limit 3 Curve bottom limit 2 Curve setpoint
3.14.8 Pyrolytic self-cleaning
• PID control (Page 35)
- Accuracy: 465 °C ± 10 K
- Peak heat: 25 K (if starting at room temperature)
- Heating element: Outer/inner circuit for top heat and bottom heat
• Special features and characteristics:
- Expressing the pyrolysis duration as a “holding time” means that, after the target pyrolysis temperature is reached, that temperature is maintained for a specific period of time. Level I/II/III = 50 / 60 / 90 minutes holding time
- The maximum pyrolysis duration, i.e. the full cycle at level III, is 120 minutes.
- The holding time begins during the heating phase as soon as a temperature of 440 °C is reached
- The air circulation motor is activated while the appliance is heating up and does not switch off again until the pyrolysis process has been completed
3.14.9 EasyClean
• Control / sequence of operations
- Accuracy: irrelevant
- Peak heat: irrelevant
- Heating element: Bottom heating
• Special features and characteristics:
- Only timer (control), no temperature control
- Place 400 ml water containing washing-up liquid in the centre of the cooking compartment floor
- After the function is started, bottom heat is switched on for 5 minutes.
- After the bottom heat is switched off, the timer counts down a soaking time of 15 minutes.
3.14.10 Rapid heat-up
Rapid heat-up uses two types of heating depending on which operating mode it is started from.
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Design and function
For hot air:
• PID control (Page 35)
- Accuracy: The appliance switches back to the operating mode from which the rapid heat-up function was started before the temperature reaches its target value
- Peak heat: As for hot air, this may be slightly higher for temperatures <150 °C
- Heating element: Top heat outer circuit ~90 % plus ring heating element
• Special features and characteristics:
- Temporary operating mode, not independent
For conventional operating modes:
• PID control (Page 35)
- Accuracy: The appliance switches back to the operating mode from which the rapid heat-up function was started before the temperature reaches its target value
- Peak heat: As for conventional operation modes, this may be slightly higher for temperatures <150 °C
- Heating element: Bottom heating and ring heating element
• Special features and characteristics:
- Temporary operating mode, not independent
- On reaching 75 % of the selected target temperature the appliance switches from settings 1 to settings 2 (type of element control and circulated air motor)
3.14.11 CoolStart
• PID control (Page 35)
- Accuracy: ±10 K
- Peak heat: Considerable temperature overshoot < 20 K - 30 K
- Heating element: Bottom heating and ring heating element, subsequently ring heating element
• Special features and characteristics:
- On reaching 90 % of the selected target temperature the appliance switches from settings 1 to settings 2 (type of element control and circulated air motor)
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Design and function
3.15 Vapour extraction system
3.15.1 Structure
The vapour extraction system conveys excess vapour out of the cooking compartment.
Extracting the vapour prevents it from developing an overpressure and escaping from the cooking compartment at unwanted points (via openings, leaks).
Controlled extraction also prevents the vapour concentration in the cooking compartment from becoming too high or too low.
In view of the factors explained below, we need an extraction that can be controlled by volumetric flow with a minimum extraction via bypass of 4 mm or 8 mm:
• varying amounts of steam arising due to different foodstuffs at the same and different temperatures
• varying amounts of steam condensing on cooler surfaces, depending on the current state of the walls and door of the cooking compartment
Fig. 41: various bypass openings / minimum extraction
Vapour valve versions
• Appliances with full steam and microwave have a vapour valve.
• Appliances without full steam, without microwave and without pyrolytic system have a vapour valve.
• Appliances without full steam, without microwave, with pyrolytic system, and/or added steam and/or cooking sensor and/or drying, have a vapour valve.
• Appliances without full steam, without microwave, with pyrolytic system, without added steam, without cooking sensor and without drying, have no vapour valve.
3.15.2 Function
When it is connected to the power supply and when it is reset, the appliance first checks how long the eccentric takes for a complete rotation. The eccentric rotates at most three times. The flap is then set to its half-open position (eccentric 90° / vapour valve 11° = 50 %).
Depending on the operating mode, the flap may remain in the same position until the cooling fan switches on (at about 80 °C).
For example, if the motor turns the eccentric to 72° - the vapour valve is then 7° = 40 % open.
Fig. 42: Rotation and opening angle of the vapour extraction motor
Angle of rotation
of the eccentric
0° 0° 0 %
36° 1° 20 % 72° 7° 40 % 90° 11° 50 %
108° 15° 60 % 144° 24° 80 % 180° 28° 100 %
Table 7: Angle of rotation, opening angle and opening ratio
For each type of heating there is a fixed assigned parameter that governs the valve position.
The parameters assigned to the various types of heating also depend on the type of appliance:
• Conventional appliances
• Appliances with full steam
• Appliances with microwave (45 cm, without pyrolytic system)
Opening angle of
the vapour valve
Vapour valve
opening ratio
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Design and function
Type of heating Parameter
4D hot air (conventional) slightly open
CircoTherm (conventional, full steam) slightly open
4D hot air (microwave) slightly open
Bread baking setting
(hot air 180 - 224 °C)
Hot air eco (conventional) closed
CircoTherm eco (con-
ventional/full steam)
Hot air eco (microwave) closed
Hot air eco (Italy) closed
Top & bottom heating slightly open
Top/bottom heating (with added steam) closed
Top/bottom heating eco closed
Pizza setting (conventional) slightly open
Pizza setting (full steam) slightly open
Pizza setting (microwave) slightly open
Intensive heat slightly open Full-surface grill open Centre-area grill open
Hot air grill / thermo grill slightly open
Bottom heating more open
Slow cooking closed
Drying open
Keep warm slightly open
Keep warm (with added steam) closed
Preheating ovenware slightly open
Sensor cooking 1 (4D
hot air, conventional)
Sensor cooking 1 (Cir-
coTherm, full steam)
Sensor cooking 1 (microwave) slightly open
Sensor cooking 2 (conventional) slightly open
Sensor cooking 2 (Cir-
coTherm, full steam)
slightly open
closed
slightly open
slightly open
slightly open
Type of heating Parameter
Sensor cooking 2 (con-
ventional, microwave)
Rapid heat-up 1 (top/bottom heating) slightly open
Rapid heat up 2 (hot air) slightly open
Deep-freeze special slightly open
Neff boost slightly open
Deep-freeze special (microwave) slightly open
Defrosting (always temperature) slightly open
Defrosting closed
Pyrolytic self-cleaning closed
EcoClean Direct slightly open
EasyClean closed
Steaming closed Cooking mode (conventional) closed Cooking mode (added steam) closed
Cooking mode (full steam) closed
Regeneration (added steam) closed
Regeneration (full steam) closed
Steam cooking (with special accessories)
Thermo grill / (hot air
grill) with accessories
Table 8: Type of heating and parameter
Example:
• Conventional appliance
• Type of heating 4D hot air - parameter “slightly open”
The table (Opening ratios depending on parameters and oven temperatures) specifies that for temperatures from 0 °C to 150 °C the vapour valve should be 50 % open.
At higher temperatures the fan speed will be increased so that more vapour will be extracted. To compensate, the valve needs to be slightly more closed at high temperatures (from 151 °C to 250 °C 40 % open).
slightly open
more open
slightly open
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Design and function
Parameter 0 - 150 °C 151 - 250 °C 251 - 350 °C > 351 °C
closed 0 % 0 % 0 % 0 %
slightly open 50 % 40 % 35 % does not occur
more open 80 % 60 % 45 % does not occur
open 100 % 100 % 100 % does not occur
Table 9: Opening ratios depending on parameters and oven temperatures
(conventional appliance)
Parameter 0 - 150 °C 151 - 250 °C 251 - 350 °C > 351 °C
closed 0 % 0 % 0 % does not occur
slightly open 50 % 50 % 45 % does not occur
more open 80 % 70 % 55 % does not occur
open 100 % 100 % 100 % does not occur
Table 10: Opening ratios depending on parameters and oven temperatures
(appliance with full steam)
Parameter 0 - 150 °C 151 - 250 °C 251 - 350 °C > 351 °C
closed 0 % 0 % 0 % does not occur
slightly open 50 % 35 % 45 % does not occur
more open 80 % 45 % 55 % does not occur
open 100 % 100 % 100 % does not occur
Table 11: Opening ratios depending on parameters and oven temperatures
(appliance with microwave, 45 cm, without pyrolytic system)
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Fault diagnosis
4.1 Result faults
Fault Possible cause Troubleshooting Food is not cooked
(in baking sensor operation)
(for "Hot air eco"/"Top/bottom heating eco")
Food is heated too slowly
(for "microwave")
Cleaning action is inadequate
(for "EasyClean")
Pieces of dough form a skin
(in the "dough proving setting"/"dough proving setting with steam")
Vapour valve does not close completely. - If the vapour valve does not close completely, this can cause the baking sensor to
switch the appliance off prematurely. Food is not cooked enough. ► Check the function of the vapour valve. (Page 109) ► Replace vapour valve if defective. (Page 180) ► Replace vapour valve motor if defective. (Page 181)
Vapour valve does not close completely. - In these operation modes, only a little energy is supplied to the cooking
compartment. If the vapour valve does not close completely, energy will escape
outwards. Food will not be cooked enough. Baked goods will collapse and crumbs
will become greasy. ► Check the function of the vapour valve. (Page 109) ► Replace vapour valve if defective. (Page 180) ► Replace vapour valve motor if defective. (Page 181)
Not a fault. ► Advise customer:
When the microwave is being operated at high power, the output power is reduced
after 1 minute to prevent the appliance from overheating.
If the appliance has not cooled off sufficiently when it is restarted, only reduced
power will be generated despite a high power setting.
After the cooling fan has switched off, the power that is set will be available when
the appliance is restarted.
Vapour valve does not close completely. - The functioning principle of EasyClean is based on the condensation of the steam
on the surfaces of the cooking compartment. If the vapour valve does not close
completely, the steam escapes and is not available for condensation. The dirt
on the surfaces of the cooking compartment is not moistened sufficiently and is
therefore harder to wipe off. ► Check the vapour valve. (Page 109) ► Replace vapour valve if defective. (Page 180) ► Replace vapour valve motor if defective. (Page 181)
Vapour valve does not close completely. - If the vapour valve does not close completely, moisture will escape outwards.
The proving process will be disrupted and skin may form on the pieces of dough,
for example. This can make it more difficult to continue processing the pieces of
dough. ► Check the function of the vapour valve. (Page 109) ► Replace vapour valve if defective. (Page 180) ► Replace vapour valve motor if defective. (Page 181)
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Fault diagnosis
Fault Possible cause Troubleshooting Food dries out
(for "keeping warm")
Vapour valve does not close completely. - Moisture must remain in the appliance when food is being kept warm. If the vapour
valve does not close completely, the air in the cooking compartment will become
too dry and the food will dry out. ► Check the function of the vapour valve. (Page 109) ► Replace vapour valve if defective. (Page 180) ► Replace defective vapour valve motor. (Page 181)
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Fault diagnosis
4.2 Malfunctions
Fault Possible cause Troubleshooting Rails - Sloping down at the back/askew Not a fault. ► Advise customer:
The rails are installed so that they slope down at the back (89.4°) in order to
prevent the rails from sliding out unintentionally when the door is opened.
Rails - Flashovers/discoloured marks Not a fault.
Rails were retrofitted to replace accessory holders (grids).
Rails - Flashovers between rail and enamelled baking tray
Not a fault.
Impermissible use of accessory.
Enamelled baking tray was used for solo microwave operation.
- Rails may not be retrofitted in appliances with microwave and accessory holders
(grids).
- The waveguide coupling of the microwave is tailored to the respective features.
- If the accessory holders (grids) were to be retrospectively replaced by rails, the
adjustment would change.
- This can cause flashovers or spots with heavy overheating in the cooking
compartment. ► Advise customer:
Retrofitting rails is not possible for appliances with microwaves and accessory
holders (grids).
► Remove the rails and insert the accessory holders (grids) belonging to the
appliance. ► Advise customer:
For appliances with a microwave, only the supplied wire rack may be used in solo
microwave operation and on the priority level.
For solo microwave operation, the priority level is level 1 for 45 cm appliances and
level 2 for 60 cm appliances.
The wire rack must be inserted so that the imprint “Microwave” faces the appliance
door and the curved section faces downwards.
For appliances with a microwave, not only the wire rack may be used for combined
operation modes, but also the baking tray or other supplied accessories.
► Remove the enamelled baking tray and insert the wire rack with the imprint
“Microwave”.
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Fault diagnosis
Fault Possible cause Troubleshooting Rails - Jam/become caught Not a fault. ► Advise customer:
The rails lock into place when they are fully extended (locking stop).
This makes it easy to place accessories in position.
By exerting light and evenly applied pressure (at the left and right), the rails can be
unlocked and slid back into the cooking compartment.
Rails - Uneven running after pyrolysis Not a fault. ► Advise customer:
To restore the even running of the rail, slide it in and out several times after
pyrolysis.
Baking tray/universal pan warped, bent, bounces
Operating ring can be rotated easily / no change on the display
(only Bosch)
Not a fault.
Improper use.
Optocoupler of the control module defec­tive.
- If cold or frozen food is placed onto a hot (preheated) baking tray, the great
difference in temperature can cause sudden and strong deformations of the baking
tray/universal pan.
- Strong and sudden deformations of the baking tray/universal pan may also occur if
the baking tray/universal pan is removed from the cooking compartment with food
on it while still hot and set down onto a cold surface.
- These deformations are not reversible.
- Examples of cold food items are frozen pizza, frozen bread rolls or even cold water.
- Deformed baking trays remain warped, or warp when the temperature increases.
- There are no baking trays or universal pans that are resistant to such great
differences in temperature and that do not warp. ► Advise customer:
To prevent permanent deforming of the baking tray, only place cold or frozen food
onto a cold baking tray
Remove the baking tray from the appliance before pre-heating it.
Please note that only hot liquids may be placed on a hot baking tray (heat liquids
first).
Alternatively, a wire rack with greaseproof paper or a glass tray can also be used.
Do not set a hot baking tray/universal pan down onto a cold surface.
► Replace the defective control module.
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Fault diagnosis
Fault Possible cause Troubleshooting Operating ring does not respond / no
display
Short circuit in the control module caused by magnets falling from the control panel.
- The magnets’ mounting has been improved in the new control panel. ► Replace the defective control module. ► Replace the defective control panel.
Operating ring is hard to turn / remains stuck in a specific position
(only Bosch)
Operation is not interrupted when the door is opened
(only Neff / not with all operating modes)
Display background white/display hard to read
(only Bosch FD 9406-9501)
Fault code is displayed --- - See wiring diagram "Fault codes and service programs (ASP)".
Finger is very dry and/or operating ring was just cleaned.
Indistinguishable or hard-to-see adhesive residues on the exterior of the operating ring.
Not a fault.
Text in instruction manual incomplete.
Software error. - Do not replace the control module!
► Advise customer:
Moisten finger (e.g. on dishcloth).
► Mark a position on the operating ring with a piece of insulating tape. ► Turn the operating ring (360°) gradually (one centimetre at a time). 0 If the operating ring can no longer be turned at a certain position,
► replace the defective operating ring.
► Remove adhesive residues from the operating module. ► Advise customer:
Existing text in the instruction manual
Open appliance door
If you open the appliance door during an operation, the operation will pause.
When you close the door the operation will continue.
Future text in the instruction manual
Open appliance door
If you open the appliance door during an operation, the operation will pause.
When you close the door the operation will continue.
For some types of heating, operation continues even while the appliance door is
open.
- In heating modes “CircoTherm hot air”, “CircoTherm Eco” or “bread baking setting”
the appliance continues to run even while the door is open.
- A new version of the instruction manual is available on the Internet in PDF format.
► Update the software.
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Fault diagnosis
Fault Possible cause Troubleshooting
Appliance does not generate any steam. Hoses to the steam generator and tank
were transposed when they were connect­ed to the double pump.
Appliance continues to heat although the setpoint temperature has been attained
PT500/PT1000 does not correctly lock in the sensor tube.
- In appliances with a microwave, the double pump is located on the left side (viewed
from the front). In appliances without a microwave, the double pump is located on
the right side (viewed from the front). ► In appliances with a microwave, connect the hose to the steam generator on the
double pump to the top connecting piece (connect hose to the tank to the bottom
connecting piece). ► In appliances without a microwave, connect the hose to the steam generator on the
double pump to the bottom connecting piece (connect hose to the tank to the top
connecting piece). ► PT500/PT1000 locks correctly in the sensor tube.
► Remove and install PT500/PT1000 (Page 163)
Brightness of microwave differs from that of the oven
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Software not up to date. ► Use iService to update the software of the microwave oven to the version > R20.
- Different brightness levels may have to be configured in the basic settings of the
appliances. ► Adjust the background lighting of the appliances in the basic settings.
Background lighting of the appliances not adjusted in the basic settings.
- Different brightness levels may have to be configured in the basic settings of the
appliances. ► Adjust the background lighting of the appliances in the basic settings.
Fault diagnosis
Fault Possible cause Troubleshooting
No microwave output / 8A fuse was blown
Folding panel only opens partially Not a fault. ► Advise customer:
Folding panel opens at an angle Not a fault. Due to construction. ► Advise customer:
Folding panel does not close automatically
Cooling fan overruns for too long
(KI01 to KI04 and CPM with software status 0022 and 0026)
Wave guide / magnetron defective. ► Replace 8A fuse.
► Pull CN703 plug from Neo inverter. ► Start operating the microwave. 0 If the 8A fuse was not blown,
► Check the wave guide visually.
► Replace wave guide if defective.
► Check the magnetron. (Page 79)
► Replace the magnetron if defective. (Page 158) 0 If the 8A fuse is blown again,
► Replace 8A fuse.
► See "Neo inverter and/or magnetron defective".
Neo inverter and/or magnetron defective. ► Check Neo inverter. (Page 83)
► Check magnetron. (Page 79) ► Replace Neo inverter if defective. (Page 159) ► Replace magnetron if defective. (Page 158) 0 If Neo inverter and magnetron are OK,
► see "Short-circuit switch and/or primary switch defective".
Short-circuit switch and/or primary switch defective.
Not a fault. ► Advise customer:
Cooling fan overrun is not optimised with this software status.
- The short-circuit switch must have continuity when the door is closed.
- The primary switch must have continuity when the door is open.
► Check the short-circuit switch and the primary switch. ► Replace the short-circuit switch and the primary switch if defective.
After actuating the symbol "Open panel", the folding panel is only automatically
opened to form a gap and must be pulled forward manually with both hands and
then slid upwards until it locks into place.
After actuating the symbol "Open panel", the folding panel is only automatically
opened to form a gap and must be pulled forward manually with both hands and
then slid upwards until it locks into place.
The folding panel can only be closed by hand, and must be pulled downwards
manually, using both hands and slowly, and then slid backwards until it is
completely closed.
► Flash CPM to software status ≥ 0027.
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Fault diagnosis
Fault Possible cause Troubleshooting
(CPM with software status 0027 or above)
NeffLight in the "slide and hide" door flashes briefly
(every 30 seconds)
Reset during operation in main menu "MyProfile"
(only Neff AV2)
Door (fold-down door) opens during operation (only microwave appliances)
Door closing is displayed.
Door (fold-down door) cannot be closed (only microwave appliances)
Not a fault. Current state of technology. ► Advise customer:
Sufficient cooling of the appliance is required when it has become hot during
operation.
The contact springs of the NeffLight are touched by the hinge notch (earth leak­age).
Software error. ► Flash MMB to software status ≥ 5800.
Door plunger bent.
Door (fold-down door) cannot be closed (Page 50)
When closing the door, the door plunger collides with the door switch's guide fun­nel, which moves too freely and has slipped down.
- Improved hinges can be ordered (distance between hinge notch and contact spring
was increased). ► Emergency help: transpose the L and the N of the mains connection (not a
permanent solution!). ► Replace the right hinge.
► Calibrate TouchControl.
► Replace defective door switch. ► Replace bent door plunger.
- If the guide funnel has slipped, closing the door with great force may deform the
door plunger.
- The door may open during operation if the door plunger is bent. ► Check the door plunger. ► Replace bent door plunger. ► Replace the door switch.
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Fault diagnosis
Fault Possible cause Troubleshooting Door (fold-down door) does not open
90°
Door (fold-down door) closing is displayed (only microwave appliances)
Clock gains > 1 minute every day Conductor (PE connection) defective or
Time - ist fast / slow
(Deviation < 6 minutes per half year)
(Deviation > 6 minutes in half a year)
Not a fault. Due to construction. ► Advise customer:
Due to its construction, the fold-down door can be opened to 87 +/- 1°.
An opening angle of 90° cannot be achieved.
This does not restrict the use of the appliance.
Door plunger bent.
Door (fold-down door) cannot be closed (Page 50)
missing.
Not a fault. - The time for appliances is derived from the mains frequency or the frequency of an
Operating module defective. - The operating module must only be replaced if the deviation of time of > 6 minutes
► Replace defective door switch. ► Replace bent door plunger.
- Appliance must not be operated with defective or missing conductor! ► Connect protective conductor correctly. ► Run a safety test according to VDE 0701.
oscillating crystal.
- However, the slight fluctuations of the mains frequency result in large deviations of
the time.
- For this reason, the time is derived from the frequency of an oscillating crystal for
all IC 6 appliances. ► Advise customer:
The time must only be compared with the actual time (for example time of a radio
clock).
The time must not be compared with the times of other household appliances, as
all these appliances can have slight time deviations due to component tolerances
and different thermal stresses.
The deviation must be observed across a time period of 6 months. Consideration of
shorter periods is not possible.
A deviation of time of +/- 6 minutes in half a year is normal and corresponds to
technical specifications.
was determined under the following conditions: ► 1. The time was correctly set. ► 2. The time was compared with the actual time (for example the time of a radio
clock) and not with other household appliances. ► 3. The observation period was half a year. Observation of shorter periods and
extrapolation to half a year is not permitted. ► Replace the operating module.
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Fault diagnosis
Fault Possible cause Troubleshooting
Water escapes into the cooking compartment via the steam inlet
The electronics is not receiving a signal from the level sensor of the steam genera­tor.
► Check that the connection between the steam generator’s level sensor and the
electronics is in place. ► Check that the connection between the steam generator’s level sensor and the
electronics is not interrupted. ► Check whether the connection between the steam generator’s level sensor and the
electronics is plugged in. ► Check that the connection between the steam generator’s level sensor and the
electronics is plugged in correctly (K141 / X76.1 - it is possible to plug the level
sensor into the edge connector two pins to one side).
Remove water tank is displayed when the
pyrolytic self-clean system is started
(The error memory reports F5211 al­though the water tank has been re­moved)
Fill water tank is displayed although the
tank is still full
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The water tank level sensor is incorrectly calibrated.
The electronics are not receiving a signal from the level sensor of the steam genera­tor.
- A calibrated water tank level sensor cannot be calibrated afresh. ► Replace the water tank level sensor.
► Check that the connection between the steam generator’s level sensor and the
electronics is in place. ► Check that the connection between the steam generator’s level sensor and the
electronics is not interrupted. ► Check whether the connection between the steam generator’s level sensor and the
electronics is plugged in. ► Check that the connection between the steam generator's level sensor and the
electronics is plugged in correctly (K141/X76.1 - it is possible to plug the level
sensor into the edge connector 2 pins further to one side).
Fault diagnosis
Fault Possible cause Troubleshooting
Increased water consumption when operating in “steaming” mode
Vapour valve does not close completely. - In steaming mode, moisture is supposed to remain in the cooking compartment.
If the vapour valve does not close properly, steam will continuously escape to the
outside and more will have to be generated. In this case the heater fin evaporator
will cycle more rapidly, causing it to consume more power. Customers will notice
this only when cooking a large weight of food. ► Check the function of the vapour valve. (Page 109) ► Replace vapour valve if defective. (Page 180) ► Replace vapour valve motor if defective. (Page 181)
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Fault diagnosis
4.3 Noise
Fault Possible cause Troubleshooting Rails squeaking
(for appliances without a microwave) for appliances with a microwave
High-frequency whistling sound Not a fault. Current state of technology. ► Advise customer:
Cooling fan motor makes a high­frequency noise
(KI01 to KI04 and CPM with software status 0022 and 0026)
(KI01 to KI04 and CPM with software status 0027)
Cooling fan motor whistles at a high frequency at certain speeds
(KI01 to KI04 and CPM with software status 0022 and 0026) - (sporadic, on­ly after several minutes when cooling down after combined operation of mi­crowave/hot air)
(KI01 to KI04 and CPM with soft­ware status ≥ 0027) - (sporadic, on­ly after several minutes when cooling down after combined operation of mi­crowave/hot air)
Cooling fan overrun too loud
(KI01 to KI04 and CPM with software status 0022 and 0026)
Not a fault. ► Advise customer:
Slight squeaking is a normally occurring noise when sliding the rails in and out.
Ceramic rollers are jammed. ► Replace rail. Telescopic bar is bent. ► Replace rail.
The switching power supply in the appliance changes its frequency depending on
the power requirement.
When high power is required, the switched-mode power supply works in an
ultrasonic range that cannot be heard by humans.
When low power is required, the frequency drops to a range that is possible to be
heard by humans.
Fan speed not optimised with this software status.
Not a fault. Current state of technology. ► Advise customer:
Noises not optimised with this software status.
Not a fault. Current state of technology. ► Advise customer:
Fan speed is not optimised with this soft­ware status.
► Flash CPM to software status ≥ 0027.
This appliance uses newer cooling fan motor technology than earlier ones (BLDC
motor).
The operating noise of the new cooling fan motor differs from the operating noise of
the previous cooling fan motors.
► Flash IaB to software status ≥ 5700. ► Flash CPM to software status ≥ 0027.
This appliance uses newer cooling fan motor technology than earlier ones (BLDC
motor).
The operating noise of the new cooling fan motor differs from the operating noise of
the previous cooling fan motors.
► Flash CPM to software status ≥ 0027.
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Fault diagnosis
Fault Possible cause Troubleshooting
(KI01 to KI04 and CPM with software status ≥ 0027)
Not a fault. Current state of technology. ► Advise customer:
Sufficient cooling of the appliance is required when it has become hot during
operation.
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Fault diagnosis
4.4 Other faults (surface defects, cracks, breaks)
Fault Possible cause Troubleshooting Rails discoloured after pyrolysis During cleaning with pyrolysis, a rail was
used which was not resistant to pyrolysis.
Baking tray/universal pan do not fit on the rails
Control panel and/or door askew Not a fault. Current state of technology. - "Perfect installation" is not a product characteristic.
Difference in display colour/brightness Not a fault. ► Advise customer:
Difference in colour of microwave/oven turning handle
Not a fault. ► Advise customer:
Production-related colour tolerances. - The production-related colour tolerances of the microwave turning handle have
- Pyrolysis-resistant rails always have a plasma coating (transparent glass layer).
- This is also easily noticeable after pyrolysis thanks to its rainbow lustre.
- No warranty!
► Advise customer:
After pyrolytic cleaning, some discolouration may remain on pull-out rails which are
not pyrolysis-resistant. This does not affect their function.
The holes on the reverse of the baking tray are not intended for hooking it into the
rails.
The holes are only required for suspending the tray during the enamelling process.
Accessories such as baking trays, universal pans or wire racks are only supposed
to be placed onto the rails between the end stop studs at the front and rear.
- Appliances correspond to current state of technology.
- Deviations in terms of the tolerances are possible.
- Deviations may occur in the control panel and door (vertical/horizontal).
- Lateral displacement between the control panel, decorative strips and the door is
possible.
- Exhaust gap may be too narrow or too wide.
- There is always a slight depression of the door at the lower pivoting point.
- For appliances without a microwave, only the exhaust gap can be adjusted (with
clip).
- For appliances with a microwave, the door can be adjusted using the adjusting
mandrels. ► Check the alignment of the panel with the door. (Page 61)
Depending on the viewing angle, the colours or brightness of displays are
perceived differently.
been minimised. ► Replace the microwave turning handle.
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Fault diagnosis
Fault Possible cause Troubleshooting Gap between panel and door varies
(in appliances installed next to each other)
Not a fault. Production-related tolerances. ? Repair set (Z clamps) [ 00633544]
- The larger exhaust gap can be reduced by 0.6 mm by installing a repair set.
- The exhaust gap in fully automatic coffee machines cannot be reduced.
- The exhaust gap cannot be reduced in appliances that already have a Z clamp
installed (to correct the parallelism of the exhaust gap). ► Remove the front glass (see instruction manual). ► Insert the Z clamps.
► Put back the front glass (see instruction manual).
Connecting sleeve of the cooking compartment seal is becoming frayed
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Connecting sleeve not protected against fraying.
- The fibres of the new connecting sleeve are now pushed inwards at the ends. ► Replace the seal if defective. ► Advise customer:
This seal is highly heat-resistant and consists of a shaping wire that is covered by a
braided hose.
The join in this hose is covered by a further braided sleeve of the same material.
The seal and its connecting sleeve should be cleaned as specified in the instruction
manual, i.e. using only water with a little detergent.
You should not use any harsh or abrasive cloths, sponges or cleaning agents.
Fault diagnosis
4.5 Leaks
Fault Possible cause Troubleshooting Steam escapes in the top right-hand
corner
(Condensed water on the control mod­ule)
Vapour valve incorrectly assembled.
The retaining tabs of the vapour valve are not latched into the air baffle.
- Incorrect assembly has left a gap that allows „external air" to be drawn in.
- The steam is therefore not properly extracted via the ventilation duct.
► Assemble the vapour valve correctly.
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Fault diagnosis
Fault Possible cause Troubleshooting
The vapour valve and/or the air baffle are distorted because of faulty TOX points.
- A production fault at the TOX points has the effect of allowing the vapour valve to
distort when it is screwed tight.
- This leaves a gap that allows “external air” to be drawn in.
- This prevents the steam from being properly extracted via the ventilation duct.
- There may not be any gap between the vapour valve and the air baffle.
► Check whether the air baffle was distorted due to faulty TOX points on the vapour
valve. ► Replace the distorted air baffle. ► Replace the distorted vapour valve.
Water drips onto the floor/furniture (when the door is opened)
Vapour/condensation escapes Vapour valve does not close correctly. ► Check the vapour system. (Page 109)
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Not a fault. Current state of technology.
During condensation-intensive operation, condensation collects in the door seal and then accumulates up the door panel.
- Fault only occurs on appliances without steaming function.
- The condensation strip can not be installed on appliances with a microwave. ? Condensation strip [ 11003837] ? Panel holder [ 11003838] ? Self-tapping screws 00611413
► Retrofit condensation strip.
Test
5.1 Measure the distance between the front glass panel and the cabinet cavity
Required tools: ? Callipers [ 00341574]
Prerequisite: The appliance must be flush to the cabinet cavity at left, right, top and bottom.
If an eFSB is being compiled, four photos showing calliper readings must be attached.
All measurements must be documented in a measurement protocol.
► Measure the distance at all four positions.
Result: Target distance = 19 mm ± 1 mm
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Test
5.2 Checking the alignment of the panel with the door
Replacement of parts or appliances may only take place if the permissible tolerances are not adhered to!
5.2.1 Checking protrusion/depression of the door relative to the panel
Tolerances:
• Protrusion of the door relative to the panel ≤ 2 mm
• Depression of the door relative to the panel ≤ 1 mm
1. Measure the protrusion/depression.
1. Measure the lateral displacement.
2. Compare the measurement result with the permissible tolerance.
5.2.3 Checking the tilt of the panel relative to the door's decorative strips
Tolerance:
• Left(1)-right(2)/right(2)-left(1) ≤ ± 1 mm
1. Measure the tilt.
2. Compare the measurement result with the permissible tolerances.
5.2.2 Checking the lateral displacement of the panel relative to the door's decorative strips
Tolerances:
• Left/right ≤ ± 1 mm
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Test
2. Compare the measurement result with the permissible tolerances.
5.2.4 Checking the exhaust gap between the panel and the door
Tolerance:
• 10 mm ± 1 mm
1. Measure the exhaust gap.
2. Compare the measurement result with the permissible tolerance.
5.2.5 Checking the panel inclination
Tolerance:
• ± 0.75°
Required tools: ? Protractor
1. Measure the panel inclination.
2. Compare the measurement result with the permissible tolerance.
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Test
5.3 Checking the cooking sensor (Lambda sensor)
It is not possible to improve the function of the cooking sensor by manually calibrating it in the Service program!
Only new cooking sensors may / must be calibrated, once only, in the Service program (coordinates the cooking sensor with the sensor module)!
Fig. 43: Position of the cooking sensor (in the roof of the cooking compartment
at back right)
1. Check whether the openings in the metal housing of the cooking sensor are
soiled or blocked.
2.
Water or moisture will damage the cooking sensor!
► Do not clean the cooking sensor with wet or moist utensils.
Clean soiled or blocked openings in the metal housing of the cooking sensor with a dry brush.
3. Start the Lambda sensor test in the Service program
4. Read off the Ipump µA value.
5. Read off the Probe service % value.
Result: The values Ipump 4000 µA ± 1000 µA and Probe service between 100 % and 90 % are normal. With values of Ipump 3000 µA ± 1000 µA and Probe service between 89 % and 60 % the appliance can still function. Dishes that incorporate only a little moisture may encounter problems with values Ipump between 3000 µA and 2000 µA. The appliance cannot operate with values Ipump < 2000 µA or Probe service < 60 %.
6. Replace the defective cooking sensor.
7. Calibrate the new cooking sensor manually in the Service program.
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Test
5.4 Check the ventilation of the appliance in the furniture
5.4.1 Checking the ventilation cut-out in the base unit
1. Check that the ventilation cut-out in the floor of the base unit complies with the
drawing.
2. If a ventilation cut-out too small, enlarge it (or have it enlarged) to comply with
the specification.
5.4.2 Checking the ventilation cut-out in the tall unit
1. Check that the ventilation cut-out in the floor of the tall unit complies with the drawing.
2. If a ventilation cut-out too small, enlarge it (or have it enlarged) to comply with the specification.
5.4.3 Checking the ventilation at the front
Cooling air from around the appliance’s housing is drawn in by the cooling fan and blown out to the front between the fascia and the door.
Any vapours arising inside the appliance are taken up by this stream of air and also blown out to the front.
For this reason, there must always be an air gap between the appliance and adjacent cabinets or worktops.
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Test
1. Check that the distance to adjacent cabinets and worktop complies with the drawing. (all brands at least 5 mm and for Neff at least 4 mm).
Fig. 44: Minimum distance and worktop thickness
2. Remove heat protection cover strips with a distance < 5 mm.
5.4.4 Checking the ventilation between the oven and the hob
If the oven is being installed underneath a hob, the following must be considered:
• the minimum distance X between the appliances
• the minimum thickness Y of the worktop
Minimum distance X (mm) Worktop thick-
ness Y (mm)
Full-surface induction hob 5 43 Induction hob 5 37 Gas hob 5 32 Electric hob 2 22
Table 12: Minimum distance and worktop thickness
1. Measure the minimum distance X between hob and oven.
2. Measure the minimum worktop thickness Y.
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Test
5.5 Check the meat temperature probe (NTC)
°C 0 1 2 3 4 5 6 7 8 9
0
≥ 147.40 k Ω
≤ 173.60 k Ω
≥ 91.36 k Ω
10
≤ 105.60 k Ω
≥ 58.11 k Ω
20
≤ 65.91 k Ω ≥ 37.84 k Ω
30
≤ 42.18 k Ω ≥ 25.19 k Ω
40
≤ 27.61 k Ω ≥ 17.12 k Ω
50
≤ 18.47 k Ω
≥ 11.86 k Ω
60
≤ 12.60 k Ω ≥ 8.364 k Ω
70
≤ 8.765 k Ω ≥ 5.961 k Ω
80
≤ 6.242 k Ω ≥ 4.290 k Ω
90
≤ 4.553 k Ω ≥ 3.136 k Ω
100
≤ 3.370 k Ω
Table 13: Meat temperature probe (resistance values in 1 °C increments)
≥ 140.30 k Ω
≤ 165.00 k Ω
≥ 87.22 k Ω
≤ 100.60 k Ω
≥ 55.61 k Ω
≤ 62.96 k Ω ≥ 36.30 k Ω
≤ 40.39 k Ω ≥ 24.21 k Ω
≤ 26.50 k Ω ≥ 16.49 k Ω
≤ 17.76 k Ω ≥ 11.44 k Ω
≤ 12.14 k Ω ≥ 8.084 k Ω
≤ 8.461 k Ω ≥ 5.763 k Ω
≤ 6.047 k Ω ≥ 4.155 k Ω
≤ 4.415 k Ω ≥ 3.042 k Ω
≤ 3.272 k Ω
≥ 133.60 k Ω
≤ 156.80 k Ω
≥ 83.29 k Ω
≤ 95.88 k Ω ≥ 53.23 k Ω
≤ 60.17 k Ω ≥ 34.82 k Ω
≤ 38.68 k Ω ≥ 23.28 k Ω
≤ 25.44 k Ω ≥ 15.88 k Ω
≤ 17.08 k Ω ≥ 11.04 k Ω
≤ 11.70 k Ω ≥ 7.816 k Ω
≤ 8.168 k Ω ≥ 5.574 k Ω
≤ 5.856 k Ω ≥ 4.024 k Ω
≤ 4.282 k Ω ≥ 2.951 k Ω
≤ 3.178 k Ω
≥ 127.30 k Ω
≤ 149.10 k Ω
≥ 79.56 k Ω
≤ 91.41 k Ω ≥ 50.97 k Ω
≤ 57.50 k Ω ≥ 33.42 k Ω
≤ 37.06 k Ω ≥ 22.39 k Ω
≤ 24.42 k Ω ≥ 15.30 k Ω
≤ 16.44 k Ω ≥ 10.66 k Ω
≤ 11.28 k Ω ≥ 7.558 k Ω
≤ 7.887 k Ω ≥ 5.391 k Ω
≤ 5.671 k Ω ≥ 3.899 k Ω
≤ 4.154 k Ω ≥ 2.863 k Ω
≤ 3.087 k Ω
≥ 121.30 k Ω
≤ 141.80 k Ω
≥ 76.01 k Ω
≤ 87.17 k Ω ≥ 48.81 k Ω
≤ 54.94 k Ω ≥ 32.07 k Ω
≤ 35.51 k Ω ≥ 21.53 k Ω
≤ 23.45 k Ω ≥ 14.75 k Ω
≤ 15.82 k Ω ≥ 10.29 k Ω
≤ 10.88 k Ω ≥ 7.309 k Ω
≤ 7.618 k Ω ≥ 5.216 k Ω
≤ 5.494 k Ω ≥ 3.778 k Ω
≤ 4.030 k Ω ≥ 2.778 k Ω
≤ 2.999 k Ω
≥ 115.60 k Ω
≤ 134.90 k Ω
≥ 72.64 k Ω
≤ 83.15 k Ω ≥ 46.76 k Ω
≤ 52.57 k Ω ≥ 30.79 k Ω
≤ 34.03 k Ω ≥ 20.71 k Ω
≤ 22.53 k Ω ≥ 14.21 k Ω
≤ 15.22 k Ω ≥ 9.937 k Ω
≤ 10.49 k Ω ≥ 7.070 k Ω
≤ 7.358 k Ω ≥ 5.046 k Ω
≤ 5.322 k Ω ≥ 3.661 k Ω
≤ 3.910 k Ω ≥ 2.696 k Ω
≤ 2.914 k Ω
≥ 110.30 k Ω
≤ 128.40 k Ω
≥ 69.44 k Ω
≤ 79.33 k Ω ≥ 44.80 k Ω
≤ 50.28 k Ω ≥ 29.57 k Ω
≤ 32.62 k Ω ≥ 19.93 k Ω
≤ 21.64 k Ω ≥ 13.70 k Ω
≤ 14.65 k Ω ≥ 9.597 k Ω
≤ 10.11 k Ω ≥ 6.830 k Ω
≤ 7.119 k Ω ≥ 4.884 k Ω
≤ 5.157 k Ω ≥ 3.548 k Ω
≤ 3.794 k Ω ≥ 2.617 k Ω
≤ 2.832 k Ω
≥ 105.20 k Ω
≤ 122.20 k Ω
≥ 66.39 k Ω
≤ 75.71 k Ω ≥ 42.93 k Ω
≤ 48.10 k Ω ≥ 28.40 k Ω
≤ 31.28 k Ω ≥ 19.18 k Ω
≤ 20.79 k Ω ≥ 13.21 k Ω
≤ 14.11 k Ω
≥ 9.27 k Ω
≤ 9.756 k Ω ≥ 6.600 k Ω
≤ 6.888 k Ω ≥ 4.727 k Ω
≤ 4.998 k Ω ≥ 3.439 k Ω
≤ 3.682 k Ω ≥ 2.541 k Ω
≤ 2.753 k Ω
≥ 100.30 k Ω
≤ 116.40 k Ω
≥ 63.49 k Ω
≤ 72.27 k Ω ≥ 41.16 k Ω
≤ 46.03 k Ω ≥ 27.28 k Ω
≤ 30.00 k Ω ≥ 18.46 k Ω
≤ 19.98 k Ω ≥ 12.74 k Ω
≤ 13.58 k Ω ≥ 8.956 k Ω
≤ 9.412 k Ω ≥ 6.378 k Ω
≤ 6.666 k Ω ≥ 4.576 k Ω
≤ 4.884 k Ω ≥ 3.335 k Ω
≤ 3.575 k Ω ≥ 2.467 k Ω
≤ 2.676 k Ω
≥ 95.72 k Ω
≤ 110.80 k Ω
≥ 60.73 k Ω
≤ 69.01 k Ω ≥ 39.46 k Ω
≤ 44.05 k Ω ≥ 26.21 k Ω
≤ 28.78 k Ω ≥ 17.77 k Ω
≤ 19.21 k Ω ≥ 12.29 k Ω
≤ 13.08 k Ω ≥ 8.654 k Ω
≤ 9.082 k Ω ≥ 6.165 k Ω
≤ 6.452 k Ω
≥ 4.43 k Ω
≤ 4.696 k Ω ≥ 3.234 k Ω
≤ 3.470 k Ω ≥ 2.395 k Ω
≤ 2.601 k Ω
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Test
5.5.1 Measuring the resistance of the meat temperature
probe (NTC) on the basis of the temperature
Required tools:
? Standard: ? [ 00341511] - Measuring tip red ? [ 00341512] - Measuring tip black ? [ 00340944] - Digital multimeter with software DIMM-Easy ? [ 00341312] - USB adapter ? [ 00341918] - Thermal element adapter for connection of thermal element type
K to digital multimeter
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element ? Alternative: ? [ 00341511] - Measuring tip red ? [ 00341512] - Measuring tip black ? [ 00341480] to [ 00341489] (country-specific) - appliance testers ? [ 00341918] - Thermal element adapter for connection of thermal element type
K to digital multimeter
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element
Prerequisite: Meat temperature sensor is inserted.
6. For a single-point meat temperature probe, measure the resistance between contacts 1 and 3.
7.
For a multipoint meat temperature probe, measure the resistance between contacts 1 and 2, 1 and 3, and 2 and 3.
For a multipoint meat temperature probe, two NTCs are always measured in series.
The measured values must therefore be halved before they can be compared against the setpoint values of the table.
1. Measure the ambient temperature of the meat temperature probe in the cooking compartment.
2. Start the “Core Temp. Probe Test” program.
3. Compare the displayed temperature against the measured ambient temperature.
4. Withdraw the meat temperature probe.
5. Measure the ambient temperature of the NTC.
8. Compare measurements (temperature / resistance) with setpoints.
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Test
9. Replace the meat temperature probe if it is defective.
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Test
5.6 Checking the lighting in the cooking
compartment
5.6.1 Checking the function
1.
• The cooking compartment lighting switches on when the door is opened.
• If the door remains open, then after 15 minutes the cooking compartment lighting will automatically switch off.
Open the appliance door. Result: The light comes on. The light switches off after 15 minutes.
2. In the basic settings you can specify that the cooking
compartment lighting should not switch on while the appliance is in operation.
Check the basic settings. Result: Lighting In operation ON or In operation OFF
5.6.2 Checking the components
• LEDs are operated with direct current.
• A number of LEDs can be connected in series.
• The LED connector K138.X25 is short-circuit-proof.
• The different circuitry of the K138.X35 LED connector may give rise to different
voltages. With one LED, about 3.5 V, with two LEDs, about 7 V and with three LEDs in series about 10.5 V.
• LEDs cannot be measured directly using customer service equipment.
Required tools: ? Multimeter [ 15000062]
Prerequisite:
• Appliance is disconnected from the power supply.
• Appliance has been removed. (Page 125)
• Upper section of the housing has been removed. (Page 121)
• Cabinet back panel has been removed. (Page 122)
LEDs’ service life can be reduced by power surges!
► Never plug in an LED while the power is on.
1. Check that the connection cable from the control power module (Control­Power-Module for short, CPM) to the U2 distributer has no breaks or bad contacts (only if there is more than one LED).
2. Check the U2 distributor for wire breaks or bad contacts.
3. Disconnect the plug U2 from the CPM K138.X25 to the distributor.
4. Connect a meter to the CPM K138.X25.1 and X25.2.
5. Connect the appliance to the power supply and complete the initial start-up.
6. Launch the test program – component test – oven light K24.
7. Measure the open circuit voltage of the CPM K138.X25.1 and X25.2. Result:
22.6 V DC (maximum open circuit voltage is 24 V DC)
8. Terminate the test program – component test – oven light K24 by pressing
on/off .
9. Don’t unplug E22 (U2.X91), the cable is too short for the test.
10. On the U2 distributor, disconnect the plug from the E23 (U2.X93).
11. On the U2 distributor, disconnect the plug from the E24 (U2.X92).
12. Plug LED E23 (right-hand side) directly onto the K138.X25 contact.
13. Set up the test program – component test – oven light K24. Result: LED lights up.
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Test
14. When the test has completed automatically, remove LED 23 from the K138.X25 contact.
15. Plug LED E24 (centre) directly onto the K138.X25 contact.
16. Set up the test program – component test – oven light K24. Result: LED lights up. If both LEDs light up, and you cannot find any fault in the cable or the distributor board, then the left-hand LED is defective.
17. Terminate the test program – component test – oven light.
18. Remove LED 24 from the K138.X25 contact.
19. Connect the plug from E23 to the U2 distributor (U2.X93).
20. Connect the plug from E24 to the U2 distributor (U2.X92).
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Test
5.7 Check the cooking compartment temperature
sensor (PT1000)
5.7.1 Measuring the resistance of the cooking compartment
temperature sensor (PT1000) on the basis of the temperature
Required tools:
? Standard: ? [ 00341511] - Measuring tip red ? [ 00341512] - Measuring tip black ? [ 00340944] - Digital multimeter with software DIMM-Easy ? [ 00341312] - USB adapter ? [ 00341918] - Thermal element adapter for connection of thermal element type
K to digital multimeter
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element ? Alternative: ? [ 00341511] - Measuring tip red ? [ 00341512] - Measuring tip black ? [ 00341480] to [ 00341489] (country-specific) - appliance testers ? [ 00341918] - Thermal element adapter for connecting the thermal element
type K to the appliance tester
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element
Prerequisite:
• Appliance is disconnected from the power supply.
• Appliance has been removed. (Page 125)
• Upper section of the housing has been removed. (Page 121)
• Back panel of the cabinet has been removed. (Page 122)
1. Unplug the cooking compartment temperature sensor from the electronics.
2. Measure the resistance of the cooking compartment temperature sensor on contacts 1 and 2.
3. Measure the ambient temperature of the cooking compartment temperature sensor in the cooking compartment.
4. Compare measurements (temperature / resistance) with
setpoints (Page 73).
5. If the cooking compartment temperature sensor is defective, replace it.
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Test
5.7.2 Compare the measurements (temperature / resistance) with the setpoints
The permissible tolerance is ± 10 Ω.
If the measured value is outside the tolerance, the cooking compartment temperature sensor must be replaced.
°C 0 1 2 3 4 5 6 7 8 9 0 1000.0 1003.9 1007.8 1011.7 1015.6 1019.5 1023.4 1027.3 1031.2 1035.1
10 1039.0 1042.9 1046.8 1050.7 1054.6 1058.5 1062.4 1066.3 1070.2 1074.0 20 1077.9 1081.8 1085.7 1089.6 1093.5 1097.3 1101.2 1105.1 1109.0 1112.9 30 1116.7 1120.6 1124.5 1128.3 1132.2 1136.1 1140.0 1143.8 1147.7 1151.5 40 1155.4 1159.3 1163.1 1167.0 1170.8 1174.7 1178.6 1182.4 1186.3 1190.1 50 1194.0 1197.8 1201.7 1205.5 1209.4 1213.2 1217.1 1220.9 1224.7 1228.6 60 1232.4 1236.3 1240.1 1243.9 1247.8 1251.6 1255.4 1259.3 1263.1 1266.9 70 1270.8 1274.6 1278.4 1282.2 1286.1 1289.9 1293.7 1297.5 1301.3 1305.2 80 1309.0 1312.8 1316.6 1320.4 1324.2 1328.0 1331.8 1335.7 1339.5 1343.3 90 1347.1 1350.9 1354.7 1358.5 1362.3 1366.1 1369.9 1373.7 1377.5 1381.3 100 1385.1 1388.8 1392.6 1396.4 1400.2 1404.0 1407.8 1411.6 1415.4 1419.1 110 1422.9 1426.7 1430.5 1434.3 1438.0 1441.8 1445.6 1449.4 1453.1 1456.9 120 1460.7 1464.4 1468.2 1472.0 1475.8 1479.5 1483.3 1487.0 1490.8 1494.6 130 1498.3 1502.1 1505.8 1509.6 1513.3 1517.1 1520.8 1524.6 1528.3 1532.1 140 1535.8 1539.6 1543.3 1547.1 1550.8 1554.6 1558.3 1562.0 1565.8 1569.5 150 1573.3 1577.0 1580.7 1584.5 1588.2 1591.9 1595.6 1599.4 1603.1 1606.8 160 1610.5 1614.3 1618.0 1621.7 1625.4 1629.1 1632.9 1636.6 1640.3 1644.0 170 1647.7 1651.4 1655.1 1658.9 1662.6 1666.3 1670.0 1673.7 1677.4 1681.1 180 1684.8 1688.5 1692.2 1695.9 1699.6 1703.3 1707.0 1710.7 1714.3 1718.0 190 1721.7 1725.4 1729.1 1732.8 1736.5 1740.2 1743.8 1747.5 1751.2 1754.9 200 1758.6 1762.2 1765.9 1769.6 1773.3 1776.9 1780.6 1784.3 1787.9 1791.6 210 1795.3 1798.9 1802.6 1806.3 1809.9 1813.6 1817.2 1820.9 1824.6 1828.2 220 1831.9 1835.5 1839.2 1842.8 1846.5 1850.1 1853.8 1857.4 1861.1 1864.7 230 1868.4 1872.0 1875.6 1879.3 1882.9 1886.6 1890.2 1893.8 1897.5 1901.1 240 1904.7 1908.4 1908.4 1915.6 1919.2 1922.9 1926.5 1930.1 1933.7 1937.4 250 1941.0 1944.6 1948.2 1951.8 1955.5 1959.1 1962.7 1966.3 1969.9 1973.5 260 1977.1 1980.7 1984.3 1987.9 1991.5 1995.1 1998.7 2002.3 2005.9 2009.5
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Test
°C 0 1 2 3 4 5 6 7 8 9 270 2013.1 2016.7 2020.3 2023.9 2027.5 2031.1 2034.7 2038.3 2041.9 2045.5
280 2049.0 2052.6 2056.2 2059.8 2063.4 2067.0 2070.5 2074.1 2077.7 2081.3 290 2084.8 2088.4 2092.0 2095.6 2099.1 2102.7 2106.3 2109.8 2113.4 2117.0 300 2120.5 2124.1 2127.6 2131.2 2134.8 2138.3 2141.9 2145.4 2149.0 2152.5 310 2156.1 2159.6 2163.2 2166.7 2170.3 2173.8 2177.4 2180.9 2184.4 2188.0 320 2191.5 2195.1 2198.6 2202.1 2205.7 2209.2 2212.7 2216.3 2219.8 2223.3 330 2226.8 2230.4 2233.9 2237.4 2240.9 2244.5 2248.0 2251.5 2255.0 2258.5 340 2262.1 2265.6 2269.1 2272.6 2276.1 2279.6 2283.1 2286.6 2290.2 2293.7 350 2297.2 2300.7 2304.2 2307.7 2311.2 2314.7 2318.2 2321.7 2325.2 2328.7 360 2332.1 2335.6 2339.1 2342.6 2346.1 2349.6 2353.1 2356.6 2360.0 2363.5 370 2367.0 2370.5 2374.0 2377.4 2380.9 2384.4 2387.9 2391.4 2394.8 2398.3 380 2401.8 2405.2 2408.7 2412.2 2415.6 2419.1 2422.6 2426.0 2429.5 2432.9 390 2436.4 2439.9 2443.3 2446.8 2450.2 2453.7 2457.1 2460.6 2464.0 2467.5 400 2470.9 2474.4 2477.8 2481.3 2484.7 2488.1 2491.6 2495.0 2498.5 2501.9 410 2505.3 2508.8 2512.2 2515.6 2519.1 2522.5 2525.9 2529.3 2532.8 2536.2 420 2539.6 2543.0 2546.5 2549.9 2553.3 2556.7 2560.1 2563.5 2567.0 2570.4 430 2573.8 2577.2 2580.6 2584.0 2587.4 2590.8 2594.2 2597.6 2601.0 2604.4 440 2607.8 2611.2 2614.6 2618.0 2621.4 2624.8 2628.2 2631.6 2635.0 2638.4 450 2641.8 2645.2 2648.6 2652.0 2655.3 2658.7 2662.1 2665.5 2668.9 2672.2 460 2675.6 2679.0 2682.4 2685.7 2689.1 2692.5 2695.9 2699.2 2702.6 2706.0 470 2709.3 2712.7 2716.1 2719.4 2722.8 2726.1 2729.5 2732.9 2736.2 2739.6 480 2742.9 2746.3 2749.6 2753.0 2756.3 2759.7 2763.0 2766.4 2769.7 2773.1 490 2776.4 2779.8 2783.1 2786.4 2789.8 2793.1 2796.4 2799.8 2803.1 2806.4
Table 14: Widerstandswerte des Garraum-Temperaturfühlers (PT1000) in 1 °C Schritten
►
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Test
5.8 Check the cooking compartment temperature sensor (PT500)
5.8.1 Measuring the resistance of the cooking compartment temperature sensor (PT500) on the basis of the temperature
Required tools:
? Standard: ? [ 00341511] - Measuring tip red ? [ 00341512] - Measuring tip black ? [ 00340944] - Digital multimeter with software DIMM-Easy ? [ 00341312] - USB adapter ? [ 00341918] - Thermal element adapter for connection of thermal element type
K to digital multimeter
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element ? Alternative: ? [ 00341511] - Measuring tip red ? [ 00341512] - Measuring tip black ? [ 00341480] to [ 00341489] (country-specific) - appliance testers ? [ 00341918] - Thermal element adapter for connecting the thermal element
type K to the appliance tester
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element
Prerequisite:
• Appliance is disconnected from the power supply.
• Appliance has been removed. (Page 125)
• Upper section of the housing has been removed. (Page 121)
• Back panel of the cabinet has been removed. (Page 122)
1. Unplug the cooking compartment temperature sensor from the electronics.
2. Measure the resistance of the cooking compartment temperature sensor on contacts 1 and 2.
3. Measure the ambient temperature of the cooking compartment temperature sensor in the cooking compartment.
4. Compare measurements (temperature / resistance) with
setpoints (Page 76).
5. If the cooking compartment temperature sensor is defective, replace it.
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5.8.2 Compare the measurements (temperature / resistance) with the setpoints
The permissible tolerance is ± 10 Ω.
If the measured value is outside the tolerance, the cooking compartment temperature sensor must be replaced.
°C 0 1 2 3 4 5 6 7 8 9 0 500.00 501.95 503.91 505.86 507.81 509.76 511.76 513.67 515.62 517.56
10 519.51 521.46 523.41 525.36 527.30 529.25 531.19 533.14 535.08 537.03 20 538.97 540.91 542.85 544.79 546.73 548.67 550.61 552.55 554.49 556.43 30 558.37 560.30 562.24 564.17 566.11 568.04 569.98 571.91 573.84 575.77 40 577.70 579.64 581.57 583.50 585.42 587.35 589.28 591.21 593.13 595.06 50 596.99 598.91 600.84 602.76 604.68 606.61 608.53 610.45 612.37 614.29 60 616.21 618.13 620.05 621.97 623.88 625.80 627.72 629.63 631.55 633.46 70 635.38 637.29 639.20 641.11 634.03 644.94 646.85 648.76 650.67 652.58 80 654.48 656.39 658.30 660.21 662.11 664.02 665.92 667.83 669.73 671.63 90 673.54 675.44 677.34 679.24 681.14 683.04 684.94 686.84 688.73 690.63 100 692.53 694.42 696.32 698.21 700.11 702.00 703.90 705.79 707.68 709.57 110 711.46 713.35 715.24 717.13 719.02 720.91 722.80 724.68 726.57 728.46 120 730.34 732.23 734.11 735.99 737.88 739.76 741.64 743.52 745.40 747.28 130 749.16 751.04 752.92 754.79 756.67 758.55 760.42 762.30 764.17 766.05 140 767.92 769.80 771.67 773.54 775.41 777.28 779.15 781.02 782.89 784.76 150 786.63 788.49 790.36 792.23 794.09 795.96 797.82 799.68 801.55 803.41 160 805.27 807.13 808.99 810.86 812.71 814.57 816.43 818.29 820.15 822.00 170 823.86 825.72 827.57 829.43 831.28 833.13 834.99 836.84 838.69 840.54 180 842.39 844.24 846.09 847.94 849.79 851.64 853.48 855.33 857.18 859.02 190 860.87 862.71 864.55 866.40 868.24 870.08 871.92 873.76 875.60 877.44 200 879.28 881.12 882.96 884.79 886.63 888.47 890.30 892.14 893.97 895.80 210 897.64 899.47 901.30 903.13 904.97 906.80 908.62 910.45 912.28 914.11 220 915.94 917.76 919.59 921.42 923.24 925.07 926.89 928.71 930.54 932.36 230 934.18 936.00 937.82 939.64 941.46 943.28 945.10 946.92 948.73 950.55 240 952.36 954.18 955.99 957.81 959.62 961.44 963.25 965.06 966.87 968.68 250 970.49 972.30 974.11 975.92 977.73 979.53 981.34 983.15 984.95 986.76 260 988.56 990.60 992.17 993.97 995.77 997.37 999.37 1001.2 1003.0 1004.8
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°C 0 1 2 3 4 5 6 7 8 9 270 1006.6 1008.4 1010.2 1012.0 1013.8 1015.6 1017.4 1019.1 1012.9 1022.7
280 1024.5 1026.3 1028.1 1029.9 1031.7 1033.5 1035.3 1037.1 1038.8 1040.6 290 1042.4 1044.2 1046.0 1047.8 1049.6 1051.3 1053.1 1054.9 1056.7 1058.5 300 1060.3 1062.0 1063.8 1065.6 1067.4 1069.2 1070.9 1072.7 1074.5 1076.3 310 1078.0 1079.8 1081.6 1083.4 1085.1 1086.9 1088.7 1090.4 1092.2 1094.0 320 1095.8 1097.5 1099.3 1101.1 1102.8 1104.6 1106.4 1108.1 1109.9 1111.7 330 1113.4 1115.2 1117.0 1118.7 1120.5 1122.2 1124.0 1125.8 1127.5 1129.3 340 1131.0 1132.8 1134.5 1136.3 1138.1 1139.8 1141.6 1143.3 1145.1 1146.8 350 1148.6 1150.3 1152.1 1153.8 1155.6 1157.3 1159.1 1160.8 1162.6 1164.3 360 1166.1 1167.8 1169.6 1171.3 1173.1 1174.8 1176.5 1178.3 1180.0 1181.8 370 1183.5 1185.2 1187.0 1188.7 1190.5 1192.2 1193.9 1195.7 1197.4 1199.1 380 1200.9 1202.6 1204.4 1206.1 1207.8 1209.5 1211.3 1213.0 1214.7 1216.5 390 1218.2 1219.9 1221.7 1223.4 1225.1 1226.8 1228.6 1230.3 1232.0 1233.7 400 1235.5 1237.2 1238.9 1240.6 1242.3 1244.1 1245.8 1247.5 1249.2 1250.9 410 1252.7 1254.4 1256.1 1257.8 1259.5 1261.2 1263.0 1264.7 1266.4 1268.1 420 1269.8 1271.5 1273.2 1274.9 1276.6 1278.4 1280.1 1281.8 1283.5 1285.2 430 1286.9 1288.6 1290.3 1292.0 1293.7 1295.4 1297.1 1298.8 1300.5 1302.2 440 1303.9 1305.6 1307.3 1309.0 1310.7 1312.4 1314.1 1315.8 1317.5 1319.2 450 1320.9 1322.6 1324.3 1326.0 1327.7 1329.4 1331.1 1332.7 1334.4 1336.1 460 1337.8 1339.5 1341.2 1342.9 1344.6 1346.2 1347.9 1349.6 1351.3 1353.0 470 1354.7 1356.3 1358.0 1359.7 1361.4 1363.1 1364.8 1366.4 1368.1 1369.8 480 1371.5 1373.1 1374.8 1376.5 1378.2 1379.8 1381.5 1383.2 1384.9 1386.5 490 1388.2 1389.9 1391.5 1393.2 1394.9 1396.6 1398.2 1399.9 1401.6 1403.9 500 1404.9 1406.6 1408.2 1409.9 1411.5 1413.2 1414.9 1416.5 1418.2 1419.9
Table 15: Widerstandswerte des Garraum-Temperaturfühlers (PT500) in 1 °C Schritten
►
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5.9 Checking condensation
5.9.1 60 cm appliances
Required tools:
? Baking tray (appliance accessory) ? Universal pan (appliance accessory)
Prerequisite:
• Built-in vapour valve motor (Page 181) has been checked.
• Built-in vapour valve (Page 180) has been checked.
• Function of vapour system (Page 109) has been checked.
1. Slide universal pan in at level 1.
2. Fill the universal pan with 0.5 l of water.
3. Slide the baking tray in at level 3.
4. Fill the baking tray with 0.5 l of water.
5. Set the 4D hot air heating mode.
6. Set the temperature at 250 °C.
7. Set the duration at 30 minutes.
8.
The door must not be opened during operation.
Appliance with steaming function:
When the door is opened, water escapes from the door and runs onto the condensation strip, and from there into the bottom section of the housing to evaporate. Not a fault. Current state of technology.
Appliance with microwave:
After condensation-intensive operation, water may run out of the door and onto the furniture when the door is opened. Not a fault. Current state of technology. Any leaking condensation should be mopped up.
5.9.2 45 cm appliances
Required tools: ? Universal pan (appliance accessory)
Prerequisite:
• Built-in vapour valve motor (Page 181) has been checked.
• Built-in vapour valve (Page 180) has been checked.
• Function of vapour system (Page 109) has been checked.
1. Slide the universal pan in at level 2.
2. Fill the universal pan with 0.5 l of water.
3. Set the temperature at 250 °C.
4. Set the duration at 30 minutes.
5.
Start the appliance.
Result: The appliance is OK if no condensation escapes while the door is closed.
Appliance without steaming function and without microwave:
After condensation-intensive operation, water may run out of the door and onto the furniture when the door is opened. Not a fault. Current state of technology. Any leaking condensation should be mopped up. Alternatively, condensation strip [ 11003837] can be retrofitted along with the panel holder [ 11003838] and three self-tapping screws [ 00611413] .
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Start the appliance.
Result: The appliance is OK if no condensation escapes while the door is closed.
Appliance without steaming function and without microwave:
After condensation-intensive operation, water may run out of the door and onto the furniture when the door is opened. Not a fault. Current state of technology.
The door must not be opened during operation.
Test
Any leaking condensation should be mopped up. Alternatively, condensation strip [ 11003837] can be retrofitted along with the panel holder [ 11003838] and three self-tapping screws [ 00611413] . Appliance with steaming function:: When the door is opened, water escapes from the door and runs onto the condensation strip, and from there into the bottom section of the housing to evaporate.
Not a fault. Current state of technology.
Appliance with microwave:
After condensation-intensive operation, water may run out of the door and onto the furniture when the door is opened. Not a fault. Current state of technology. Any leaking condensation should be mopped up.
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5.10 Magnetron prüfen
Fehler des Magnetrons treten im laufenden Betrieb oft als Summ-, Knister- und Knackgeräusche auf.
Fehler des Magnetrons können durch eine visuelle Prüfung und/oder durch Widerstandsmessung des Heizfadens und eine Hochspannungs-Isolationsprüfung der Heizkathode ermittelt werden.
Required tools:
? Digitalmultimeter (VC850K) [ 15000062] ? Appliance Tester (länderspezifisch) ? Prüfspitze rot [ 00341508] ? Prüfspitze schwarz [ 00341509]
Prerequisite:
• Appliance is disconnected from the power supply.
• Magnetron ist ausgebaut. (Page 158)
5.10.1 Magnetron visuell prüfen
1. Magnetron visuell auf Brandflecke (1) und geschmolzene Antenne (2) prüfen.
2. Magnetron visuell auf gebrochene Magneten prüfen.
3. Alle Anschlusskontakte visuell auf Beschädigungen prüfen.
4. Hohlleiter auf Beschädigungen und Fremdkörper visuell prüfen.
5.10.2 Widerstand des Heizfadens messen
Measur-
ing point
f plus FA minus < 1 Ω (0.13 Ω)
Table 16: Widerstandwerte des Heizfadens
1. Messgerät auf Schaltfläche "Digital Remote Multimeter" und dann auf Widerstandsmessung stellen.
Polarität
Measur­ing point
Polarität Status
2. Gemessenen Widerstandswert mit Wert der Tabelle vergleichen.
5.10.3 Isolation der Heizkathode messen (Prüfspannung >
500 V)
Ein Isolationsfehler zwischen Anode und Kathode kann nur mit einer Prüfspannung von 4000 V ermittelt werden. Messungen mit dieser Prüfspannung können vom Kundendienst nicht durchgeführt werden. Um diesen Fehler auszuschließen, muss das Magnetron probehalber ausgetauscht werden.
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Ein Isolationsfehler zwischen Anode und Heizkathode kann mit einer Prüfspannung von > 500 V ermittelt werden.
Bei nachfolgenden Messungen Polarität beachten.
Measuring point
f plus Kühlkörper minus > 20 MΩ
FA plus Kühlkörper minus > 20 MΩ
Table 17: Widerstandswerte der Hochspannungs-Isolationsprüfung
1.
Polarität Measuring
point
High voltage! Measured voltage on the measuring instrument > 500 V!
Risk of injury due to electric shock and jolt.
► Handle test prods only on the insulation material. ► Do not touch component whilst the measurement is being
taken.
► Switch off the measuring instrument immediately after
taking the measurement.
Polarität Status
Messgerät auf Schaltfläche „Safety Tests“ und dann auf COMP-Test stellen.
2. Gemessene Widerstandswerte mit Werten der Tabelle vergleichen.
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5.11 Measuring microwave output power
Required tools:
? Example: ? Digital multimeter [ 00340044] ? Liquid temperature sensor [ 00341510] ? Adapter [ 00340948] ? Temperature-resistant measuring bowl [ 00342042] ? 1 l cold water
Prerequisite:
• Appliance has been disconnected from the mains for 30 seconds.
• Cooling fan does not run in standby operation.
1. Fill the temperature-resistant bowl with 1 l cold water.
2. 1) Stir the water before measuring the temperature!
2) Determine the initial temperature of the water (TA).
3. Place the temperature-resistant measuring bowl (with water) into the centre of the cooking compartment.
4. Heat the water up for one minute at the maximum power setting.
5. 1) Stir the water before measuring the temperature!
2) Determine end temperature of the water (TE).
6. Calculate temperature difference (TE - TA).
7. 1) Calculate microwave output power.
2) Temperature difference x 70 + 200 = Microwave output power P Result:
The calculated microwave output power must be higher than or equal to the set microwave output.
.
Example for a setting of 1000 W:
• 12 (T
• 11 (T
) x 70 + 200 = 1040 → Output OK
E-A
) x 70 + 200 = 970 → Output not OK
E-A
Aus
[watts]
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5.12 Checking that the cookware is suitable for
microwave use
The microwave output is not only converted into heat by the food itself, but also by the cookware. How much of the microwave output is converted into heat by the cookware depends on the cookware's material and structure.
Material Power consumption in [%]
Plastic Approx. 3 Glass Approx. 7 Glass ceramic part Approx. 12 Ceramic Approx. 18
Table 18: Consumption of microwave output (as a percentage) by conventional
cookware materials
Material Suitable
Plastic (temperature-resistant) Yes Glass Yes Glass ceramic part Yes Ceramic Yes Porcelain Yes Metal No
Table 19: Suitable or unsuitable cookware material
Cookware with gold or silver ornamentation may only be used if it has been approved by the manufacturer for use in microwave appliances.
1. Place test cookware into the cooking compartment without food.
2. 1) Set the maximum microwave output.
2) Set duration to ½ minute.
3. Start the appliance.
4. After the time has elapsed, remove the cookware from the cooking compartment using a suitable means of heat protection.
5. Carefully test the temperature. Result: If the cookware is cold or slightly warm to the touch, it is suitable for microwave use. If the cookware is hot (especially on the base), it is unsuitable for microwave use.
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5.13 Neo-Inverter prüfen
Required tools:
? Appliance Tester (länderspezifisch) ? Digitalmultimeter (VC850K) [ 15000062] ? Prüfspitze schwarz [ 00340949] ? Prüfspitze rot [ 00340950]
5.13.1 Funktion des Neo-Inverters prüfen
Prerequisite:
• Appliance is disconnected from the power supply.
• Appliance has been removed. (Page 125)
• Upper section of the housing has been removed. (Page 121)
• Magnetron-Abdeckung ist abgebaut. (Page 158)
1. 2-poligen Hochspannungsstecker von CN703 abstecken.
2.
Risk of electric shock due to live parts when performing tests on an energised system!
► For tests on an energised system, use a residual current
circuit breaker.
► Do not touch the housing, frame, components and cables.
Gerät an Strommessgerät anschließen.
3. Kundendienstprüfprogramm Microwave Test starten. Result: Nach etwa 24 Sekunden stoppt das Gerät und zeigt die Fehlermeldung F1007 (alt H98, alt E142) an. Die Stromaufnahme muss dabei 0.5 A bis 1 A sein.
Fig. 45: Messpunkte am Neo-Inverter
1 Q701 (IGBT) Emitter 5 DB701 (Brückengleichrichter) Netz 2 Q701 (IGBT) Collector 6 DB701 (Brückengleichrichter) Netz 3 Q701 (IGBT) Gate 7 DB701 (Brückengleichrichter) Kathode 4 DB701 (Brückengleichrichter) Anode
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4. Disconnect the appliance from the power supply.
5. 3-poligen Stecker von CN701abstecken (Stecker CN703 bleibt abgesteckt.).
Test
6.
Risk of electric shock due to live parts when performing tests on an energised system!
► For tests on an energised system, use a residual current
circuit breaker.
► Do not touch the housing, frame, components and cables.
Gerät an Strommessgerät anschließen.
7. Kundendienstprüfprogramm Microwave Test starten. Result: Nach etwa 3 Sekunden stoppt das Gerät und zeigt die Fehlermeldung F1007 (alt H95, alt E138) an. Die Stromaufnahme muss dabei < 0.4 A sein.
Inverter ist ohne Fehler!
5.13.2 Neo-Inverter visuell prüfen
Prerequisite:
• Appliance is disconnected from the power supply.
• Neo-Inverter ist ausgebaut. (Page 159)
1. Leiterbahnen und Bauteile visuell auf Brandflecken prüfen.
2. Leiterbahnen visuell auf Unterbrechung prüfen.
3. Alle Anschlusskontakte visuell auf Beschädigungen prüfen.
5.13.3 Widerstände des Bipolartransitors (IGBT) Q701
messen
Measur­ing point
1 - Emitter plus 3 - Gate minus > 1 kΩ / O.L
2 - Collector plus 3 - Gate minus > 1 kΩ / O.L
1 - Emitter plus 2 - Collector minus > 1 kΩ / O.L 1 - Emitter minus 3 - Gate plus > 1 kΩ / O.L
2 - Collector minus 3 - Gate plus > 1 kΩ / O.L
1 - Emitter minus 2 - Collector plus > 1 kΩ / O.L
Table 20: Widerstandsmessungen am IGBT
1. Digitalmultimeter auf Widerstandsmessung stellen.
2. Widerstände entsprechend der Tabelle messen.
Polarität
Measur­ing point
Polarität Status
5.13.4 Dioden des Brückengleichrichters DB701 messen
Polarität bei nachfolgenden Messungen beachten.
Measur-
ing point 4 - Anode plus 7 - Kathode minus 0,439 V 4 - Anode minus 7 - Kathode plus O.L
5 - Netz plus 6 - Netz minus O.L 5 - Netz minus 6 - Netz plus O.L
Table 21: Diodenmessungen am Brückengleichrichter
1. Digitalmultimeter auf Diodenmessung stellen.
Polarität
Measur­ing point
Polarität Status
2. Dioden des Brückengleichrichters entsprechend der Tabelle messen.
Polarität bei nachfolgenden Messungen beachten.
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5.13.5 Widerstände der Hochspannungsdioden messen
Die Hochspannungsdiode kann nur mit einer Prüfspannung > 500 V geprüft werden.
Measur­ing point
Anode 1 plus Kathode 1 minus 0 Ω Anode 1 minus Kathode 1 plus >20 M Ω Anode 2 plus Kathode 2 minus 0 Ω Anode 2 minus Kathode 2 plus >20 M Ω
Table 22: Diodenmessung an Hochspannungsdiode
Polarität
Measur­ing point
Polarität Status
1.
High voltage! Measured voltage on the measuring instrument > 500 V!
Risk of injury due to electric shock and jolt.
► Handle test prods only on the insulation material. ► Do not touch component whilst the measurement is being
taken.
► Switch off the measuring instrument immediately after
taking the measurement.
Appliance Tester auf „Safety Tests“ und dann auf COMP-Test stellen.
2. Widerstände entsprechend der Tabelle messen.
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Test
5.14 Checking the position of the wall socket
The wall socket must either be located in the hatched area or else away from the installation space.
5.14.1 Check the position of the wall socket in the base unit.
► Check the position of the wall socket according to the drawing.
5.14.2 Check the position of the wall socket in the tall unit.
► Check the position of the wall socket according to the drawing.
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5.15 Checking the socket of the meat temperature sensor
Prerequisite:
• Meat temperature sensor has been checked. (Page 66)
• Meat temperature sensor is inserted.
1. Start the “Core Temp. Probe Test” program.
Result:
Connected (√)
2. Withdraw the meat temperature probe. Result:
Not connected (√)
3. Replace the defective socket or faulty electronics.
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5.16 Measuring the temperature of the operating surfaces for hot air at 220 °C
These measuring instructions only apply to appliances with a PTC sensor.
5.16.1 Measuring temperature
Required tools:
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element ? [ 00341918] - Thermal element adapter for connection of thermal element type
K to appliance tester or digital multimeter
? [ 00341176] - Thermometer GTH1170 ? [ 00340961] - Surface temperature sensor ? Standard: ? [ 00341480] to [ 00341489] (country-specific) - appliance testers ? Alternative: ? [ 00340944] - Digital multimeter with software DIMM-Easy ? [ 00341312] - USB adapter
Prerequisite:
• Oven is empty.
• Oven is at room temperature.
1. Position the measuring sensor in the geometric centre of the cooking compartment with the retaining clip (shelf position 3) (bead must not touch the wire rack).
Fig. 46: Temperature curve for appliances with a PTC sensor
°C Temperature Temperature in the cooking
t minutes
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compartment
Test
2. Connect the measuring devices.
3. Set operation mode 4D hot air or hot air with 220 °C.
4. Start operation mode.
5. Let the cooking compartment heat up for 60 minutes.
6. Measure the cooking compartment temperature after 60 minutes.
7. Continuously monitor the cooking compartment temperature with subsequent measurement (must not fall below 220 °C).
8. Measure the room temperature and make a note of it.
9. Measure the temperature of the controls (for example turning handles, handle area of the door handles, buttons etc.) with surface temperature sensor. Result: The measured temperature must not exceed the following limit values:
- Room temperature + 35 K for metal
- Room temperature + 45 K for porcelain
- Room temperature + 60 K for plastic (> 0.3 mm)
5.16.2 Documenting the measured temperature
1. Enter the measured temperatures and measurement conditions on the RAS.
2. If an eFSB is created for unclear temperature curves, always print out the graph and attach it to the eFSB.
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Test
5.17 Measuring the temperature of the operating surfaces for pyrolysis level 3
These measuring instructions only apply to appliances with a PTC sensor.
5.17.1 Measuring temperature
Required tools:
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element ? [ 00341918] - Thermal element adapter for connection of thermal element type
K to appliance tester or digital multimeter
? [ 00341176] - Thermometer GTH1170 ? [ 00340961] - Surface temperature sensor ? [ 00740766] - "Grate to be sacrificed" ? Standard: ? [ 00341480] to [ 00341489] (country-specific) - appliance testers ? Alternative: ? [ 00340944] - Digital multimeter with software DIMM-Easy ? [ 00341312] - USB adapter
Prerequisite:
• Oven is empty.
• Oven is at room temperature.
• Non-enamelled accessories have been removed from the cooking compartment.
1. Insert „grate to be sacrificed" into the cooking compartment.
Fig. 47: Temperature curve for appliances with a PTC sensor
°C Temperature Measured with copper plates t minutes Measured with bead
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Test
2. Position the measuring sensor in the geometric centre of the cooking compartment with the retaining clip (shelf position 3) (bead sensor must not touch the wire rack).
3. Connect measuring device.
4. Set pyrolysis operation mode with the highest level.
5. Start operation mode.
6. Let pyrolysis run.
7. Measure the cooking compartment temperature at the end of the pyrolysis operating time (before the cooling phase).
8. Measure the room temperature and make a note of it.
9. Measure the temperature of the controls (for example turning handles, handle area of the door handles, buttons etc.) with surface temperature sensor. Result: The measured temperature must not exceed the following limit values:
- Room temperature + 55 K for metal
- Room temperature + 65 K for porcelain
- Room temperature + 80 K for plastic (> 0.3 mm)
5.17.2 Documenting the measured temperature
1. Enter the measured temperatures and measurement conditions on the RAS.
2. If an eFSB is created for unclear temperature curves, always print out the graph and attach it to the eFSB.
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Test
5.18 Measuring the temperature of the operating surfaces for grilling level 3
These measuring instructions only apply to appliances with a PTC sensor.
5.18.1 Measuring temperature
Required tools:
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element ? [ 00341918] - Thermal element adapter for connection of thermal element type
K to appliance tester or digital multimeter
? [ 00341176] - Thermometer GTH1170 ? [ 00340961] - Surface temperature sensor ? Standard: ? [ 00341480] to [ 00341489] (country-specific) - appliance testers ? Alternative: ? [ 00340944] - Digital multimeter with software DIMM-Easy ? [ 00341312] - USB adapter
Prerequisite:
• Oven is empty.
• Oven is at room temperature.
1. Position the measuring sensor in the geometric centre of the cooking compartment with the retaining clip (shelf position 3) (bead must not touch the wire rack).
Fig. 48: Temperature curve for appliances with a PTC sensor
°C Temperature Upper limit t minutes Temperature in the cooking
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compartment
Lower limit
Test
2. Connect the measuring devices.
3. Set the grill operation mode at the maximum level.
4. Start operation mode.
5. Let the cooking compartment heat up for 30 minutes.
6. Measure the cooking compartment temperature after 30 minutes and make a note of it.
7. Measure the room temperature and make a note of it.
8. Measure the temperature of the controls (for example turning handles, handle area of the door handles, buttons etc.) with surface temperature sensor.
Result: The measured temperature must not exceed the following limit values:
- Room temperature + 35 K for metal
- Room temperature + 45 K for porcelain
- Room temperature + 60 K plastic (> 0.3 mm)
5.18.2 Documenting the measured temperature
1. Enter the measured temperatures and measurement conditions on the RAS.
2. If an eFSB is created for unclear temperature curves, always print out the
graph and attach it to the eFSB.
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Test
5.19 Measuring the temperature of the appliance
surfaces for hot air at 200 °C
These measuring instructions only apply to appliances with a PTC sensor.
5.19.1 Measuring temperature
Required tools:
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element ? [ 00341918] - Thermal element adapter for connection of thermal element type
K to appliance tester or digital multimeter
? [ 00341176] - Thermometer GTH1170 ? [ 00340961] - Surface temperature sensor ? Standard: ? [ 00341480] to [ 00341489] (country-specific) - appliance testers ? Alternative: ? [ 00340944] - Digital multimeter with software DIMM-Easy ? [ 00341312] - USB adapter
Prerequisite:
• Oven is empty.
• Oven is at room temperature.
1. Position the measuring sensor in the geometric centre of the cooking compartment with the retaining clip (shelf position 3) (bead must not touch the wire rack).
Fig. 49: Temperature curve for appliances with a PTC sensor
°C Temperature Upper limit t minutes Temperature in the cooking
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compartment
Lower limit
Test
2. Connect measuring device.
3. Set operation mode 4D hot air or hot air at 200 °C.
4. Start operation mode.
5. Let the cooking compartment heat up for 60 minutes.
6. Measure the cooking compartment temperature after 60 minutes.
7. Continuously monitor the cooking compartment temperature with subsequent measurement (must not fall below 200 °C).
8. Measure the room temperature and make a note of it.
9.
Measure the temperature of the appliance surfaces with the surface temperature sensor.
Exceptions are:
• Controls (switches, door handle, buttons, knobs etc.)
• Ventilation openings
• Surfaces of cookers that are within 25 mm above or below the cooking level.
• Surfaces which cannot be touched using a testing tip with a diameter of 75 mm and semi-spherical end (around the door handle, between knobs etc.)
• Surfaces on the cooking compartment door which are within 1 cm of the edge towards the centre and around the door handle.
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Test
Result: The measured temperature must not exceed the following limit values:
Under the worktop and at the door panel:
- Room temperature + 40 K for metal
- Room temperature + 45 K for coated metal (e.g. paint, enamel)
- Room temperature + 55 K for glass
- Room temperature + 60 K for plastic (> 0.3 mm)
Above the worktop:
- Room temperature + 45 K for metal
- Room temperature + 55 K for coated metal (e.g. paint, enamel)
- Room temperature + 60 K for glass
- Room temperature + 65 K for plastic (> 0.3 mm)
5.19.2 Documenting the measured temperature
1. Enter the measured temperatures and measurement conditions on the RAS.
2. If an eFSB is created for unclear temperature curves, always print out the
graph and attach it to the eFSB.
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Test
5.20 Measuring the temperature of the appliance surfaces for pyrolysis level 3
These measuring instructions only apply to appliances with a PTC sensor.
5.20.1 Measuring temperature
Required tools:
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element ? [ 00341918] - Thermal element adapter for connection of thermal element type
K to appliance tester or digital multimeter
? [ 00341176] - Thermometer GTH1170 ? [ 00340961] - Surface temperature sensor ? [ 00740766] - "Grate to be sacrificed" ? Standard: ? [ 00341480] to [ 00341489] (country-specific) - appliance testers ? Alternative: ? [ 00340944] - Digital multimeter with software DIMM-Easy ? [ 00341312] - USB adapter
Prerequisite:
• Oven is empty.
• Oven is at room temperature.
• Non-enamelled accessories have been removed from the cooking compartment.
1. Insert „grate to be sacrificed" into the cooking compartment.
Fig. 50: Temperature curve for appliances with a PTC sensor
°C Temperature Measured with copper plates t minutes Measured with bead
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Test
2. Position the measuring sensor in the geometric centre of the cooking compartment with the retaining clip (shelf position 3) (bead must not touch the wire rack).
3. Connect measuring device.
4. Set pyrolysis operation mode with the highest level.
9.
Measure the temperature of the appliance surfaces with the surface temperature sensor.
Exceptions are:
• Controls (switches, door handle, buttons, knobs etc.)
• Ventilation openings
• Surfaces of cookers that are within 25 mm above or below the cooking level.
• Surfaces which cannot be touched using a testing tip with a diameter of 75 mm and semi-spherical end (around the door handle, between knobs etc.)
• Surfaces on the cooking compartment door which are within 10 mm of the edge towards the centre and around the door handle.
5. Start operation mode.
6. Let the pyrolysis cycle run.
7. Measure the cooking compartment temperature at the end of the pyrolysis operating time (before the cooling phase).
8. Measure the room temperature and make a note of it.
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Test
Result: The measured temperature must not exceed the following limit values:
Under the worktop and at the door panel:
- Room temperature + 40 K for metal
- Room temperature + 45 K for coated metal (e.g. paint, enamel)
- Room temperature + 55 K for glass
- Room temperature + 60 K for plastic (> 0.3 mm)
Above the worktop:
- Room temperature + 45 K for metal
- Room temperature + 55 K for coated metal (e.g. paint, enamel)
- Room temperature + 60 K for glass
- Room temperature + 65 K for plastic (> 0.3 mm)
5.20.2 Documenting the measured temperature
1. Enter the measured temperatures and measurement conditions on the RAS.
2. If an eFSB is created for unclear temperature curves, always print out the
graph and attach it to the eFSB.
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Test
5.21 Measuring the temperature of the furniture
surfaces for hot air at 220 °C
These measuring instructions only apply to appliances with a PTC sensor.
5.21.1 Measuring temperature
Required tools:
? [ 00340959] - Oven thermal element type K (with simple welding bead) ? [ 00340955] - Retaining clip for thermal oven element ? [ 00341918] - Thermal element adapter for connection of thermal element type
K to appliance tester or digital multimeter
? [ 00341176] - Thermometer GTH1170 ? [ 00340961] - Surface temperature sensor ? Standard: ? [ 00341480] to [ 00341489] (country-specific) - appliance testers ? Alternative: ? [ 00340944] - Digital multimeter with software DIMM-Easy ? [ 00341312] - USB adapter
Prerequisite:
• Oven is empty.
• Oven is at room temperature.
1. Position the measuring sensor in the geometric centre of the cooking compartment with the retaining clip (shelf position 3) (bead must not touch the wire rack).
Fig. 51: Temperature curve for appliances with a PTC sensor
°C Temperature Cooking compartment temperature t minutes
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