Hotpoint FDM550P, FDM550P.R, FDM554P, FDM554P.R Service Information
Indesit Company UK Ltd
© 2010 Reg. Office: Peterborough PE2 9JB Registered in London: 106725
Service
Information
Hotpoint
Freestanding
DISHWASHER
Model Covered
Hotpoint
Italian manufacture
FDM550P 54445
FDM554P 63569
Polish manufacture
FDM550P.R 56396
FDM554P.R 64674
5407485 Issue 3 June 2010
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Service Manual UK
Indesit Company
English
SAFETY NOTES & GENERAL SERVICING ADVICE
1. This manual is NOT intended as a comprehensive repair/maintenance guide to the appliance.
2. It should ONLY be used by suitably qualified persons having technical competence applicable
product knowledge and suitable tools and test equipment.
3. Servicing of electrical appliances must be undertaken with the appliance disconnected (unplugged)
from the electrical supply.
4. Servicing must be preceded by Earth Continuity and Insulation Resistance checks.
5. Personal safety precautions must be taken to protect against accidents caused by sharp edges on
metal and plastic parts.
6. After Servicing the appliance must be rechecked for Electrical Safety. In the case of appliances which
are connected to a water supply (i.e.: Washing Machines, Dishwashers & Food Centres etc.) checks
must be made for leaks from seals gaskets and pipe work and rectification carried out where
necessary.
7. It can be dangerous to attempt ‘DIY’ repairs / maintenance on complex equipment and the Company
recommends that any problem with the appliance is referred to its own Service Organisation.
8. Whilst the Company has endeavoured to ensure the accuracy of the data within this publication they
cannot hold themselves responsible for any inconvenience or loss occasioned by any error within.
INDEX
Safety Notes & General Servicing Advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Console Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Programme Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7
Setting the Water Hardness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Component Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 13
Fault Codes & Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 19
Wiring Diagram - models fitted with DEA601 Power Module . . . . . . . . . . . . . . . . . . . . . . 20
Wiring Diagram - models fitted with DEA602 Power Module . . . . . . . . . . . . . . . . . . . . . . 21
Power Module photo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Module Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 - 24
Dismantling Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 30
General Dishwashing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 - 34
Production Changes
DEA602 Power Module Introduced:
FDM550P.R - from Serial Number 91231.9999
FDM554P.R - from Serial Number 91023.9999
Standby Function Added:
All Models from March 2010
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TECHNICAL SPECIFICATIONS
Models FDM550P - 54445 - White
FDM554P - 63569 - White
FDM550P.R - 56396 - White
FDM554P.R - 64674 - White
Energy Class A
Washing Class A
Drying Class A
Noise Level 51dB
Country of Origin FDM550P - FDM5504P:- Italy
FDM550P.R - FDM554P.R:- Poland
Dimensions Height 850 mm
Width 595 mm
Depth 570 mm
Weight 43 Kg
Capacity 12 place settings - FDM550P + FDM550P.R
14 place settings - FDM554P + FDM5540.R
Electrical Supply 230/240 Volts AC @ 50Hz
Energy Consumption Standard Cycle: 1.08kW/h
Water Consumption Standard Cycle: 15 litres
Drying Residual Heat Drying (Natural)
Controls Electronic DEA 601 with soldered EEPROM - see Production changes
or Electronic DEA 602 with soldered EEPROM - see Production changes
Tub Stainless Steel
Heater type Flow through type with built in safety cut out and fuse
Heater Wattage 1.8 kW @ 230V AC
Heater Resistance 29.20Ω
Circulation Motor Synchronous Motor
Motor RPM 2800
Motor Power Consumption 60 Watts
Detergent Dispenser Capacity 25g + 5g
Rinse Aid Dispenser Capacity 14 0ml
Fill Valve Resistance 3.72KΩ approx.
Water Pressure 0.56 bar (Max 10 bar)
Regeneration Valve 4.1KΩ approx.
Drain Pump Plaset Motor Synchronous
Motor Winding Resistance: 216Ω + or - 7%
Power Consumption: 26 Watts
Thermistor Sump Mounted
Wash Programmes 5 - Intensive, Normal, Prewash, Eco, Fast Wash
Wash Temperatures 45°C, 52°C, 48°C, 63°C
Salt Refill Indicator LED on console
Rinse Aid Indicator LED on console
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GENERAL INFORMATION
This model is a freestanding front loading dishwasher providing a choice of 5 wash programmes to
suit load requirements.
The Programme Selector, Option buttons and LED indicators are mounted on the front panel.
There are "Low" warning LED’s mounted on the Console for Salt and Rinse Aid.
Water hardness is adjusted by the user before the machine is first used.
Levelling the Dishwasher
There are 2 adjustable feet at the front.
There are 2 solid moulded sliders at the rear.
The dishwasher must be level to prevent distortion of the cabinet and poor closing of the door.
Dishwasher seen from underneath.
Adjustable Feet
Non-adjustable
sliders
Front
Rear
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CONSOLE PANEL
ON-OFF/RESET BUTTON
Press this button to switch the appliance on.
To Re-set a programme that requires cancelling press and hold down the On-Off button.
ON-OFF INDICATOR LAMP
This Lamp shows that the Dishwasher is Switched on.
START/PAUSE BUTTON
Once the Programme and Options required have been selected. Pushing this button once will
start the selected Programme.
During a Programme if this button is pushed the Cycle will stop until the button is pushed
again, when the cycle will continue.
START/PAUSE INDICATOR LAMP
STAND-BY
When the cycle has completed the programme, 10 minutes after the door is opened the machine will
go into stand-by. The LEDs will turn off.
Push the On/Off button to remove the machine from stand-by mode.
Lamp States
1. Lamp FlashingWaiting for a Cycle to be selected
and Started
2. Lamp Green and On,Programme in progress
WASH CYCLE SELECTOR
Used to select the required Wash Programme
PROGRESS LAMPS
These lamps show the Delayed Time set, if this Option
has been selected and during a Cycle, Programme
progress.
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PROGRAMME GUIDE
Notes:
1. Optimum performance levels when using Quick cycle can be achieved by observing the
maximum amounts of crockery specified.
2. * The Eco wash cycle adheres to the regulation EN-50242.
Although it has a longer duration than other wash cycles it uses less energy and is less harmful
to the environment.
3. To make it easier to measure out the detergent, it is worth remembering that:
1 tablespoon = 15 grams of powder = approximately 15 ml of liquid
1 teaspoon = 5 grams of powder = approximately 5 ml of liquid
The number and type of wash cycles and options may vary depending on the dishwasher model.
Detergent
(A) = compartment A
(B) = compartment B
Wash cycle selection
instructions
Wash cycle
Powder Liquid Tablets
Wash
cycles
which
include
drying
Wash cycle
duration
(tolerance
±10%)
Hrs. Min.
Heavily soiled dishes and
pans (not to be used for
delicate items).
Intensive
35 g (A) 35 ml (A) 1 (A)
Yes 2:15’
Normally soiled pans and
dishes. Standard daily wash
cycle.
Normal
29 g (A)
6 g (B)
29 ml (A)
6 ml (B)
1 (A) Yes 1:45’
Pre-wash for dishes while
awaiting completion of the
load with the dishes from the
next meal.
Prewash
No No No No 0:08’
Environmentally-friendly wash
cycle with low energy
consumption levels, suitable
for pans and dishes.
Eco
*
29 g (A)
6 g (B)
29 ml (A)
6 ml (B)
1 (A) Yes 2:35’
Economic and fast wash to
be used for lightly soiled
dishes. (Run cycle
immediately after use) (2
plates + 2 glasses + 4 pieces
of cutlery + 1 saucepan + 1
small frying pan).
Fast wash
25 g (A) 25 ml (A) 1 (A) No 0:35’
If the crockery is only lightly soiled or if it has been rinsed with water before being placed in the
dishwasher, reduce the amount of detergent used accordingly.
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Programme Cycle Sequences
Notes:
1. *The Eco wash cycle adheres to the regulation EN-50242.
Although it has a longer duration than other wash cycles it uses less energy and is less harmful
to the environment.
2. To make it easier to measure out the detergent, it is worth remembering that:
1 tablespoon = 15 grams of powder = approximately 15 ml of liquid.
1 teaspoon = 5 grams of powder = approximately 5 ml of liquid.
BASIC MACHINE USE
Note: Water Hardness MUST be set BEFORE first use or after module replacement.
Refer to following page
Setting a Programme
1. Turn the Machine On (On-Off Button). Start Pause Button Flashes
2. Turn the Wash Cycle Select Knob to the desired Programme.
3. Press the Start Button. The lamp will stop flashing and stay per manently On.
Cancelling a Programme in progress
Press and Hold the ON/OFF BUTTON. All Leds will turn off
End of Programme
The END programme progress lamp will illuminate.
Salt and Rinse Aid Lamps Flashing together
If the salt and rinse aid warning lights flash as well as 1 or more programme progress / delay
and Start lights the machine has a fault. See page 18.
Cycle
Pre-wash 1Pre-wash
2
Wash Rinse 1 Rinse 2
Warm
Rinse
Drying
WITH
water
Drying
WITHOUT
water
INTENSIVE 45°C n/a 63°C Cold Cold 70°C 15 mins 20 mins
NORMAL Cold n/a 52°C Cold n/a 70°C 18 mins 8 mins
PREWASH Cold n/a n/a n/a n/a n/a n/a n/a
ECO* Cold Cold 48°C n/a n/a 70°C 10 mins 40 mins
FAST WASH n/a n/a 50°C Cold n/a n/a n/a n/a
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SETTING THE WATER HARDNESS
These models have 5 Water Hardness Settings to allow for the water supply where the machine is
located.
The Water Hardness Setting must be set:
- before the machine is used for the first time (the factory default setting is 3)
- if a new Module has been fitted or if the machine is moved to a different water area.
Use the Water Hardness Setting Table above to determine WATER HARDNESS then follow the
following procedure to set the machine to the required Water Hardness.
Note: If the correct Water Hardness Setting is not set, reliability and performance could be
affected.
1. Connect the machine to the mains power supply and
make sure that the power is On.
2. Ensure that the dishwasher is switched Off
(connected to the mains but switched Off at the
console).
3. Close the dishwasher Door and Set the Selector knob
to position 3 (see Fig.1 above).
4. Open the dishwasher Door. (this starts the sequence)
5. Perform the following sequence - see Fig 2
a. Rotate the Selector to position 5
b. Rotate the Selector to position 1
c. Rotate the Selector to position 5 again
d. Switch the machine ON at the console.
e. The Program Progress Lamps should now be Flashing.
f. Rotate the Selector (within 10 seconds) to the required hardness setting (refer to chart
above.) If setting 5 is required, leave the selector at position 5 until the lights stop flashing.
When the lights stop flashing, the setting will be taken from where the selector was positioned.
Note. It is important all steps are carried out with pausing, otherwise the machine will reset to
previous or default setting when the lights stop flashing.
If you fail to complete the sequence within the required time, switch the dishwasher OFF at the
power source and start again from step 1.
Once set, the setting will be remembered even if the power is turned off.
1
2
3
4
5
Fig.1
Water hardness setting table:
Hardness
(Clarke)
Set Hardness
0 - 7 1
7.7 - 14 2
14.7 - 21 3
21.7 - 42 4
42.7 - 63 5
1
2
3
4
5
Fig.2
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COMPONENT DESCRIPTION
DEA Power Module
Mounted behind the plinth, this is an e lectronic device th at monitors and c ontrols all dev ices within
the appliance. If replacing this modul e, refer to the Mod ule Programming se ction on in this manual.
DEA601 Module
Fitted from first production to:
FDM554P.R before Serial number 91023.9999, FDM550P.R before Serial number 91231.9999).
DEA602 Module
Used in production - FDM554P.R from Seri al number 91024.0000, FDM550P.R from Serial number
00101.0000).
The pressure and door switches and associated wiring are Low voltage (12 Volts and 10mA) with
RAST 2.5 connector.
Pressure Switch
The pressure switch controls the overall volume of water inside the tub and signals if the heater can
be turned on. Different types of switch may be fitted depending on which type of Power modue is
fitted.
DEA601 Pressure Switch
Pressure Switch fitted to models with DEA601 module
(FDM554P.R before Serial number 91023.9999, FDM550P.R
before Serial number 91231.9999)
The pressure switch indicates the empty state only (full level not
reached). Full level is signalled when the pressure switch is not
signalling empty.
DEA602 Pressure Switch
Pressure switch fitted to models with DEA602 module
(FDM554P.R from Serial number 91024.0000, FDM550P.R from
Serial number 00101.0000)
The pressure switch and associated wiring is Low Voltage
(12 volts and 10 mA) with RAST 2.5 connector.
The pressure switch indicates the full stat e only (appli ance fill ed
with water).
Empty level is signalled when the pressure switch is not
signalling full.
Fill Valve
The appliance has an electromagneti cally operated solenoid valve, which is connected to the water
supply.
DEA601 Pressure Switch
DEA602 Pressure Switch
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Water Turbine
This is situated at the bottom of the Air Break. Consisting of a fixed reed switch and a magnet fitted
to an impeller. Unlike previous control systems, water fill is no longer dependant on the operation of
the pressure switch. The turbine generates a series of impulses as the water rotates the impeller
vanes.
The control module translates these impulses into litres of fill water (217 impulses is equal to 1 litre
of water). The turbine also regulates the maximum amount of water that can enter the tub, therefore
acting as an overflow device.
Anti Flood Device
Consisting of a polystyrene float and microswitch. An excess of water in the base panel operates the
float switch sending a signal to the control module operating the drain pump and displaying a fault
code on the console.
Filling Sequence
1. Static Fill of 2.5 litres measured by the Fill Turbine.
2. The module checks the state of the Pressure Switch
- if Pressure Switch reaches Full Position - Move to step 3.
- if Pressure Switch at Empty Position - then Pressure Switch Fault Code displays.
3. Dynamic Fill up to 4 litres measured by Fill Turbine.
4. The module checks state of the Pressure Switch.
- if Pressure Switch Full Position reached - Programme Continues to Wash.
- if Pressure Switch at Empty Position, fills with a maximum of 5.5 litres of wate r measured
by Fill Turbine.
If the Pressure Switch is still in the Empty Position, the machine will drain and continues
with the cycle. No Fault Code is displayed.
The Water Level in normal conditions is almost up to the top of the filter.
Key: Static Fill = Fill with Wash Pump Off
Dynamic Fill = Fill with Wash Pump On
Detergent & Rinse Aid Dispenser
Detergent and rinse aid is automatically released during the programme.
The release mechanism is activated by means of a solenoid. This in turn operates a plunger and
lever assembly, thus releasing detergent or rinse aid as required.
The dispenser incorporates a single solenoid.
Providing the dispenser lid is closed before use:> The 1st time solenoid is energised the detergent lid opens (powder or tablet);
> The 2nd time solenoid is energised rinse aid is dispensed.
Note:
Rinse Aid is injected into the machine when the dispenser solenoid is energised and the
detergent lid open.
Drain Pump
This is a separate unit fixed to the sump moulding. It is operated by means of a synchronous motor
and is controlled by the control module.
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Heater
The heater is encased in a metal housing with integral safety cut-out and fuse. It connects to the
Circulating Wash pump housing via a bayonet fitting. Refer to the Circulating Wash Pump description.
Circulating Wash Pump
The motor used is a synchronous motor. The pump housing is connected to the water dispenser,
which feeds the lower and upper spray arms.
Thermistor
Situated on the sump. A temperature rise in the water is converted to a changing resistance value.
A rise in temperature will give a lower resistance across the terminals of the thermistor; the control
module monitors this value and when it is the same as that as defined in the programme selected,
the module will advance the programme out of the heating stage.
Regeneration Procedure
Unlike previous models Regeneration is not carried out during every wash. The Control Module
counts the number of Litres used since the last Regeneration.
The volume of water (in Litres) used between Regeneration is dependant upon the Water Hardness
Setting stored in the Control Module. (Refer to "Setting the Water Hardness"). See Chart below.
Regeneration Sequence
1. Regeneration valve activated, after 2 seconds, the fill inlet solenoid is opened to allow water
flow, water flows from the inlet through the salt and the mixture of water and salt reaches the
resins.
2. Solenoid valve closes (the inlet valve and after 2 seconds the regeneration valve)
3. Pause for 10 minutes
4. Fill with 190cc of water. (same procedure as step 1.)
5. 5 minutes pause
Circulation Wash Pump Assembly
Water Dispenser
Water Hardness Setting Regenerates Every...
No water is stored for Regeneration and
regeneration will always take place at
the end of last rinse, after the number of
litres has been achieved.
1 150 litres
2 100 litres
3 65 litres
4 30 litres
5 15 litres
Heater Assembly Pump Motor
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