Indicates a hazardous situation that, if not avoided, will
result in death or serious injury. This applies to the most
extreme situations.
Warning
n
Indicates a hazardous situation that, if not avoided,
could result in death or serious injury.
Caution
,
Indicates a hazardous situation that, if not avoided,
could result in minor or moderate injury.
Notice
Indicates information considered important, but not
hazard-related (e.g. messages relating to property
damage).
NOTE: Indicates useful, extra information about the
procedure you are performing.
Read These Before Proceeding:
DANGER
Do not install or operate equipment that has been
misused, abused, neglected, damaged, or altered/
modified from that of original manufactured
specifications.
Important
Read these instructions for use carefully so as to
familiarize yourself with the appliance before connecting
it to its gas container. Keep these instrucions for future
reference.
Warning
n
Improper installation adjustment, alteration, service
or maintenance can cause property damage, injury or
death. Read the installation, operating and maintenance
instructions thoroughly before installing or servicing
this equipment.
Warning
n
Authorized Service Representatives are obligated to
follow industry standard safety procedures, including,
but not limited to, local/national regulations for
disconnection / lock out / tag out procedures for all
utilities including electric, gas, water and steam.
Warning
n
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
concerning use of the appliance by a person responsible
for their safety. Do not allow children to play with this
appliance.
Warning
n
This equipment is intended for indoor use only. Do not
install or operate this equipment in outdoor areas.
Warning
n
Do not use electrical appliances or accessories other
than those supplied by the manufacturer.
FOR YOUR SAFETY
Do Not Store Or Use Gasoline Or Other Flammable
Vapors Or Liquids In The Vicinity Of This Or Any Other
Appliance.
Warning
n
Never use a high-pressure water jet for cleaning or hose
down or flood interior or exterior of units with water. Do
not use power cleaning equipment, steel wool, scrapers
or wire brushes on stainless steel or painted surfaces.
Caution
,
Maintenance and servicing work other than cleaning as
described in this manual must be done by authorized
service personnel.
Caution
,
Improper cleaning of oven could damage catalyst(s) in
ventless models and will void unit warranty.
NOTE: Proper installation, care and maintenance are essential
for maximum performance and trouble-free operation of
your equipment. Visit our website www.wbtkitchencare.com
for manual updates, translations, or contact information for
service agents in your area.
ECE & RoHS compliance combined
UUS & Canada compliance only
AAdvantage style oven
BAustralia AGA
OLD MODEL NUMBERS EXAMPLES
Please note that the model numbering system changed
March 2007. The chart below shows the old model
numbering system and its matching new model number.
Gas and electrical services for the Models 1116 and 1117 should be located as shown below. If flexible services are provided,
they must meet code requirements for such installation.
17-1/2"
(444 mm)
62"
(1575 mm)
35-3/4"
(908 mm)
27"
(686 mm)
30-1/2"
(775 mm)
39-5/8"
(1006 mm)
44-1/2"
(1130 mm)
48"
(1219 mm)
Side view of two Impinger® II Gas Ovens showing Gas
Valve Installation point and piping spacing.
57-1/8"
(1451 mm)
17-1/2"
(444 mm)
62"
(1575 mm)
17-1/2"
(444 mm)
18-1/4"
(464 mm)
9-1/2"
(241 mm)
13"
(330 mm)
22"
(559 mm)
30-1/2"
(775 mm)
39-1/2"
(1003 mm)
48"
(1219 mm)
Side view of three Impinger® II Gas Ovens showing Gas
Valve Installation point and piping spacing.
Purchaser’s Responsibility:
It is the responsibility of the purchaser:
1. To see that the gas and electric services for the oven are installed on site in accordance with the
manufacturer’sspecification.
2. To unload, uncrate, and install the oven in its proper location; in accordance with this service manual.
3. To see that the gas and electric services are connected properly by a qualified installer of your choice. For installation
in the State of Massachusetts: Installation of this oven must be performed by a licensed plumber or gas fitter. All such
connections must be in accordance with applicable code requirements.
4. Arrange for inspection and operation check-out by an Authorized Service Technician. Do not attempt to operate
the oven until connection of utility service has been fully inspected by a Factory Authorized Servicer or a Lincoln
Foodservice Products, LLC Service Representative. This service is required by LincolnFoodservice Products, LLC in order
to assist the purchaser in proper start-up of the oven on site. Please note the specific details on the Warranty and make
certain connections are made to proper utility services.The warranty shall not apply if the oven(s) are started up and
operated prior to the utilities and oven being inspected and check-out made by a Factory Authorized Servicer or a
Lincoln Foodservice Products, LLC Service Representative.
Sequence of Operation – Impinger II Domestic Advantage Digital, Gas
S/N: 2038616 to S/N: 2106100101444 (Ovens with push button controls)
Old Model Number
1116-080-A (or A1)
1116-062-8A
1116-023-A
1117-080-A (or A1)
1117-023-A
POWER SUPPLYElectrical power is supplied to the oven by a three-conductor cord set.
Voltage from the black conductor to the white conductor is 120VAC.
Black conductor is hot.
White conductor is neutral.
Green conductor is ground.
CONTROL BOX AUTO
COOL DOWN
MAIN FAN CIRCUITPower is permanently supplied, through a 10 amp fuse, to the normally open main power switch. Power is
BURNER CIRCUITClosing the main power switch supplies 120VAC to the burner blower motor. 120VAC is also supplied,
IGNITION CONTROLThe ignition control operates on both 24VAC and 120VAC. When the control is energized by 24VAC from
TEMPERATURE CONTROL Closing the oven power switch supplies line voltage, through the 10A fuse, through the oven power relay,
CONVEYOR DRIVEClosing the oven power switch supplies line voltage, through the 10A fuse, through the oven power relay to
When the temperature in the control boxes reaches 120°F ±3° (49°C ± 1.7°), the cooling fan thermostat
will switch power to the cooling fans. The thermostat will interrupt power to the cooling fans when the
temperature falls to 100°F ± 3° (37°C ± 1.7°).
also supplied to the normally open cooling fan thermostat. Closing the main power switch supplies 120VAC
to the main fan motor, the cooling fan motors, the primary of the control transformer, the conveyor motor
and to the ignition control.
through the main fan centrifugal switch (this switch closes when the main fan reaches approx. 1600 RPM)
and the normally closed oven cavity hi-limit thermostat, to the primary of the burner transformer. 120VAC is
also supplied to the oven control.
the transformer, 120VAC is switched by the ignition control to the hot surface igniter for 45 seconds for the
hot surface igniter warm up. The igniter glows red, 24VAC is switched to the gas valve, which opens, and
ignition should now occur.
to the primary of the control transformer. 24VAC is supplied to the oven control. The oven control is set
to desired temperature. The right thermocouples will provide varying millivolts to the oven control. The
oven control supplies line voltage to the temperature regulation valve at intermittent intervals to maintain
desired temperature. The display on the oven control will indicate when the temperature regulation valve is
energized. NOTE: The display also indicates oven temperature of the oven.
the conveyor motor and to the primary of the control transformer. Secondary voltage, 24VAC, is supplied to
the oven control. Setting the oven control to the desired time outputs voltage, through a reversing switch,
to the conveyor motor. NOTE: The conveyor system uses a magnet and Hall Effect sensor to prove operation
of the conveyor motor. If the conveyor motor is not running, “BELT JAM” is indicated on the display.
Sequence of Operation – Impinger II Domestic 1116,1117 easyTouch, Gas
S/N: 2106100101445 and above (easyTouch controls)
Unit Plugged Into Power
• F1 fuse energized with L1
• Main Rocker Power Switch Input Energized with L1 and
Neutral. Green Light ON
Note: Green light will not be implemented with
first generation units
• Cooling Fan Thermostat energized with L1
• Blower Main and Cooling Fans energized with Neutral
Power Switch Turned ON
• Blower Main energized with L1
• Blower Burner energized with L1 and Neutral Power
• Cooling Fans energized with L1
• IO Board on-board SSR/Relay (COM) energized with L1
• High Heat Valve energized with Neutral Power
• Ignition Module L1 and L2 energized with L1 and
Neutral Power
• Cooling Fan Thermostat energized with L1
• Thermal capillary disc energized with L1
• Transformer energized with L1 and Neutral Power (If
both Thermal capillary disc and Blower Main centrifugal
switch are not tripped)
• Ignition Module input energized with 24VAC (If Blower
Burner centrifugal switch is not tripped)
• 24VDC Power Supply Energized with L1 and Neutral
Power
• DC 4A fuse Energized, which protects the DC
components: UI and IO board
• IO Board Energized
• IO Board boots up UI
• UI initiates with Welbilt BOOT screen
• UI Loads to Home Screen after small delay in time
• Optional Motor Drive Energized with 24VDC
• UI displays Recipes
• Recipe Selected
• Once Pre-Heating is complete, Recipe Mode is engaged
• Oven will maintain temperature set point
• Conveyor will turn on to recipe cook time speed
Chef Mode (Manual Mode) Selected
• Enter Temperature Set Point
• Enter Conveyor belt speed (min:sec)
• In this mode, temperature and motor speed values will
change automatically when on this screen, but these set
points can be saved into a recipe when the save button
is pressed
• Blower Main and Cooling Fans energized with Neutral
Power
Sequence of Operation – Impinger II International Advantage Digital, Gas
(Ovens with push button controls) S/N: 21111001007 and Below
Old Model Number
1154-000-EA
1154-080-EA
1154-V80-EA
1155-000-EA
1155-080-EA
1155-V80-EA
POWER SUPPLYElectrical power to be supplied to the oven by a three-conductor service.
CONTROL BOX AUTO
COOL DOWN
MAIN FAN CIRCUITPower is permanently supplied through a 10 amp oven fuse to the normally open double pole oven fan
BURNER CIRCUITClosing the oven fan switch supplies line voltage through the normally open air pressure switch (closed by
IGNITION CONTROLThe ignition control switches line voltage to the combustion blower motor. The combustion air pressure
TEMPERATURE CONTROL When the power supply is passed through the EMI Filter the load will supply line voltage to the primary
CONVEYOR DRIVEWhen the power supply is passed through the EMI Filter the load will supply line voltage to the primary of
When the temperature in the control box reaches 120°F ±3° (49°C ± 1.7°), the cooling fan thermostat
will switch power to the cooling fans. The thermostat will interrupt power to the cooling fans when the
temperature falls to 100°F ± 3° (37°C ± 1.7°).
switch. Closing the oven fan switch supplies line voltage to the main fan motor. Closing the main fan switch
also supplies voltage to the cooling fans and the EMI Filter to the primary of the control transformer, the
conveyor motor, and the burner system.
the air pressure from the main fan), through the normally closed oven cavity hi-limit thermostat (opens at
662°F, 350°C), and to the ignition control.
switch switches from normally closed to normally open upon sensing air pressure in the burner housing.
After a pre-purge period of between 30 and 60 seconds, the spark is energized, the main gas valve and the
burner pilot light are energized, and ignition should now occur.
of the control transformer. Secondary voltage, 24VAC, is supplied to the oven control. The oven control is
set to desired temperature. The thermocouple will provide varying millivolts to the oven control. The oven
control supplies line voltage to the temperature regulation valve at intermittent intervals to maintain the
desired temperature. The display on the oven control will indicate when the temperature regulation valve is
energized. NOTE: The display also indicates oven temperature.
the control transformer. Secondary voltage, 24VAC, is supplied to the oven control. Setting the oven control
to the desired time outputs voltage, through a reversing switch, to the conveyor motor.
NOTE: The conveyor system uses a Hall Effect sensor and magnet to prove operation of the conveyor motor.
If the conveyor motor is not running, “BELT JAM” is indicated on the display.
Sequence of Operation – Impinger II International 1154,1155 easyTouch Gas
S/N: 2111100101008 and above (easyTouch controls)
Unit Plugged Into Power
• F1 fuse energized with L1
• Main Rocker Power Switch Input Energized with L1 and
Neutral Power. Green Light ON
Note: Green light will not be implemented with
first generation units
• Cooling Fan Thermostat energized with L1
• Blower Main and Cooling Fans energized with Neutral
Power
Power Switch Turned ON
• Blower Main energized with L1
• Cooling Fans energized with L1
• IO Board on-board SSR/Relay (COM) energized with L1
• High Heat Valve energized with Neutral Power
• Cooling Fan Thermostat is energized with L1
• Air Pressure Switch Main energized with L1
• Thermal capillary disc is energized with L1 (If the air
pressure switch is not tripped)
• Ignition Module input energized with L1 and N (If APS1
and TH2 are not tripped). The Ignition Module provides
power to the Blower Burner and to Main Valve
• 24VDC Power Supply Energized with L1 and Neutral
Power
• DC 4A fuse Energized, which protects the DC
components: UI and IO board
• IO Board Energized
• IO Board boots up UI
• UI initiates with Welbilt BOOT screen
• UI Loads to Home Screen after small delay in time
• Optional Motor Drive Energized with 24VDC
Press and Go Selected
• UI displays Recipes
• Recipe Selected
• Once Pre-Heating is complete, Recipe Mode is engaged
• Oven will maintain temperature set point
• Conveyor will turn on to recipe cook time speed
Chef Mode (Manual Mode) Selected
• Enter Temperature Set Point
• Enter Conveyor belt speed (min:sec)
• In this mode, temperature and motor speed values will
change automatically when on this screen, but these set
points can be saved into a recipe when the save button
is pressed.
• Blower Main and Cooling Fans energized with Neutral
Power
Sequence of Operation – Impinger II International (Korea) 1157,1158 easyTouch, Gas
S/N: 2111100101008 and above (easyTouch controls)
Unit Plugged Into Power
• Power Failure Alarm Relay common terminals energized
with L1
• Power Failure Alarm Relay coil energized with Neutral
Power
• Push Button, Reset Alarm (PB2) energized with L1
• Alarm energized with L1 and Neutral Power
Unit plugged into power, PB2 pressed one time and no
power failure during machine operation
• After pressing Push Button, Reset Alarm one time, the
Power Failure Alarm Relay activates, bypassing PB2 and
disconnecting the alarm. The K1 coil will stay energized
unless there is a power failure
• F1 fuse energized with L1
• Main Rocker Power Switch input energized with L1 and
Neutral. The green light ON. Note: Green light will not be
implemented with first generation units.
• Cooling Fan Thermostat energized with L1
• Blower Main and Cooling Fans energized with Neutral
Power
Power Switch Turned ON
• Blower Main energized with L1
• Cooling Fans energized with L1
• IO Board on-board SSR/Relay energized with L1
• High Heat Valve energized with Neutral Power
• Cooling Fan Thermostat energized with L1
• Air Pressure Switch Main energized with L1
• Thermal capillary disc energized with L1 (If Air Pressure
Switch is not tripped).
• Ignition Module input energized with L1 and Neutral
Power (If Air Pressure Switch and Thermal capillary are
not tripped). The Ignition Module provides power to the
Blower Burner and to Main Valve
• 24VDC Power Supply is energized with L1 and Neutral
Power
• DC 4A fuse is energized, which protects the DC
components "UI and IO boards"
• IO Board energized
• IO Board boots up UI
• UI initiates with Welbilt BOOT screen
• UI Loads to Home Screen after small delay in time
• Optional Motor Drive Energized with 24VDC
Press and Go Selected
• UI displays Recipes
• Recipe Selected
• Once Pre-Heating is complete, Recipe Mode is engaged
• Oven will maintain temperature set point
• Conveyor will turn on to recipe cook time speed
Chef Mode (Manual Mode) Selected
• Enter Temperature Set Point
• Enter Conveyor belt speed (min:sec)
• In this mode, temperature and motor speed values will
change automatically when on this screen, but these set
points can be saved into a recipe when the save button
is pressed.
• Blower Main and Cooling Fans energized with Neutral
Power
Sequence of Operation – Impinger II Domestic Advantage Digital, Electric w/ Neutral
S/N 0809210000016 & Below
(Ovens with push button controls)
Old Model Number
1130-080-A
1130-080-A1
1130-08H-AN/A
1131-080-A
1161-080-A
1131-080-A1
1131-08H-AN/A
1132-080-A
1132-023-A
1162-080-A
1132-080-A1
1132-08H-A
1132-002-A
1133-080-A
1133-08H-A
POWER SUPPLYElectrical power to be supplied to the oven by a three conductor service for single phase and a four
conductor service for three phase.
Black conductor is hot.
Red conductor is hot.
Orange conductor is hot (used for three phase only).
White conductor is neutral.
Green conductor is ground.
CONTROL BOX AUTO
COOL DOWN
MAIN FAN CIRCUITPower is permanently supplied through the 10 amp fuses, through the normally closed oven cavity hi-limit
TEMPERATURE CONTROL Closing the main power switch supplies 208/240VAC to the primary of the control transformer. Secondary
CONVEYOR DRIVEClosing the main power switch supplies 208/240VAC to the conveyor motor and to the primary of the
AUTOMATIC COOL DOWN When the oven is started, the time delay relay timing circuit is enabled, permitting the oven fans to run
When the temperature in the control box reaches 120°F ±3° (49°C ± 1.7°), the cooling fan thermostat
will switch power to the cooling fans. The thermostat will interrupt power to the cooling fans when the
temperature falls to 100°F ± 3° (37°C ± 1.7°).
thermostat, to the normally open main power switch. Power is also supplied to the normally open cooling
fan thermostat. Closing the main power switch energizes the coil of the oven start relay, it’s contacts close
enabling the 20 minute time delay relay. The 20 minute time delay relay supplies 120VAC to the oven fan
relay, these normally open contacts now close supplying 208/240VAC to the main fan motor. 120VAC is also
supplied to the cooling fans. 208/240VAC is supplied to the primary of the control transformer, the conveyor
motor and, through the air pressure switch, to the oven control.
voltage, 24VAC, is supplied to the oven control. The oven control is set to desired temperature. The
thermocouple will provide varying millivolts to the oven control. The oven control supplies 208/240VAC to
the coil of the heater relay at intermittent intervals to maintain the desired temperature. The display on the
oven control will indicate when the heater relay is energized.
NOTE: The display also indicates oven temperature.
control transformer. Secondary voltage, 24VAC, is supplied to the oven control. Setting the oven control to
the desired time outputs voltage, through a reversing switch, to the conveyor motor.
NOTE: The conveyor system uses a Hall Effect sensor and magnet to prove operation of the conveyor motor.
If the conveyor motor is not running, “BELT JAM” is indicated on the display.
approximately 20 minutes after the oven is shut off, to cool the oven. The time delay relay will keep the coil
of the fan relay closed, maintaining operation of the main fan and cooling fans.
Sequence of Operation – Impinger II Domestic Advantage Digital, Electric w/o Neutral
S/N 0809210000017 to S/N 2104100102812
(Ovens with push button controls)
Old Model Number
1130-080-A
1130-080-A1
1130-08H-AN/A
1131-080-A
1161-080-A
1131-080-A1
1131-08H-AN/A
1132-080-A
1132-023-8
1162-080-A
1132-080-A1
1132-08H-A
1132-002-8
1133-080-A
1133-08H-A
POWER SUPPLYElectrical power to be supplied to the oven by a three conductor service for single phase and a four
conductor service for three phase.
Black conductor is hot.
Red conductor is hot.
Orange conductor is hot (used for three phase only).
Green conductor is ground.
CONTROL BOX AUTO
COOL DOWN
MAIN FAN CIRCUITPower is permanently supplied through the 10 amp fuses, through the normally closed oven cavity hi-limit
TEMPERATURE CONTROL Closing the main power switch supplies 208/240VAC to the primary of the control transformer. Secondary
CONVEYOR DRIVEClosing the main power switch supplies 208/240VAC to the conveyor motor and to the primary of the
AUTOMATIC COOL DOWN When the oven is started, the time delay relay timing circuit is enabled, permitting the oven fans to run
When the temperature in the control box reaches 120°F ± 3° (48.9°C ± 1.7°), the cooling fan thermostat will
switch power to the control box cooling fans. The thermostat will interrupt power to the cooling fans when
the control box temperature falls to 100°F ± 3° (37.8°C ± 1.7°).
thermostat, to the normally open main power switch. Power is also supplied to the normally open cooling
fan thermostat. Closing the main power switch energizes the coil of the cool down timer relay, its contacts
close enabling the 30 minute time delay relay. The 30 minute time delay relay supplies 208/240VAC to the
oven fan relay, these normally open contacts now close supplying 208/240VAC to the main fan motor.
208/240VAC is also supplied to the cooling fans. 208/240VAC is supplied to the primary of the control
transformer, the conveyor motor and, through the air pressure switch, to the oven control.
voltage, 24VAC, is supplied to the oven control. The oven control is set to desired temperature. The
thermocouple will provide varying millivolts to the oven control. The oven control supplies 208/240VAC to
the coil of the heater relay at intermittent intervals to maintain the desired temperature. The display on the
oven control will indicate when the heater relay is energized.
NOTE: The display also indicates oven temperature.
control transformer. Secondary voltage, 24VAC, is supplied to the oven control. Setting the oven control to
the desired time outputs voltage, through a reversing switch, to the conveyor motor.
NOTE: The conveyor system uses a Hall Effect sensor and magnet to prove operation of the conveyor motor.
If the conveyor motor is not running, “BELT JAM” is indicated on the display.
approximately 30 minutes after the oven is shut off, to cool the oven. The time delay relay will keep the coil
of the fan relay closed, maintaining operation of the main fan and cooling fans.
Sequence of Operation – Impinger II Domestic 1130,1131 easyTouch, Electric 1 Phase
S/N: 2104100102813 and above (easyTouch controls)
Unit Plugged Into Power
• F1 fuse energized with L1
• F2 fuse energized with L2
• Safety Contactor input energized with L1 and L2 power
• Optional Receptacle energized with L1 and L2
• Main Rocker Power Switch Input Energized with L1 and
L2. Green Light ON
Note: Green light will not be implemented with first
generation units
• Cooling Fan Thermostat energized with L1
• Main Blower and Cooling Fans energized with L2
Power Switch Turned ON
• Oven high limit capillary switch energized with L1
• Component hi-limit thermostat energized with L2
• Safety Contactor engaged/energized (If the oven
high limit capillary switch and the component hi-limit
thermostat are not tripped)
• If the Safety Contactor is engaged, all six heating
elements are energized with L1
• If the Safety Contactor is engaged, all three SSRs are
energized with L2
• Cooling Fans energized with L1
• Cooling Fan Thermostat energized with L1
• Main Blower energized with L1
• 24VDC Power Supply Energized with L1 and L2 power
• DC 4A fuse energized with 24VDC, which protects the
DC components: UI and IO board
• IO Board Energized
• IO Board boots up UI
• UI initiates with Welbilt BOOT screen. UI Loads to Home
Screen after small delay in time
• Optional Motor Drive Energized with 24VDC
Press and Go Selected
• UI displays Recipes
• Recipe Selected
• Once Pre-Heating is complete, Recipe Mode is engaged
• Oven will maintain temperature set point
• Conveyor will turn on to recipe cook time speed
Chef Mode (Manual Mode) Selected
• Enter Temperature Set Point
• Enter Conveyor belt speed (min:sec)
• In this mode, temperature and motor speed values will
change automatically when on this screen, but these set
points can be saved into a recipe when the save button
is pressed.
• Blower Main and Cooling Fans energized with Neutral
Power
Sequence of Operation – Impinger II Domestic 1132, 1133 easyTouch, Electric 3 Phase
S/N: 2104100102813 and above (easyTouch controls)
Unit Plugged Into Power
• F1 fuse energized with L1
• F2 fuse energized with L2
• Safety Contactor input energized with L1, L2 and L3
power
• Optional Receptacle energized with L1 and L2
• Main Rocker Power Switch Input Energized with L1
and L2. Green Light ON Note: Green light will not be
implemented with first generation units
• Cooling Fan Thermostat energized with L1
• Main Blower and Cooling Fans energized with L2
Power Switch Turned ON
• Oven high limit capillary switch energized with L1
• SSR Switch Disconnect energized with L2
• Safety Contactor engaged/energized (If oven high limit
capillary switch and the SSR Switch Disconnect are not
tripped)
• If the Safety Contactor is engaged, heating elements HB
and HC are energized with L1
• If the Safety Contactor is engaged, heating elements HA
and HF are energized with L2
• If the Safety Contactor is engaged, heating elements HD
and HE are energized with L3
• If the Safety Contactor is engaged, the three SSRs are
energized with L1, L2 and L3 respectively
• Cooling Fans energized with L1
• Cooling Fan Thermostat energized with L1
• Main Blower energized with L1
• 24VDC Power Supply Energized with L1 and L2 power
• DC 4A fuse energized with 24VDC, which protects the
DC components: UI and IO board
• IO Board Energized
• IO Board boots up UI
• UI initiates with Welbilt BOOT screen
• UI Loads to Home Screen after small delay in time
• Optional Motor Drive Energized with 24VDC
Press and Go Selected
• UI displays Recipes
• Recipe Selected
• Once Pre-Heating is complete, Recipe Mode is engaged
• Oven will maintain temperature set point
• Conveyor will turn on to recipe cook time speed
Chef Mode (Manual Mode) Selected
• Enter Temperature Set Point
• Enter Conveyor belt speed (min:sec)
• In this mode, temperature and motor speed values will
change automatically when on this screen, but these set
points can be saved into a recipe when the save button
is pressed.
• Blower Main and Cooling Fans energized with Neutral
Power
Sequence of Operation – Impinger II Domestic Advantage Digital, Electric
(Ovens with push button controls)
Old Model Number
N/A
POWER SUPPLYElectrical power to be supplied to the oven by a three conductor service for single phase and a four
CONTROL BOX AUTO
COOL DOWN
MAIN FAN CIRCUITPower is permanently supplied through the 10 amp fuses, through the normally closed oven cavity hi-limit
TEMPERATURE CONTROL Closing the main power switch supplies 240VAC to the primary of the control transformer.
CONVEYOR DRIVEClosing the main power switch supplies 240VAC to the conveyor motor and to the primary of
AUTOMATIC COOL DOWN When the oven is started, the time delay relay timing circuit is enabled, permitting the oven fans to run
"
"
conductor service for three phase.
Black conductor is hot.
Red conductor is hot.
Orange conductor is hot (used for three phase only).
Green conductor is ground. L1 and L2 pass through the 10 amp fuses and go to the step down 480VAC
transformer to 240VAC.
When the temperature in the control box reaches 120°F ± 3° (48.9°C ± 1.7°), the cooling fan
thermostat will switch power to the control box cooling fans. The thermostat will interrupt power to
the cooling fans when the control box temperature falls to 100°F ± 3° (37.8°C ± 1.7°).
thermostat, to the normally open main power switch. Power is also supplied to the normally open
cooling fan thermostat. Closing the main power switch energizes the coil of the cool down timer relay,
its contacts close enabling the 20 minute time delay relay. The 20 minute time delay relay supplies
240VAC to the oven fan relay, these normally open contacts now close supplying 208/240VAC to the main
fan motor. 240VAC is also supplied to the cooling fans. 240VAC is supplied to the primary of the control
transformer, the conveyor motor and, through the air pressure switch, to the oven control.
Secondary voltage, 24VAC, is supplied to the oven control. The oven control is set to desired
temperature. The thermocouple will provide varying millivolts to the oven control. The oven
control supplies 240VAC to the coil of the heater relay at intermittent intervals to maintain the
desired temperature. The display on the oven control will indicate when the heater relay is
energized.
NOTE: The display also indicates oven temperature.
the control transformer. Secondary voltage, 24VAC, is supplied to the oven control. Setting the
oven control to the desired time outputs voltage, through a reversing switch, to the conveyor
motor.
NOTE: The conveyor system uses a Hall Effect sensor and magnet to prove. If the conveyor motor is not
running, “BELT JAM” is indicated on the display.
approximately 30 minutes after the oven is shut off, to cool the oven. The time delay relay will keep the coil
of the fan relay closed, maintaining operation of the main fan and cooling fans.
Sequence of Operation – Impinger II Domestic Advantage Digital, Electric
(Ovens with push button controls)
Old Model Number
1164-000-EA
1164-080-EA
POWER SUPPLYElectrical power to be supplied to the oven by a four-conductor service.
MAIN FAN CIRCUITPower is permanently supplied, through the 10 amp oven fuse, through the normally closed oven cavity
TEMPERATURE CONTROL Closing the oven fan switch supplies line voltage, through the normally open air pressure switch (closed by
CONVEYOR DRIVEClosing the oven fan switch supplies line voltage, through the normally open air pressure switch (closed
"
"
Brown conductor is hot.
Black conductor is hot.
Red conductor is hot.
Green conductor is ground.
hi-limit (opens at 695°F, 368°C), to the normally open oven fan switch. Power is also supplied to the normally
open cooling fan thermostat. Closing the oven fan switch supplies line voltage to the main fan motor, the
cooling fans through the EMI Filter to the primary of the control transformer and to the oven control.
air pressure from the main fan) to the oven control. When the power supply is passed through the EMI Filter
the load will supply line voltage to the primary of the control transformer. Secondary voltage, 24VAC, is
supplied to the oven control. The oven control is set to desired temperature. The thermocouple will provide
varying millivolts to the oven control. The oven control supplies line voltage to the coil of the solid state
relays at intermittent intervals to maintain the desired temperature. The display on the oven control will
indicate when the contactor is energized.
NOTE: The display also indicates oven temperature.
by air pressure from the main fan) to the oven control. When the power supply is passed through the EMI
Filter the load will supply line voltage to the primary of the control transformer. Secondary voltage, 24VAC,
is supplied to the oven control. Setting the oven control to the desired time outputs voltage, through a
reversing switch, to the conveyor motor.
NOTE: The conveyor system uses a Hall Effect sensor and magnet to prove operation of the conveyor motor.
If the conveyor motor is not running, “BELT JAM” is indicated on the display.
Sequence of Operation – Impinger II International 1164 easyTouch, Electric 3 Phase
S/N: 2104100102813 and above (easyTouch controls)
Unit Plugged Into Power
• F1 fuse energized with L1
• Safety Contactor input energized with L1, L2, and L3
power
• Main Rocker Power Switch Input Energized with L1 and
Neutral Power. Green Light ON Note: Green light will not
be implemented with first generation unit.
• Cooling Fan Thermostat energized with L1
• Main Blower and Cooling Fans energized with L2
• Electric Filter energized with Neutral Power
• All six heating elements energized with Neutral Power
Power Switch Turned ON
• Oven high limit capillary switch energized with L1
• Switch disconnect SSR energized with Neutral Power
• Safety Contactor engaged/energized (If oven high limit
capillary switch and the switch disconnect SSR are not
tripped)
• If the Safety Contactor is engaged, the Electric Filter is
energized with L1, L2 and L3 power
• If the Safety Contactor is engaged, all three SSRs are
energized with L1, L2 and L3 respectively
• Cooling Fans energized with L1
• Cooling Fan Thermostat energized with L1
• Main Blower energized with L1
• 24VDC Power Supply Energized with L1 and Neutral
Power
• DC 4A fuse energized with 24VDC, which protects the
DC components: UI and IO board
• IO Board Energized
• IO Board boots up UI
• UI initiates with Welbilt BOOT screen
• UI Loads to Home Screen after small delay in time
• Optional Motor Drive Energized with 24VDC
Press and Go Selected
• UI displays Recipes
• Recipe Selected
• Once Pre-Heating is complete, Recipe Mode is engaged
• Oven will maintain temperature set point
• Conveyor will turn on to recipe cook time speed
Chef Mode (Manual Mode) Selected
• Enter Temperature Set Point
• Enter Conveyor belt speed (min:sec)
• In this mode, temperature and motor speed values will
change automatically when on this screen, but these set
points can be saved into a recipe when the save button
is pressed.
• Blower Main and Cooling Fans energized with Neutral
Power
Sequence of Operation – Impinger II International Advantage Digital, Electric
(Ovens with push button controls)
Old Model Number
N/A
POWER SUPPLYElectrical power to be supplied to the oven by a four-conductor service.
MAIN FAN CIRCUITPower is permanently supplied, through the 10 amp oven fuse, through the normally closed oven cavity
TEMPERATURE CONTROL Closing the oven fan switch supplies line voltage, through the normally open air pressure switch (closed by
CONVEYOR DRIVEClosing the oven fan switch supplies line voltage, through the normally open air pressure switch (closed
"
"
Brown conductor is hot.
Black conductor is hot.
Red conductor is hot.
Green conductor is ground.
hi-limit (opens at 695°F, 368°C), to the normally open oven fan switch. Power is also supplied to the normally
open cooling fan thermostat. Closing the oven fan switch supplies line voltage to the main fan motor, the
cooling fans through the EMI Filter to the primary of the control transformer and to the oven control.
air pressure from the main fan) to the oven control. When the power supply is passed through the EMI Filter
the load will supply line voltage to the primary of the control transformer. Secondary voltage, 24VAC, is
supplied to the oven control. The oven control is set to desired temperature. The thermocouple will provide
varying millivolts to the oven control. The oven control supplies line voltage to the coil of the contactor at
intermittent intervals to maintain the desired temperature. The display on the oven control will indicate
when the contactor is energized.
NOTE: The display also indicates oven temperature.
by air pressure from the main fan) to the oven control. When the power supply is passed through the EMI
Filter the load will supply line voltage to the primary of the control transformer. Secondary voltage, 24VAC,
is supplied to the oven control. Setting the oven control to the desired time outputs voltage, through a
reversing switch, to the conveyor motor.
NOTE: The conveyor system uses a Hall Effect sensor and magnet to prove operation of the conveyor motor.
If the conveyor motor is not running, “BELT JAM” is indicated on the display.
1. Place your temperature meter probe directly on the conveyor belt centered in the oven cavity front to back and left to
right.
2. Turn oven ON; set oven temperature to 500 F (260 C). Allow 30 minutes preheat for temperatures to stabilize in oven
cavity.
1. Access the Calibration Mode to enter and change the “Offset”. The average temperature value on your meter while the
oven is set for 500 F (260 C) and blowers running at 100% is the value that you will enter.
Note: For best result, we recommend disconnecting the drive coupling to stop the conveyor from moving. Insert the
temp wire into 1/4” (6mm) tubing with the tip of the wire exposed. Do not place a pan or any other object around the
tip as this will change the air flow and accuracy of this reading.
Conveyor Speed Calibration:
1. Conveyor speed is verified by placing an object on the conveyor belt and timing the travel starting from when it first
enters the chamber to when it first exits the chamber. This is also known as leading edge in to leading edge out. Pizza
Pans are commonly used for this test since they can handle the heat and are usually available on site.
2. Before checking conveyor speed, allow conveyor to run for 10 minutes. If speed is off 25%, verify the control board is
initialized correctly for (1100).
3. If speed is a few seconds off, bring up the Conveyor Calibration screen on the controller (Down Button while in the
Calibration Mode). Increase the value to increase the speed and decrease the value to decrease the speed (.003 is
approximately 1 second). Default value on the screen would be 1.000. A new setting of 1.003 would increase speed by 1
second. A new setting of 0.997 would decrease speed by 1 second.
S/N: 2038616 to S/N: 2106100101444 (Ovens with push button controls)
Old Model Number
1116-080-A (or A1)
1116-023-A
1117-080-A (or A1)
1117-023-A
ProblemCauseCorrection
Oven fan will not runIncoming power supplyCheck circuit breakers, reset if required. Check power plug to be sure it is
Fuse, 10 AmpCheck, replace if necessary.
Fuse HolderCheck, replace if necessary.
Hi-limit thermostat, control box for
(000-A units)
Switch, main powerCheck continuity between switch terminals. Replace switch as needed.
Main fan motorCheck for 120VAC at motor. If no voltage is present, trace wiring back to
CapacitorCheck for shorts or grounds. (15 mfd)
No control box cooling Incoming powerCheck circuit breakers, reset if required. Check power plug to be sure it is
Switch, main powerCheck continuity between switch terminals. Replace switch as needed
Cooling fan (s)Check for 120VAC at cooling fan. If no voltage is present, trace wiring back
No automatic control
box cooling
Oven will not heatGas supplyCheck for adequate gas supply to oven.
Incoming power supplyCheck circuit breakers, reset if needed. Call power company if needed.
Cooling fan thermostatCheck the cooling fan thermostat (thermostat closes at 120°F and opens at
Cooling fan(s)Supply voltage should now be at these motors. If voltage is present, check
Manual gas shut off valveCheck to see that the manual gas shut off valve is open. Also check flexible
Main oven fan Check if main oven fan is operating. If not, refer to “Oven fan will not run”.
Centrifugal switch of main fan
motor
"
"
"
"
"
"
New Model NumberGas TypeVoltageHzPhase
1116-xxx-UNatural120 VAC60 Hz11116-062-AR
1117-000z-U
1117-xxx-U
firmly in receptacle. Measure incoming power, call power co. if needed.
Check for voltage on both sides of switch. Terminals are normally closed.
If open, reset and test oven for proper operation. If thermostat will not
hold, and control box temperature is not exceeding 140°F (60°C), replace
thermostat.
main power switch.
WITH POWER OFF: Check for opens, shorts or grounds. Turn fan blade to
check for locked rotor.
WARNING: Capacitor has a stored charge, discharge before testing.
firmly in receptacle. Measure incoming power, call power co. if needed.
to power switch. If voltage is present, and motor does not run, check for
opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor and replace as needed.
100°F). With the cooling fan thermostat preheated, check for continuity. If
switch is open, replace.
motor for opens, shorts or grounds. WITH POWER OFF: Check for locked
rotor and replace as needed.
gas line connection for any damage.
Check for 120VAC at wire #5 (input to centrifugal switch, located at 6-pin
connector in raceway near the main fan motor) to neutral. If no voltage is
present, trace wiring back to the main power switch. If voltage is present,
check for 120VAC at wire #22 (output of centrifugal switch) to neutral. If no
voltage is present at #22, and the motor is running, replace the main fan
motor.
Oven will not heat, ctd. Hi-limit thermostat, oven cavityTerminals are normally closed. If open, reset thermostat and retest. If
thermostat will not hold for maximum oven temperature, and oven is not
exceeding temperature setting, check for proper location of capillary bulb in
its spring holder. If the capillary checks okay, replace the hi-limit
thermostat.
Burner blower motorCheck for 120VAC supplied to burner blower motor at wire #7 to neutral. If
no voltage is present, trace wiring back to the main power switch. If voltage
is present, and the motor is not running, check for opens, shorts or grounds.
WITH POWER OFF: Turn motor to check for locked rotor.
Burner transformerCheck for 120VAC supplied to the primary of the burner transformer. If no
voltage is present, trace wiring back to the oven cavity hi-limit thermostat. If
voltage is present, check for 24VAC at transformer secondary. If there is
primary voltage but no secondary voltage, replace burner transformer.
Centrifugal switch of burner blower
motor
Ignition controlCheck for 24VAC at ignition control terminals marked “24V”, if no voltage
Flame will not stay litHot surface igniterIf 120VAC is present at hot surface igniter terminals, visually check to see
Ignition controlAfter 45 seconds of hot surface igniter pre-heat, the ignition control will
Gas control valvesWhen 24VAC is supplied to the gas control valves, the valve should open.
Hot surface igniterSix seconds after the gas valve opens, ignition must occur. If flame is not
Power supplyIf there is sufficient microamp current, but the flame will not stay lit, check
Ignition controlIf there is sufficient microamp current, and the 120VAC polarity is correct,
NOTE: Flame should be on at this time
Check for 24VAC at motor connector, wire #13 to neutral. If voltage is not
present, trace wiring back to transformer. If voltage is present, check for
voltage at wire #14 to neutral. If no voltage is present at wire #14, and motor
is running, replace burner blower motor.
is present, trace wiring back to centrifugal switch. Check for 120VAC to
ignition control at terminal “L1” to neutral. If no voltage is present, trace
wiring back to main power switch. When 24VAC is supplied to the ignition
control, the ignition control switches 120VAC to the hot surface igniter. If
24VAC and 120VAC are supplied to ignition control, but there is no voltage
at the hot surface igniter, replace the ignition control.
that the igniter is heating
(Igniter may be viewed through the port in the end of burner tube). The
igniter should glow bright red. If the igniter does not heat, replace the hot
surface igniter.
switch 24VAC to the gas control valves. Check for 24VAC output from
ignition control across terminals marked “valve” and “valve gnd”. If no
voltage is present, replace ignition control.
Check for gas pressure at the manifold tap located just before the burner.
If there is no pressure, check the incoming gas supply to be sure all manual
valves are open and flexible gas hose is properly connected. If gas is present,
and the gas control valve is energized, but there is no gas pressure at the
burner manifold, replace the gas valve.
detected, the ignition control will shut off and lock out. To reset the ignition
control, turn off the power switch for 45 seconds, then turn the switch
on to re-try ignition. The ignition control requires a minimum of 0.8 DC
microamps to prove flame. To check flame sensing operation, connect a
digital multimeter (capable of measuring DC microamps) between the
“ground” terminal on ignition control and the ground lead.
NOTE: This is a current measurement, and the meter must be connected in
series.
If these readings are not achieved, replace hot surface igniter. NOTE: The
DC microamp test must be conducted with the oven in low flame (bypass)
operation. Set the temperature control to the lowest setting.
for proper polarity of the 120VAC power supply.
but the flame will not stay lit, replace the ignition control. NOTE: Check for
Intermittent heatingThermal/overload of main fan and
Conveyor(s) will not
run
Control transformerCheck for 120VAC supply to the primary of the control transformer. If no
voltage is present, trace wiring back to the main power switch. If voltage is
present, check for 24VAC at the transformer secondary. If there is primary
voltage, but no secondary voltage, replace the control transformer.
Oven controlCheck for 24VAC supply to control. If no voltage is present, trace wiring back
to control transformer. If 24VAC is present, check for a read-out on the
display. If there is 24VAC supplied, but there is no read-out on the control
display, replace the oven control.
If there is a read-out on the control, set the control to maximum
temperature (see installation operations manual for temperature
adjustment). With the control set at maximum temperature, check for
120VAC at the temperature regulation valve. If there is voltage at the
temperature regulation valve, proceed to “Temperature regulation valve” for
next check. If there is no voltage at the temperature regulation valve, trace
wiring back to the oven control. If there is no voltage output at the oven
control, check the read-out on the control. If the control reads “PROBE FAIL”,
this indicates that the thermocouple has failed or become disconnected
from the oven control.
Thermocouple (see QR chart on
Page 66)
Temperature regulation valveCheck for 120VAC supplied to temperature regulation valve. If voltage is
burner blower motor
Power supplyCheck for incoming voltage at line 1 to neutral. There should be a reading of
Fuse, 10 AmpCheck, replace if necessary.
Fuse holderCheck, replace if necessary.
Hi-limit thermostat, control box
(000-A Units ONLY)
Power switchCheck continuity between switch terminals. Replace switch as needed.
Control transformerCheck for 120 VAC supply to the primary of the control transformer. If no
Check to be sure that the thermocouple is securely connected to the oven
control. If the thermocouple is connected to the oven control, and the
control indicates “PROBE FAIL”, disconnect the thermocouple from the oven
control and measure the resistance of the thermocouple. The thermocouple
should read approx. 11Ω. If these readings are not achieved,
replace the thermocouple. If these readings are correct, proceed.
present, listen for valve to open and close. Also check for opens or shorts
in the operating coil. Check for proper gas pressure at the oven manifold.
Replace temperature regulation valve as needed.
The main fan motor and burner blower motor are equipped with internal
thermal protection and will cease to operate if overheating occurs. As
the motors overheat and then cool, this will cause the heating system to
cycle on and off intermittently. Improper ventilation or lack of preventive
maintenance may cause this problem. Also, most of the problems listed
under “Oven will not heat” can cause intermittent failure.
120VAC. If not present, check circuit breakers.
Check for voltage on both sides of switch. Terminals are normally closed. If
open, reset and test oven for proper operation. If thermostat will not hold,
and control box temperature is not exceeding 140°F
(60°C), replace thermostat.
voltage is present, trace wiring back to the oven power relay. If voltage is
present, check for 24 VAC at the transformer secondary. If there is primary
voltage but no secondary voltage, replace control transformer.
Conveyor motor runs,
but there is no speed
display
Conveyor motorCheck for 120 VAC supply to the conveyor motor at wire #10 to neutral.
If no voltage is present, trace wiring back to the primary of the control
transformer. If voltage is present and the motor will not run, check the
motor windings for opens or shorts.
WITH POWER OFF: Check the motor windings as follows:
S/N: 2052462 and below Grey to black - 38Ω approx.
(Blue Dot ) Grey to blue - 38Ω approx.
Blue to black - 75Ω approx.
S/N: 2052463 and above Grey to black - 89Ω approx.
(Green Dot ) Grey to blue - 89Ω approx.
Blue to black - 178Ω approx.
If any of the above fails, replace conveyor motor.
Capacitor, conveyor motorCheck for shorts or grounds and test the capacitor. Replace capacitor as
needed. WARNING: Capacitor has a stored charge, discharge before testing.
(S/N: 2052462 & below blue dot = 4.5mfd)
(S/N: 2052462 & above green dot = 3.5mfd)
Switch, conveyor reversingCheck continuity between switch terminals. Replace switch as needed.
Oven controlIf there is 120VAC supplied to the motor, and the motor, capacitor, and
reversing switch check good, replace the oven control.
NOTE: Display will indicate “Belt
Jam”
Oven controlCheck for output voltage from oven control to Hall Effect sensor (sensor is
located in conveyor motor). Measure voltage at the motor connector, red
wire and yellow wire. Voltage should be approx. 10VDC. If no voltage is
present, trace wiring back to oven control. If there is no voltage present at
the oven control, replace the oven control.
Conveyor motorIf there is voltage supplied to the Hall Effect sensor, check for a frequency
output from the Hall Effect sensor. Measure frequency across the yellow and
white wires at the motor connector. Frequency reading should be approx.
25 – 100 Hz. If these readings are not achieved, replace conveyor motor. If
the readings are achieved, proceed.
Oven controlIf the Hall Effect sensor readings are correct, but there is no speed indicated
Troubleshooting Guide – Impinger II Domestic 1116,1117 easyTouch, Gas
S/N: 2106100101445 and above (easyTouch controls)
ProblemCauseCorrection
UI blankOven not plugged in, panel breaker
tripped
Faulty fuses/fuse holderReplace fuses on back panel
Wiring IssueInspect UI cable for damage
Faulty UICheck for cracks or damaged screen
Faulty power switchCheck continuity through switch. Check for incoming
Faulty DC power supplyCheck for steady 120VAC input between #59 (N) and #74(L)
Faulty IO boardCheck for 24VDC input on (-V) and (+V) wires
UI screen locked up,
frozen, nonresponsive
to touch
Unable to read USBFaulty flash driveRetry with known good quality flash drive
Unable to load USB
files
Software issueTurn OFF the unit using the power switch, turn the
Damaged or cracked touchscreenInstall new UI with correct software revision
Incorrect USB formatMake sure flash drive is formatted using FAT32
USB cable disconnectedCheck if USB connector is seated properly
Faulty UICheck for cracks or damaged screen
Faulty flash driveRetry with known good quality flash drive
Files on flash drive incorrect or
corrupt
Faulty USB socketInspect USB socket for damage and replace if needed
Check panel breaker and plug
Ensure input voltage is within specifications
Inspect fuse holders for cracks and replace if needed
Unplug and plug the UI cable back in
Replace UI cable
Check cable connection to UI for fit
Install new UI with correct software revision
120VAC on terminals. Replace if needed.
Check for steady 24VDC output between (+) and (-) wires
Check for physical damage on the circuit board.
Replace if needed
Check cable connection to UI for fit
Inspect IO board for damage and replace if needed
unit back ON after 30 seconds.
Check cable connection to UI for fit
Install new UI with correct software revision
Delete all files on flash drive and reload updated files
Oven fan will not runIncoming power supplyCheck circuit breakers, reset if required. Check power plug to be sure it is
firmly in receptacle. Measure incoming power, call power co. if needed.
Fuse, 10 Amp and/or Fuse HolderCheck, replace if necessary.
Switch, main powerCheck continuity between switch terminals. Replace switch as needed.
Main fan motorCheck for 120VAC at motor. If no voltage is present, trace wiring back to
main power switch.
WITH POWER OFF: Check for opens, shorts or grounds. Turn fan blade to
check for locked rotor.
CapacitorCheck for shorts or grounds. (15 mfd)
WARNING: Capacitor has a stored charge, discharge before testing.
No control box cooling Incoming powerCheck circuit breakers, reset if required. Check power plug to be sure it is
firmly in receptacle. Measure incoming power, call power co. if needed.
Switch, main powerCheck continuity between switch terminals. Replace switch as needed
Cooling fan (s)Check for 120VAC at cooling fan. If no voltage is present, trace wiring back
to power switch. If voltage is present, and motor does not run, check for
opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor and replace as needed.
No automatic control
box cooling
Incoming power supplyCheck circuit breakers, reset if needed. Call power company if needed.
Cooling fan thermostatCheck the cooling fan thermostat (thermostat closes at 120°F and opens at
100°F). With the cooling fan thermostat preheated, check for continuity. If
switch is open, replace.
Cooling fan(s)Supply voltage should now be at these motors. If voltage is present, check
motor for opens, shorts or grounds. WITH POWER OFF: Check for locked
Temperature set point has not been
reached
Coupling loose or disconnectedTighten set screw on coupling
Belt link loose or disconnectedTighten belt, if needed replace belt link
Conveyor has stretched from useRemove adequate number of links to tighten the belt
Incorrectly installedVerify conveyor belt orientation. Shaft should be
Software issueTurn OFF the unit using the power switch, turn the
Failed or failing conveyor stepper
motor
Faulty IO board and/or built-in
motor drive
Faulty stepper drive (STR8)
(See chart on page 70)
If using the Press & Go menu recipes, wait until UI
displays the “Ready” status message
inserted into motor coupling
unit back ON after 30 seconds.
Go to Manual Mode and change belt speed
Check for resistance on red and blue and again at
yellow and white. Resistance should be .65Ω (±10%).
Check for opens, shorts or grounds
Change conveyor belt direction in the UI’s Settings Menu
Check for 24VDC input on (-V) and (+V) wires
Check wires are connected properly
Inspect IO board for damage and replace if needed
Check LEDs to identify alarm codes on stepper drive. Faults disable the
motor and can be cleared by cycling power to the drive.
Try the built-in self test. Anytime switch 8 is moved to the ON position, the
drive will automatically rotate the motor back and forth, two turns in each
direction. This feature can be used to confirm the motor is correctly wired,
selected and operational.
Check for 24VDC input on (-V) and (+V) wires
Check wires are connected properly
Inspect stepper motor drive for damage and replace if needed
Flame will not stay litHot surface igniterSix seconds after the gas valve opens, ignition must
occur. If flame is not detected, the ignition control will shut off and
lock out. To reset the ignition control, turn off the power switch for 45
seconds, then turn the switch on to re-try ignition. The ignition control
requires a minimum of 0.8 DC microamps to prove flame. To check flame
sensing operation, connect a digital multimeter (capable of measuring DC
microamps) between the “ground” terminal on ignition control and the
ground lead. NOTE: This is a current measurement, and the meter must be
connected in series.
If these readings are not achieved, replace hot surface igniter. NOTE: The
DC microamp test must be conducted with the oven in low flame (bypass)
operation. Set the temperature control to the lowest setting.
Power supplyIf there is sufficient microamp current, but the flame will not stay lit, check
for proper polarity of the 120VAC power supply.
Ignition controlIf there is sufficient microamp current, and the 120VAC polarity is correct,
but the flame will not stay lit, replace the ignition control. NOTE: Check
for proper ground connection on ignition control.
NOTE: Flame should be on at this time
Intermittent heatingThermal/overload of main fan and
burner blower motor
The main fan motor and burner blower motor are equipped with internal
thermal protection and will cease to operate if overheating occurs. As
the motors overheat and then cool, this will cause the heating system to
cycle on and off intermittently. Improper ventilation or lack of preventive
maintenance may cause this problem. Also, most of the problems listed
under “Oven will not heat” can cause intermittent failure.
Oven fan will not runIncoming power supplyCheck circuit breakers, reset if required. Check power plug to be sure it is
Control Box Limit (000-A
Units Only)
Fuse, 10 ampCheck, replace if necessary.
Fuse holderCheck, replace if necessary.
Switch, main fanCheck and/or replace.
Motor, main fanWith power off, check continuity between switch terminals. Check for opens,
CapacitorCheck for shorts or grounds. 7.5 mfd
No control box cooling Incoming power supplyCheck breaker, reset if required. Check power plug to be sure it is firmly in
Switch, main fanWith power off, check continuity between switch terminals. Replace as
Cooling fansLine voltage should now be at the cooling fan. If voltage is present, check
Fuse and Fuse HolderCheck continuity, check for opens and shorts. Replace if necessary.
No automatic control
box cooling
Incoming power supplyCheck breaker, reset if required. Check power plug to be sure it is firmly
Cooling fan thermostatCheck the cooling fan thermostat (thermostat closes at 120°F and opens at
Cooling fanLine voltage should now be at the cooling fan. If voltage is present, check
Fuse, 10 ampCheck, replace if necessary.
Fuse holderCheck, replace if necessary.
"
"
"
"
"
"
New Model NumberGas TypeVoltageHzPhase
1154-xxx-E
1157-xxx-N220 VAC60 Hz
1155-xxx-E
1158-xxx-N220 VAC60 Hz
firmly in receptacle. Measure incoming power, call power co. if needed.
Check to see if it is open, replace if necessary.
shorts or grounds. With power off, turn fan blade to check for locked rotor.
Replace as needed.
WARNING: Capacitor has a stored charge, discharge before testing.
receptacle. Measure incoming power, call power company if needed.
needed.
motor for opens, shorts or grounds. With power off, check for locked rotor.
in receptacle. Measure incoming power, call power company if needed.
100°F). With the cooling fan thermostat pre-heated, check for continuity. If
thermostat is open, replace cooling fan thermostat.
motor for opens, shorts or grounds. With power off, check for locked rotor.
Oven will not heatGas supplyCheck for adequate gas supply and be sure that the manual gas shut
Main fanoff valve is open. Also check flexible gas line connection.
Air pressure switchIf not operating, refer to “Oven fan will not run”.
Oven cavity hi-limit thermostatCheck air switch terminals for supply voltage to terminals C and NO.
If voltage is present on one side only, check for air tube blockage or
misalignment. If these are okay, adjust air pressure switch or replace if
necessary.
Ignition control Honeywell
(See Section 4 for Techrite charts)
Burner blower motorCheck for supply voltage to motor. WITH POWER OFF: Turn blower wheel
Air pressure switch (burner blower) Check for proper supply voltage switching from “NC” to “NO” on ignition
Ignition controlA pre-purge time of 30 to 60 seconds occurs after burner blower motor
Igniter/sensor assemblyCheck this assembly for visible damage. Replace as needed. If there is no
Gas valveGas valve should open as the ignition control generates the high voltage
Flame will not stay on Flame sensorTo check for flame sensor operation, connect a digital multimeter (capable
Power supplySet the temperature to the lowest temperature setting. If there is sufficient
Terminals are normally closed, opens at 350°C (660°F). If open, reset and test
oven for proper operation. If thermostat will not hold for maximum oven
temperature, and oven is not exceeding control setting, check for proper
location of capillary bulb in its spring holder. If above checks are okay,
replace hi-limit thermostat.
to check for locked rotor. If supply voltage is present at motor connecting
plug terminal 2 and Neutral, and motor does not run, replace burner blower
motor.
control. Check for air pressure switch adjustment, air tube blockage or
misalignment. If these adjustments fail, replace air pressure switch.
starts. Check for high voltage spark output from the ignition control. If there
is no high voltage spark output, check reset button for ignition control. If
there is still no high voltage output, replace the ignition control.
visible damage, check for voltage supply to igniter/sensor assembly. If
there is voltage supplied to the igniter/sensor, but there is no spark, replace
igniter/sensor assembly.
spark. Place manometer on the pressure tap fitting (located in the gas
piping just prior to the burner manifold) and check for gas pressure. If valve
does not open, check reset button on ignition control, and all connections
for tightness. If there is still no gas pressure, remove the ignition control
from the gas valve. Check the coils of the gas valve for opens or shorts.
Readings should be as follows, V1 – 2.9K ohms approx., V2 – 1.3K ohms
approx. If these readings are not achieved, replace gas valve. If these
readings are achieved, replace ignition control.
of measuring DC microamps) between the flame sensor wire and the
flame sensor connection on the ignition control. Sensor current is to be 0.9
microamps, minimum. If these readings are not achieved, replace igniter/
sensor assembly. Also check for any type of damage to flame sensor wire
and connections.
NOTE: The DC microamp test must be conducted with the oven in low flame
(bypass) operation.
microamp current, but the flame will not stay lit, check for proper polarity of
NOTE: Flame should be on at this time
Low flame is on, but
no main flame
Control transformerCheck for supply voltage to the primary of control transformer. If no voltage
is present, trace wiring back to oven EMI filter. If voltage is present, check for
voltage at the EMI filter. If there is no primary voltage, replace EMI Filter.
Thermocouple
(see QR chart on page 66)
Check to be sure that the thermocouple is securely connected to the oven
control. If the thermocouple is connected to the oven control, and the
control indicates “PROBE FAIL”, disconnect the thermocouple from the oven
control and measure the resistance of the thermocouple. Resistance: 7Ω -
14Ω
If these readings are not achieved, replace the thermocouple. If these
readings are correct, proceed.
Conveyor motor
not turning
Conveyor motor runs,
but there is no speed
display
Temperature regulation
valve
Conveyor motorCheck for supply voltage to the conveyor motor at wire #6 to neutral. If no
Capacitor, conveyor motorCheck for shorts or grounds. Replace capacitor as needed.
Switch, conveyor reversingCheck continuity between switch terminals. Replace switch as needed.
Oven controlIf there is voltage supplied to the motor, and the motor, capacitor and
NOTE: Display will indicate “BELT
JAM”
Oven controlCheck for output voltage from oven control to Hall Effect sensor (sensor is
Conveyor motorIf there is voltage supplied to the Hall Effect sensor, check for a frequency
Oven controlIf the Hall Effect sensor readings are correct, but there is no speed indicated
Check for 230VAC supplied to temperature regulation valve. If voltage is
present, listen for valve to open and close. Also check for opens or shorts in
the operating coil. Check for proper gas pressure at the oven manifold.
Replace temperature regulation valve as needed.
voltage is present, trace wiring back to the oven fan switch. If voltage is
present, but the motor will not run, check the motor windings for opens or
shorts. If any of the above fail, replace the conveyor motor.
S/N: 2052462 and below Grey to Black 240Ω approx.
(Red Dot) Grey to Brown 240Ω approx.
Brown to Black 480Ω approx.
Grey to Black 360Ω approx.
S/N: 2052463 and above Grey to Brown 360Ω approx.
(Brown Dot) Brown to Black 720Ω approx.
WARNING: Capacitor has a stored charge, discharge before testing.
S/N: 2052462 and below 1.2 mfd (Red Dot)
S/N: 2052463 and above 1.0mfd (Brown Dot)
reversing switch check good, replace the oven control.
located in the conveyor motor). Measure voltage at the motor connector,
red wire and yellow wire. Voltage should be approx. 10VDC. If no voltage is
present, trace wiring back to oven control. If there is no voltage output at
the oven control, replace oven control.
output from the Hall Effect sensor. Measure frequency across the yellow and
white wires in the motor connector. Frequency reading should be approx.
25-100 Hz. If these readings are not achieved, replace conveyor motor. If the
Troubleshooting Guide – Impinger II International 1154,1155,1157,1158 easyTouch, Gas
S/N: 2106100101445 and above (easyTouch controls)
ProblemCauseCorrection
UI blankOven not plugged in, panel breaker
tripped
Faulty fuses/fuse holderReplace fuses on back panel
Wiring IssueInspect UI cable for damage
Faulty UICheck for cracks or damaged screen
Faulty power switchCheck continuity through switch. Check for incoming
Faulty DC power supplyCheck for steady 120VAC input between #59 (N)
Faulty IO boardCheck for 24VDC input on (-V) and (+V) wires
UI screen locked up,
frozen, nonresponsive
to touch
Unable to read USBFaulty flash driveRetry with known good quality flash drive
Unable to load USB
files
Software issueTurn OFF the unit using the power switch, turn the
Damaged or cracked touchscreenInstall new UI with correct software revision
Incorrect USB formatMake sure flash drive is formatted using FAT32
USB cable disconnectedCheck if USB connector is seated properly
Faulty UICheck for cracks or damaged screen
Faulty flash driveRetry with known good quality flash drive
Files on flash drive incorrect or
corrupt
Faulty USB socketInspect USB socket for damage and replace if needed
Check panel breaker and plug
Ensure input voltage is within specifications
Inspect fuse holders for cracks and replace if needed
Unplug and plug the UI cable back in
Replace UI cable
Check cable connection to UI for fit
Install new UI with correct software revision
120VAC on terminals. Replace if needed.
and #74(L)
Check for steady 24VDC output between (+) and
(-) wires
Check for physical damage on the circuit board.
Replace if needed
Check cable connection to UI for fit
unit back ON after 30 seconds.
Check cable connection to UI for fit
Install new UI with correct software revision
Delete all files on flash drive and reload updated files
Oven fan will not runIncoming power supplyCheck circuit breakers, reset if required. Check power plug to be sure it is
firmly in receptacle. Measure incoming power, call power co. if needed.
Fuse, 10 Amp and/or Fuse HolderCheck, replace if necessary.
Latching contactorVerified the K1 contactor is closed and power is being supplied to the motor
on wires 39 and 28. If the coil of the K1 contactor does not close an alarm
will sound.
Push Button Reset (Alarm)Verify that the alarm reset has been pushed and is engaged if not check
continuity between wires numbers 71,72 and 74,75
Fuse, 10 Amp and/or Fuse HolderCheck, replace if necessary.
Switch, main powerCheck continuity between switch terminals. Turn off then on after 30 sec.
Replace switch as needed.
Main fan motorCheck for 120VAC at motor. If no voltage is present, trace wiring back to
main power switch.
WITH POWER OFF: Check for opens, shorts or grounds. Turn fan blade to
check for locked rotor.
CapacitorCheck for shorts or grounds. (15 mfd)
WARNING: Capacitor has a stored charge, discharge
before testing.
No control box cooling
& No automatic
control box cooling
Incoming powerCheck circuit breakers, reset if required. Check power plug to be sure it is
firmly in receptacle. Measure incoming power, call power co. if needed.
Switch, main powerCheck continuity between switch terminals. Replace switch as needed
Cooling fan(s)Check for 120VAC at cooling fan. If no voltage is present, trace wiring back
to power switch. If voltage is present, and motor does not run, check for
opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor and replace as needed.
Latching contactorVerified the K1 contactor is closed and power is being supplied to the motor
on wires 39 and 28. If the coil of the K1 contactor does not close an alarm
will sound.
Push Button Reset (Alarm)Verify that the alarm reset has been pushed and is engaged if not check
continuity between wires numbers 71,72 and 74,75
Fuse, 10 Amp and/or Fuse HolderCheck, replace if necessary.
Gas supplyCheck for adequate gas supply to oven. (Natural Gas = 3.5” WC)
(LP Gas = 10” WC )
Manual gas shut off valveCheck to see that the manual gas shut off valve is open. Also check flexible
gas line connection for any damage.
Main fanIf not operating, refer to “Oven fan will not run”.
Air pressure switch (main blower)Check for proper supply voltage switching from “NC” to “NO” on ignition
control. Check for continuity on wires 23 and 22. Check for air pressure
switch adjustment, air tube blockage or misalignment. If these adjustments
fail, replace air pressure switch.
Burner blower motorCheck for supply voltage to motor. WITH POWER OFF: Turn blower wheel
to check for locked rotor. If supply voltage is present at motor connecting
wires 38 and 17, and motor does not run, replace burner blower motor.
Air pressure switch (burner blower) Check for proper supply voltage switching from “NC” to “NO” on ignition
control. Check for continuity on wires 18 and 16. Check for air pressure
switch adjustment, air tube blockage or misalignment. If these adjustments
fail, replace air pressure switch.
Ignition control
(See Section 4 for Techrite charts)
Igniter/sensor assemblyCheck this assembly for visible damage. Replace as needed. If there is no
Gas control valvesWhen 24VAC is supplied to the gas control valves, the valve should open.
Check for 120VAC at ignition control terminals marked “J4 ( N, A)”, if no
voltage is present, trace wiring back to air pressure switch. A pre-purge time
of 30 to 60 seconds occurs after burner blower motor starts. Check for high
voltage spark output from the ignition control. If there is no high voltage
spark output, check reset button for ignition control. If there is still no high
voltage output, replace the ignition control.
visible damage, check for voltage supply to igniter/sensor assembly. If
there is voltage supplied to the igniter/sensor, but there is no spark, replace
igniter/sensor assembly.
Check for gas pressure at the manifold tap located just before the burner.
If there is no pressure, check the incoming gas supply to be sure all manual
valves are open and flexible gas hose is properly connected. If gas is present,
and the gas control valve is energized, but there is no gas pressure at the
Flame will not stay litFlame sensorTo check for flame sensor operation, connect a digital multimeter (capable
of measuring DC microamps) between the flame sensor wire and the
flame sensor connection on the ignition control. Sensor current is to be 0.9
microamps, minimum. If these readings are not achieved, replace igniter/
sensor assembly. Also check for any type of damage to flame sensor wire
and connections.
NOTE: The DC microamp test must be conducted with the oven in low flame
(bypass) operation.
Power supplyIf there is sufficient microamp current, but the flame will not stay lit, check
for proper polarity of the 120VAC power supply.
Ignition controlIf there is sufficient microamp current, and the 120VAC polarity is correct,
but the flame will not stay lit, replace the ignition control. NOTE: Check
for proper ground connection on ignition control.
NOTE: Flame should be on at this time
Low flame is on, but
no main flame
Air pressure switch (burner blower) Check for proper supply voltage switching from “NC” to “NO” on ignition
control. Check for continuity on wires 18 and 16. Check for air pressure
switch adjustment, air tube blockage or misalignment. If these adjustments
fail, replace air pressure switch. If the air pressure switch is operational check
ignition control. (See “Unable to reach or maintain temperature”)
PSU1 (D.C. Power Supply)Check for 120VAC supply to the primary of the PSU1. If no voltage is present,
trace wiring back to the main power switch. If voltage is present, check for
24VDC at the PSU1 secondary. If there is primary voltage, but no secondary
voltage, replace the PSU1.
Oven ControlCheck for 24VDC supply to control. If no voltage is present, trace wiring
back to PSU1. If 24VDC is present, check for a read-out on the display. If
there is 24VDC supplied, but there is no read-out on the control display,
replace the oven control. If there is a read-out on the control, set the control
to maximum temperature. With the control set at maximum temperature,
check for 120VAC at the temperature regulation valve. If there is voltage at
the temperature regulation valve, proceed to “Temperature regulation valve”
for next check. If there is no voltage at the temperature regulation valve,
trace wiring back to the oven control. If there is no voltage output at the
oven control, check the read-out on the control. If the control reads “ERR_
THERMOCPL” , this indicates that the thermocouple has failed or become
disconnected from the oven control.
Temperature regulation valveCheck for 120VAC supplied to temperature regulation valve. If voltage is
Temperature set point has not been
reached
Coupling loose or disconnectedTighten set screw on coupling
Belt link loose or disconnectedTighten belt, if needed replace belt link.
Conveyor has stretched from useRemove adequate number of links to tighten the belt
Incorrectly installedVerify conveyor belt orientation. Shaft should be inserted into motor
Software issueTurn OFF the unit using the power switch, turn the unit back ON after 30
Failed or failing conveyor stepper
motor
Faulty IO board and/or built-in
motor drive
Faulty stepper drive (STR8)
(See chart on page 70)
Check to be sure that the thermocouple is securely connected to the oven
control. If the thermocouple is connected to the oven control, and the
control indicates “PROBE FAIL”, disconnect the thermocouple from the oven
control and measure the resistance of the thermocouple.
Resistance: 7Ω - 14Ω
If these readings are not achieved, replace the thermocouple. If these
readings are correct, proceed.
present, listen for valve to open and close. Also check for opens or shorts
in the operating coil. Check for proper gas pressure at the oven manifold.
Replace temperature regulation valve as needed. If voltage is not present
see “Oven will not heat, Oven control” problem and cause section.
If using the Press & Go menu recipes, wait until UI displays the “Ready” status
message
coupling.
seconds.
Check for resistance on red and blue and again at yellow and white.
Resistance should be .65Ω (±10%).
Check for opens, shorts or grounds
Change conveyor belt direction in the UI’s Settings Menu
Check for 24VDC input on (-V) and (+V) wires
Check wires are connected properly
Inspect IO board for damage and replace if needed
Check LEDs to identify alarm codes. Faults disable the motor and can be
cleared by cycling power to the drive.
Try the built-in self test. Anytime switch 8 is moved to the ON position, the
drive will automatically rotate the motor back and forth, two turns in each
direction. This feature can be used to confirm the motor is correctly wired,
selected and operational.
Check for 24VDC input on (-V) and (+V) wires
Check wires are connected properly.
Inspect stepper motor drive for damage and replace if needed
Troubleshooting Guide – Impinger II Domestic Advantage Digital, Electric
S/N 0809210000017 to S/N 2104100102812 (Ovens with push button controls)
Old Model Number
1130-080-A
1130-080-A1
1130-08H-AN/A
1131-080-A
1161-080-A
1131-080-A1
1131-08H-AN/A
1132-080-A
1132-023-A
1162-080-A
1132-080-A1
1132-08H-A
1132-002-A
1133-080-A
1133-08H-A
ProblemCauseCorrection
Oven fan will not runIncoming power supplyCheck circuit breakers. Reset if required. Call power co. if needed.
Fuses, 10 Amp, motor, and controls Check, replace if necessary.
Hi-limit thermostat, Oven cavityTerminals are normally closed. If open, reset thermostat and retest. If
Switch, main powerCheck continuity between switch terminals. Replace switch as
Relay, oven startCheck for 208 or 240VAC supplied to coil of relay. If no voltage is present,
30 minute time delay
(not available on all models)
Relay, main fanCheck for 208 or 240VAC to coil of main fan relay. If no voltage is present,
Main fan motorCheck for supply voltage at motor. If no voltage is present, trace wiring back
CapacitorCheck for shorts or grounds. (7mfd)
No main fan cool
down
Main fan runs after 30
minute cool down
30 Minute time delay
(not available on all models)
Oven fan relayCheck for 208 or 240VAC to relay coil, if no voltage is present, trace wiring
Oven start relayContacts should open when main power switch is turned off. Replace relay
"
"
"
"
"
"
"
"
"
"
New Model NumberVoltageHzPhase
1130-xxx-U or (V)
1131-xxx-U or (V)
1131-037-U
1132-xxx-U or (V)
1132-037-U
1172-xxx-U
1174-xxx-U
1133-xxx-U or (V)
1173-xxx-U
thermostat will not hold for maximum oven temperature, and oven is not
exceeding temperature setting, check for proper location of
capillary bulb in its spring holder. If the capillary checks okay, replace the
hi-limit thermostat.
needed.
trace wiring back to main power switch. If voltage is present, check for pull
in of relay contacts. Replace relay as needed.
Check for 208 or 240VAC at terminal #1 to #3 on time delay relay. If voltage
is not present, trace wiring back to 10A fuse. If voltage is present at terminal
#1, check for 208/240VAC at terminal #2 to #3. If no voltage is present, and
oven start relay is closed, replace 30 minute time delay relay.
trace wiring back to 20 minute time delay relay. If voltage is present, check
to insure that relay contacts are closing. Replace relay as needed.
to main fan relay.
WITH POWER OFF: Check for opens, shorts or grounds. Turn fan blade to
check for locked rotor.
WARNING: Capacitor has a stored charge, discharge before testing.
Check for 208 or 240VAC at terminal #2 to #3 while the oven is “on”. Turn
off the main switch, 208 or 240VAC should continue to be present for 30
minutes. If voltage is not present for approx. 30 minutes, replace the 30
minute time delay.
back to 30 minute time delay. If voltage is present, be sure that relay
contacts stay closes during the 30 minute cool down.
Replace relay as needed.
No control box cooling Incoming powerCheck circuit breakers, reset if required. Check fuses and hi-limit for an
No automatic control
box cooling
Oven will not heatMain fan motorCheck for main fan operation. If it is not operating, refer to “Oven fan will not
30 Minute time delay
(not available on all models)
Oven fan relayCheck to insure that the relay contacts are opening after the relay coil is de-
30 Minute time delay
(not available on all models)
Switch, main powerCheck continuity between switch terminals. Replace switch as needed.
Cooling fansCheck for supply voltage at cooling fans. If no voltage is present, trace
Incoming power supplyCheck circuit breakers, reset if required. Check fuses and hi-limit for an
Cooling fan thermostatCheck the cooling fan thermostat. (Thermostat closes at 120 F and opens at
Cooling fansCheck for supply voltage at cooling fan. If no voltage is present, trace wiring
Air pressure switchThis normally open switch should close when the main fan is activated.
Control transformerCheck for 208 or 240VAC supply to the primary of the control transformer. If
Oven controlCheck for 24VAC supply to control. If no voltage is present, trace wiring
208 or 240VAC at terminal #2 should discontinue approx.30 minutes after
main power is switched off. If the oven start relay contacts are open, and the
voltage continues at terminal #2 of the 30 minute timer, for more than 30
minutes, replace the 30 minute time delay.
energized. Replace relay as needed.
NOTE: On/Off operation of the main power switch will set the timer to 30
minutes. If the timer is accidentally reset, turn off the main circuit breaker for
15 seconds to cancel.
open circuit or trips. Check power plug to be sure it is firmly in receptacle.
Measure incoming power, call power co. if needed.
wiring back to power switch. If voltage is present, and motor does not run,
check for opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor.
open circuit or trips. Check power plug to be sure it is firmly in receptacle.
Measure incoming power, call power co. if needed.
100 F). With the cooling fan thermostat pre-heated, check for continuity. If
switch is open, replace cooling fan thermostat.
back to cooling fan thermostat. If voltage is present, and motor does not
run, check for opens, shorts or grounds. WITH POWER OFF: Check for locked
rotor.
run”.
Refer to page 61. Replace as needed.
no voltage is present, trace wiring back to the main power switch. If voltage
is present, check for 24VAC at the transformer secondary. If there is primary
voltage, but no secondary voltage, replace the control transformer.
back to control transformer. If 24VAC is present, check for a read-out on the
display. If there is 24VAC supplied, but there is no read-out on the control
display, replace the oven control.
If there is a read-out on the control, set the control to maximum
temperature. With the control set at maximum temperature, check for
supply voltage at mercury contactor. If there is voltage at the mercury
contactor, proceed to “mercury contactor” for next check. If there is no
voltage at the mercury contactor, trace wiring back to the oven control.
If there is no voltage output at the oven control, check the read-out
on the control. If the control reads “PROBE FAIL”, this indicates that the
thermocouple has failed or become disconnected from the oven control.
Oven controlIf the thermocouple checks good, but the oven control display
Thermocouple
(see QR chart on page 66)
Oven controlIf the thermocouple checks good, but there is no voltage output to the
Mercury contactorCheck for supply voltage to the contactor coil. If voltage is present and the
Heating element(s)Check the Amp draw on each power leg for proper load. Check the
Oven heats with
switch off
Intermittent heatingThermal/overload of motorThe main fan motor is equipped with internal thermal protection and will
Conveyor(s) will not
run Models with -050will have a split belt
Mercury contactorThe mercury contactor has probably failed in the closed position. If there is
Power supplyCheck circuit breakers, reset if required. Check power plug to be
Fuse, 10 AmpCheck, replace if necessary.
Fuse holderCheck, replace if necessary.
Hi-limit thermostat, oven cavityTerminals are normally closed. If open, reset thermostat and retest. If
Power switchCheck continuity between switch terminals. Replace switch as needed.
Control transformerCheck for supply voltage to the primary of the control transformer. If no
Check to be sure that the thermocouple is securely connected to the oven
control. If the thermocouple is connected to the oven control, and the
control indicates “PROBE FAIL”, disconnect the thermocouple from the oven
control and measure the resistance of the thermocouple. The thermocouple
should read approx.11Ω
If these readings are not achieved, replace the thermocouple. If these
readings are correct, proceed.
indicates that there is a thermocouple failure, replace the oven control. If
the oven control indicates a temperature reading but the oven will not heat,
proceed.
WITH POWER ON AND THERMOCOUPLE ATTACHED TO THE OVEN CONTROL:
Measure the DC millivolt output of the thermocouple. Refer to the
thermocouple chart on page 66 for proper millivolt readings. If these
readings are not achieved, replace thermocouple.
mercury contactor, replace the oven control. If there is voltage output to the
mercury contactor, proceed.
contactor will not activate, replace the mercury contactor.
Also check each contactor for high voltage input and output.
specification plate for rating information. If the amp draw is high or low,
check the individual elements for opens, shorts and proper resistance.
WITH POWER OFF: To check resistance of the elements, remove all leads
from the elements and use a digital multimeter.
The element resistance should be as follows: 208V – 27 Ω approx. 240V –
36Ω approx.
Replace heating elements as needed.
no voltage to the operating coil, but there is high voltage at the contactor
output, replace the mercury contactor.
cease to operate if overheating occurs. As the motor overheats and then
cools, this will cause the oven to cycle on and off intermittently. Improper
ventilation or lack of preventive maintenance may cause this. Also, most of
the problems listed under “Oven will not heat” can cause intermittent failure.
sure it is firmly in receptacle. Measure incoming power, call power co. if
needed.
thermostat will not hold for maximum oven temperature, and oven is not
exceeding temperature setting, check for proper location of capillary bulb in
its spring holder. If the capillary checks okay, replace the hi-limit thermostat.
voltage is present, trace wiring back to the oven power relay. If voltage is
present, check for 24 VAC at the transformer secondary. If there is primary
voltage but no secondary voltage, replace control transformer.
Conveyor motor runs,
but there is no speed
display
Conveyor motorCheck for supply voltage to the conveyor motor. If no voltage is present,
trace wiring back to the primary of the control transformer. If voltage is
present and the motor will not run, check the motor windings for opens or
shorts.
WITH POWER OFF: Check the motor windings as follows:
S/N: 2052462 and below Grey to Black 240Ω approx.
(Red Dot) Grey to Brown 240Ω approx.
Brown to Black 480Ω approx.
S/N: 2052463 and above Grey to Black 360Ω approx.
(Brown Dot) Grey to Brown 360Ω approx.
Brown to Black 720Ω approx.
If any of the above fails, replace conveyor motor.
Capacitor, conveyor motorCheck for shorts or grounds. Replace capacitor as needed. WARNING:
Capacitor has a stored charge, discharge before testing. S/N: 2052462 and
below (Red Dot) = 1.2mfd
S/N: 2052463 and above (Brown Dot) = 1.0mfd
Switch, conveyor reversingCheck continuity between switch terminals. Replace switch as needed.
Oven controlIf there is supply voltage to the motor, and the
motor, capacitor, and reversing switch check good, replace the oven control.
NOTE: Display will indicate “Belt Jam”
Oven controlCheck for output voltage from oven control to Hall Effect sensor (sensor is
located in conveyor motor). Measure voltage at the motor connector, red
wire and yellow wire. Voltage should be approx. 10VDC. If no voltage is
present, trace wiring back to oven control. If there is no voltage present at
the oven control, replace the oven control.
Conveyor motorIf there is voltage supplied to the Hall Effect sensor, check for a frequency
output from the Hall Effect sensor. Measure frequency across the yellow and
white wires at the motor connector.
Frequency reading should be approx. 25 – 100 Hz. If these readings are not
achieved, replace.
Oven controlIf the Hall Effect sensor readings are correct, but there is no speed indicated
Troubleshooting Guide – Impinger II Domestic 1130,1131,1132,1133 easyTouch, Electric
S/N: 2104100102813 and above (easyTouch controls)
ProblemCauseCorrection
UI blankOven not plugged in, panel breaker
tripped
Faulty fuses/fuse holderReplace fuses on back panel
Wiring IssueInspect UI cable for damage
Faulty UICheck for cracks or damaged screen
Faulty power switchCheck continuity through switch. Check for incoming 120VAC on terminals.
Faulty DC power supplyCheck for steady 120VAC input between #59 (N) and #74(L)
Faulty IO boardCheck for 24VDC input on (-V) and (+V) wires
UI screen locked up,
frozen, nonresponsive
to touch
Unable to read USBFaulty flash driveRetry with known good quality flash drive
Unable to load USB
files
Software issueTurn OFF the unit using the power switch, turn the
Damaged or cracked touchscreenInstall new UI with correct software revision
Incorrect USB formatMake sure flash drive is formatted using FAT32
USB cable disconnectedCheck if USB connector is seated properly
Faulty UICheck for cracks or damaged screen
Faulty flash driveRetry with known good quality flash drive
Files on flash drive incorrect or
corrupt
Faulty USB socketInspect USB socket for damage and replace if needed
Check panel breaker and plug
Ensure input voltage is within specifications
Inspect fuse holders for cracks and replace if needed
Unplug and plug the UI cable back in
Replace UI cable
Check cable connection to UI for fit
Install new UI with correct software revision
Replace if needed.
Check for steady 24VDC output between (+) and (-) wires
Check for physical damage on the circuit board. Replace if needed
Check cable connection to UI for fit
unit back ON after 30 seconds.
Check cable connection to UI for fit
Install new UI with correct software revision
Delete all files on flash drive and reload updated files
Oven fan will not runIncoming power supplyCheck circuit breakers, reset if required. Check power plug to be sure it is
firmly in receptacle. Measure incoming power, call power co. if needed.
Fuses, 10 Amp, motor, and controls Check, replace if necessary.
Hi-limit thermostat, Oven cavityTerminals are normally closed. If open, reset thermostat and retest. If
thermostat will not hold for maximum oven temperature, and oven is not
exceeding temperature setting, check for proper location of capillary bulb in
its spring holder. If the capillary checks okay, replace the hi-limit thermostat.
Switch, main powerCheck continuity between switch terminals. Replace switch as needed.
Main fan motorCheck for supply voltage at motor. If no voltage is present, trace wiring.
WITH POWER OFF: Check for opens, shorts or grounds. Turn fan blade to
check for locked rotor.
CapacitorCheck for shorts or grounds. (7mfd) WARNING: Capacitor has a stored
charge, discharge before testing
No control box cooling Incoming powerCheck circuit breakers, reset if required. Check fuses and hi-limit for an
open circuit or trips. Check power plug to be sure it is firmly in receptacle.
Measure incoming power, call power co. if needed.
Switch, main powerCheck continuity between switch terminals. Replace switch as needed.
Cooling fansCheck for supply voltage at cooling fans. If no voltage is present, trace
wiring back to power switch. If voltage is present, and motor does not run,
check for opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor.
Oven will not heatMain fan motorCheck for main fan operation. If it is not operating, refer to “Oven fan will not
run”.
Air pressure switchThis normally open switch should close when the main fan is activated. Test
between #64 and # 63. Refer to page 61 for proper adjustment.
Replace as needed.
PSU1 (Control Transformer)Check for 208 or 240VAC supply to the primary of the PSU1. If no voltage is
present, trace wiring back to the main power switch. If voltage is present,
check for 24VDC at the transformer secondary. If there is primary voltage,
but no secondary voltage, replace the PSU1 .
Incorrect model selected in UITurn OFF the unit using the power switch, turn the unit back ON after 30
seconds. The model displayed in the UI initialization screen should be 1100.
If it isn’t go to UI settings and select the correct model.
Oven will not heat, ctd. Thermocouple/ thermocouple
wiring (see QR chart on page 66)
I/O (Oven control)If the thermocouple checks good, but there is no voltage input to the SSRs,
SSR (Solid State Relay)Check for DC voltage to the SSRs
Component high limit thermostat
tripped
Heating element(s)Check the Amp draw on each power leg for proper load. Check the
Kitchen ventilation affecting
temperatures
Possible incorrect temperature
calibration
Uneven heatingFingers incorrectly installedMake sure fingers are installed correctly
Door not closed or does not close
properly
Overcooked or
undercooked product
Intermittent heatingThermal/overload of motorThe main fan motor is equipped with internal thermal protection and will
Incorrect temperature settingMake sure oven temperature is correct
Incorrect conveyor speedMake sure the conveyor is properly calibrated
Defective thermocouple/
thermocouple wiring
Verify the thermocouple is connected to the IO board
Inspect the thermocouple wires and connectors.
Check wires are not cut or disconnected
Check resistance for open probe. Resistance: 7Ω - 14Ω
Check DC voltage between red and yellow wires. Use chart on page 66 to
verify proper reading.
Check for opens, shorts or grounds
replace the oven control. If there is voltage input to the SSRs, proceed.
Measure SSRs output current. Inspect SSRs for damage. Replace if needed.
Check SSRs LEDs are turning ON and OFF continuously when there is a call
for heat
Turn the power switch OFF and wait for the machine to cooldown (this may
take upwards of one hour). Reset the high limit capillary thermostat located
on the machine rear panel. Inspect the high limit capillary thermostat
connections for damage. Turn the power switch ON. Check that the blower
motor is ON. If the condition persists, replace the high limit capillary
thermostat. (Trips point =662F +/-10%)
specification plate for rating information. If the amp draw is high or low,
check the individual elements for opens, shorts and proper resistance.
WITH POWER OFF: To check resistance of the elements, remove all leads
from the elements and use a digital multimeter.
The element resistance should be as follows:
208V – 27 Ω approx. 240V – 36Ω approx. Replace heating elements as
needed.
Check make up air from ventilation hood or air conditioning vents are
directed away from the oven
Check calibration and re-calibrate unit if needed
Verify door is closed correctly. Check latches and hinges. Check if there is
excessive gap between door and cavity
Verify the thermocouple is connected to the IO board
Inspect the thermocouple wires and connectors. Check wires are not cut or
disconnected
cease to operate if overheating occurs. As the motor overheats and then
cools, this will cause the oven to cycle on and off intermittently. Improper
ventilation or lack of preventive maintenance may cause this.
Temperature set point has not been
reached
Coupling loose or disconnectedTighten set screw on coupling
Belt link loose or disconnectedTighten belt, if needed replace belt link
Conveyor has stretched from useRemove adequate number of links to tighten the belt
Incorrectly installedVerify conveyor belt orientation. Shaft should be inserted into motor
Software issueTurn OFF the unit using the power switch, turn the unit back ON after 30
Failed or failing conveyor stepper
motor
Faulty IO board and/or built-in
motor drive
Faulty stepper drive (STR8)
(See chart on page 70)
If using the Press & Go menu recipes, wait until UI displays the “Ready” status
message
coupling
seconds.
Go to Manual Mode and change belt speed
Check for resistance on red and blue and again at yellow and white.
Resistance should be .65Ω (±10%).
Check for opens, shorts or grounds
Change conveyor belt direction in the UI's Settings Menu
Check for 24VDC input on (-V) and (+V) wires
Check wires are connected properly
Inspect IO board for damage and replace if needed
Check LEDs to identify alarm codes. Faults disable the motor and can be
cleared by cycling power to the drive.
Try the built-in self test. Anytime switch 8 is moved to the ON position, the
drive will automatically rotate the motor back and forth, two turns in each
direction. This feature can be used to confirm the motor is correctly wired,
selected and operational.
Check for 24VDC input on (-V) and (+V) wires
Check wires are connected properly
Inspect stepper motor drive for damage and replace if needed
Troubleshooting Guide – Impinger II Domestic Advantage Digital, Electric 1135
(Ovens with push button controls))
Old Model Number
N/A
ProblemCauseCorrection
Oven fan will not runIncoming power supplyCheck circuit breakers. Reset if required. Call power co. if needed.
Step down transformer
(480VAC-240VAC)
Fuses, 10 Amp, motor, and controls Check, replace if necessary.
Hi-limit thermostat, Oven cavityTerminals are normally closed. If open, reset thermostat and retest. If
Switch, main powerCheck continuity between switch terminals. Replace switch as needed.
Relay, oven startCheck for 240VAC supplied to coil of relay. If no voltage is present, trace
30 minute time delayCheck 240VAC at terminal #1 to #3 on time delay relay. If voltage is not
Relay, main fanCheck for 240VAC to coil of main fan relay. If no voltage is present, trace
Main fan motorCheck for supply voltage at motor. If no voltage is present, trace wiring back
CapacitorCheck for shorts or grounds. 7.5 MFD
No main fan cool
down
Main fan runs after 30
minute cool down
30 Minute time delayCheck for 240VAC at terminal #2 to #3 while the oven is “on”. Turn off the
Oven fan relayCheck for 240VAC to relay coil, if no voltage is present, trace wiring back to
Oven start relayContacts should open when main power switch is turned off. Replace relay
"
"
New Model NumberVoltageGas TypeHzPhase
1135-xxx-UN/A48060 HZ3
Verify line voltage in on wires 4A and 3A at 480VAC and output voltage is
240VAC on terminals 6 and 5
thermostat will not hold for maximum oven temperature, and oven is not
exceeding temperature setting, check for proper location of capillary bulb in
its spring holder. If the capillary checks okay, replace the hi-limit thermostat.
wiring back to main power switch. If voltage is present, check for pull
in of relay contacts. Replace relay as needed.
present, trace wiring back to the transformer. If voltage is present at
terminal #1, check for 240VAC at terminal #2 to #3. If no voltage is present,
and oven start relay is closed, replace 30 minute time delay relay.
wiring back to 30 minute time delay relay. If voltage is present, check to
insure that relay contacts are closing. Replace relay as needed.
to main fan relay.
WITH POWER OFF: Check for opens, shorts or grounds. Turn fan blade to
check for locked rotor.
WARNING: Capacitor has a stored charge, discharge before testing.
main switch, 240VAC should continue to be present for 30 minutes. If
voltage is not present for approx. 30 minutes, replace the 30 minute time
delay.
30 minute time delay. If voltage is present, be sure that relay contacts stay
closes during the 30 minute cool down. Replace relay as needed.
No control box cooling Incoming powerCheck circuit breakers, reset if required. Check fuses, transformer, and hi-
No automatic control
box cooling
Oven will not heatMain fan motorCheck for main fan operation. If it is not operating, refer to “Oven fan will not
30 Minute time delay240VAC at terminal #2 should discontinue approx. 30 minutes after main
power is switched off. If the oven start relay contacts are open, and the
voltage continues at terminal #2 of the 30 minute timer, for more than 30
minutes, replace the 30 minute time delay.
Oven fan relayCheck to insure that the relay contacts are opening after the relay coil is de-
energized. Replace relay as needed.
30 Minute time delayNOTE: On/Off operation of the main power switch will set the timer to 30
minutes. If the timer is accidentally reset, turn off the main circuit breaker for
15 seconds to cancel.
limit for an open circuit or trips. Check power plug to be sure it is firmly in
receptacle. Measure incoming power, call power co. if needed.
Switch, main powerCheck continuity between switch terminals. Replace switch as needed.
Cooling fan(s)Check for supply voltage at cooling fan. If no voltage is present, trace wiring
back to power switch. If voltage is present, and motor does not run, check
for opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor.
Incoming power supplyCheck circuit breakers, reset if required. Check fuses, transformer, and hi-
limit for an open circuit or trips. Check power plug to be sure it is firmly in
receptacle. Measure incoming power, call power co. if needed.
Cooling fan thermostatCheck the cooling fan thermostat. (Thermostat closes at 120 F and opens at
100 F). With the cooling fan thermostat pre-heated, check for continuity. If
switch is open, replace cooling fan thermostat.
Cooling fan(s)Check for supply voltage at cooling fan. If no voltage is present, trace wiring
back to cooling fan thermostat. If voltage is present, and motor does not
run, check for opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor.
run”.
Air pressure switchThis normally open switch should close when the main fan is activated.
Refer to page 61 for proper adjustment. Replace as needed.
Control transformerCheck for 240VAC supply to the primary of the control transformer. If no
voltage is present, trace wiring back to the main power switch. If voltage is
present, check for 24VAC at the transformer secondary. If there is primary
voltage, but no secondary voltage, replace the control transformer.
Oven controlCheck for 24VAC supply to control. If no voltage is present, trace wiring
back to control transformer. If 24VAC is present, check for a read-out on the
display. If there is 24VAC supplied, but there is no read-out on the control
display, replace the oven control.
If there is a read-out on the control, set the control to maximum
temperature (see installation operations manual for temperature
adjustment).
With the control set at maximum temperature, check for supply voltage at
mercury contactor. If there is voltage at the mercury contactor, proceed to
“mercury contactor” for next check. If there is no voltage at the mercury
contactor, trace wiring back to the oven control. If there is no voltage output
at the oven control, check the read-out on the control. If the control reads
“PROBE FAIL”, this indicates that the thermocouple has failed or become
ThermocoupleWITH POWER ON AND THERMOCOUPLE ATTACHED TO THE OVEN
Oven controlIf the thermocouple checks good, but the oven control display indicates
Mercury contactorCheck for supply voltage to the contactor coil. If voltage is present and the
Heating element(s)Check the Amp draw on each power leg for proper load. Check the
Oven heats with
switch off
Intermittent heatingThermal/overload of motorThe main fan motor is equipped with internal thermal protection and will
Conveyor(s) will not
run
Mercury contactorThe mercury contactor has probably failed in the closed position. If there is
Power supplyCheck circuit breakers, reset if required. Check power plug to be
Fuse, 10 AmpCheck, replace if necessary.
Fuse holderCheck, replace if necessary.
TransformerCheck, replace if necessary.
Hi-limit thermostat, oven cavityTerminals are normally closed. If open, reset thermostat and retest. If
Power switchCheck continuity between switch terminals. Replace switch as needed.
Control transformerCheck for supply voltage to the primary of the control transformer. If no
Check to be sure that the thermocouple is securely connected to the oven
control. If the thermocouple is connected to the oven control, and the
control indicates “PROBE FAIL”, disconnect the thermocouple from the oven
control and measure the resistance of the thermocouple. The thermocouple
should read approx. 11Ω. If these readings are not achieved, replace the
thermocouple. If these readings are correct proceed.
CONTROL: Measure the DC millivolt output of the thermocouple. Refer to
the thermocouple chart on page 66 for proper millivolt readings. If these
readings are not achieved, replace thermocouple.
that there is a thermocouple failure, replace the oven control. I the oven
control indicates a temperature reading but the oven will not heat, proceed.
If the thermocouple checks good, but there is no voltage output to the
mercury contactor, replace the oven control. If there is voltage output to the
mercury contactor, proceed.
contactor will not activate, replace the mercury contactor.
Also check each contactor for high voltage input and output.
specification plate for rating information. If the amp draw is high or low,
check the individual elements for opens, shorts and proper resistance.
240VAC element = 36Ω
WITH POWER OFF: To check resistance of the elements, remove all leads
from the elements and use a digital multimeter.
The element resistance should be as follows: 480V – ohms approx. Replace
heating elements as needed.
no voltage to the operating coil, but there is high voltage at the contactor
output, replace the mercury contactor.
cease to operate if overheating occurs. As the motor overheats and then
cools, this will cause the oven to cycle on and off intermittently. Improper
ventilation or lack of preventive maintenance may cause this. Also, most of
the problems listed under “Oven will not heat” can cause intermittent failure.
sure it is firmly in receptacle. Measure incoming power, call power co. if
needed.
thermostat will not hold for maximum oven temperature, and oven is not
exceeding temperature setting, check for proper location of capillary bulb in
its spring holder. If the capillary checks okay, replace the hi-limit thermostat.
voltage is present, trace wiring back to the switch. If voltage is present,
check for 24 VAC at the transformer secondary. If there is primary voltage
but no secondary voltage, replace control transformer.
Conveyor motor runs,
but there is no speed
display
Conveyor motorCheck for supply voltage to the conveyor motor. Ifno voltage is present,
trace wiring back to the primary of the control transformer. If voltage is
present and the motor will not run, check the motor windings for opens or
shorts. WITH POWER OFF: Check the motor windings as follows:
S/N: 2052462 and below Grey to Black 240Ω approx.
(Red Dot) Grey to Brown 240Ω approx.
Brown to Black 480Ω approx.
S/N: 2052463 and above Grey to Black 360Ω approx.
(Brown Dot) Grey to Brown 360Ω approx.
Brown to Black 720Ω approx.
If any of the above fails, replace conveyor motor.
Capacitor, conveyor motorCheck for shorts or grounds. Replace capacitor as needed.
WARNING: Capacitor has a stored charge, discharge before testing.
S/N: 2052462 and below = 1.2mfd
S/N: 2052463 and above = 1.0mfd
Switch, conveyor reversingCheck continuity between switch terminals. Replace switch as needed.
Oven controlIf there is supply voltage to the motor, and the motor, capacitor, and
reversing switch check good, replace the oven control.
NOTE: Display will indicate “Belt Jam”
Oven controlCheck for output voltage from oven control to Hall Effect sensor (sensor is
located in conveyor motor). Measure voltage at the motor connector, red
wire and yellow wire. Voltage should be approx. 10VDC. If no voltage is
present, trace wiring back to oven control. If there is no voltage present at
the oven control, replace the oven control.
Conveyor motorIf there is voltage supplied to the Hall Effect sensor, check for a frequency
output from the Hall Effect sensor. Measure frequency across the yellow and
white wires at the motor connector.
Frequency reading should be approx. 25 – 100 Hz. If these readings are not
achieved, replace conveyor motor. If the readings are achieved, proceed.
Oven controlIf the Hall Effect sensor readings are correct, but there is no speed indicated
Troubleshooting Guide – Impinger II Non-Domestic Advantage Digital, Electric
(Ovens with push button controls))
Old Model Number
1164-000-EA
1164-080-EAN/A400/23050 HZ3
N/A
ProblemCauseCorrection
Oven fan will not runIncoming power supplyCheck breaker, reset if required. Check power plug to be sure it is firmly in
Oven cavity hi-limit thermostatTerminals are normally closed, opens at 660°F (350°C). If open, reset and test
Control Box Hi-limitCheck if open, replace if necessary.
Fuse, 10 ampCheck, replace if necessary.
Fuse holderCheck, replace if necessary.
Switch, main fanWith power off, check continuity between switch terminals. Replace
Motor, main fanCheck for opens, shorts or grounds. With power off, turn fan blade to check
CapacitorCheck for shorts or grounds. 7.5
No control box cooling Incoming power supplyCheck breaker, reset if required. Check power plug to be sure it is
Oven cavity hi-limit thermostatTerminals are normally closed, opens at 660°F (350°C). If open, reset and test
Fuse, 10 ampCheck, replace if necessary.
Fuse holderCheck, replace if necessary.
Cooling fan thermostatCheck the cooling fan thermostat (thermostat closes at 120°F and opens at
Cooling fanLine voltage should now be at the cooling fan. If voltage is present, check
Oven will not heatMain fanIf not operating, refer to “Oven fan will not run”.
Control transformerCheck for supply voltage to the primary of control transformer. If no voltage
Air pressure switchCheck air switch terminals for supply voltage to terminals “NO” and
"
"
"
New Model NumberGasVoltageHzPhase
1164-xxx-E or (V)
1134-xxx-NN/A380/20850 HZ3
receptacle. Measure incoming power, call power co. if needed.
oven for proper operation. If thermostat will not hold for maximum oven
temperature, and oven is not exceeding control setting, check for proper
location of capillary bulb ion its spring holder. If above checks are okay,
replace hi-limit thermostat.
as needed.
for locked rotor.
WARNING: Capacitor has a stored charge, discharge before testing.
firmly in receptacle. Measure incoming power, call power company if
needed.
oven for proper operation. If thermostat will not hold for maximum oven
temperature, and oven is not exceeding control setting, check for proper
location of capillary bulb in its spring holder. If above checks are okay,
replace hi-limit thermostat.
100°F). With the cooling fan thermostat pre-heated, check for continuity. If
thermostat is open, replace cooling fan thermostat.
motor for opens, shorts or grounds. With power off, check for locked rotor.
is present, trace wiring back to filter. If voltage is present, check for 24VAC at
transformer secondary. If there is primary voltage, but no secondary voltage,
replace control transformer.
“COM”. If voltage is present on one side only, check for air tube blockage
or misalignment. If these are okay, adjust air pressure switch or replace if
necessary.
Conveyor will not run
Display reads”Belt
Jam,” ctd.
Conveyor motor runs,
but there is no speed
control
Switch, main fanWith power off, check continuity between switch terminals. Replace as
needed.
Control transformerCheck for supply voltage to the primary of control transformer. If no voltage
is present, trace wiring back to oven fan switch. If voltage is present, check
for 24VAC at transformer secondary. If there is primary voltage, but no
secondary voltage, replace control transformer.
Conveyor motorCheck for supply voltage to the conveyor motor at wire #10 to neutral. If
no voltage is present, trace wiring back to the oven fan switch. If voltage is
present, but the motor will not run, check the motor windings for opens or
shorts. If any of the above fail, replace the conveyor motor.
S/N: 2052462 and below Grey to Black 240Ω approx.
(Red Dot) Grey to Brown 240Ω approx.
Brown to Black 480Ω approx.
S/N: 2052463 and above Grey to Black 360Ω approx.
(Brown Dot) Grey to Brown 360Ω approx.
Brown to Black 720Ω approx.
Capacitor, conveyor motorCheck for shorts or grounds. Replace capacitor as needed.
WARNING: Capacitor has a stored charge, discharge before testing.
S/N: 2052462 and below = 1.2mfd
S/N: 2052463 and above = 1.0mfd
Switch, conveyor reversingCheck continuity between switch terminals. Replace switch as needed.
Oven controlIf there is voltage supplied to the motor, and the motor, capacitor and
reversing switch check good, replace the oven control.
Oven controlCheck for output voltage from oven control to Hall Effect sensor (sensor is
located in the conveyor motor). Measure voltage at the motor connector,
red wire, and yellow wire. Voltage should be approx. 10VDC. If no voltage is
present, trace wiring back to oven control. If there is no voltage output at
the oven control, replace oven control.
Conveyor motorIf there is voltage supplied to the Hall Effect sensor, check for a frequency
output from the Hall Effect sensor. Measure frequency across the yellow and
white wires in the motor connector.
Frequency reading should be approx. 25-100 Hz. If these readings are not
achieved, replace conveyor motor. If the readings are achieved, proceed.
Oven controlIf the Hall Effect sensor readings are correct, but there is no speed indicated
Troubleshooting Guide – Impinger II International 1164 easyTouch, Electric
S/N: 2201100100578 and above (easyTouch controls)
ProblemCauseCorrection
UI blankOven not plugged in, panel breaker
tripped
Faulty fuses/fuse holderReplace fuses on back panel
Wiring IssueInspect UI cable for damage
Faulty UICheck for cracks or damaged screen
Faulty power switchCheck continuity through switch. Check for incoming 120VAC on terminals.
Faulty DC power supplyCheck for steady 120VAC input between #59 (N) and #74(L)
Faulty IO boardCheck for 24VDC input on (-V) and (+V) wires
UI screen locked up,
frozen, nonresponsive
to touch
Unable to read USBFaulty flash driveRetry with known good quality flash drive
Unable to load USB
files
Software issueTurn OFF the unit using the power switch, turn the unit back ON after 30
Damaged or cracked touchscreenInstall new UI with correct software revision
Incorrect USB formatMake sure flash drive is formatted using FAT32
USB cable disconnectedCheck if USB connector is seated properly
Faulty UICheck for cracks or damaged screen
Faulty flash driveRetry with known good quality flash drive
Files on flash drive incorrect or
corrupt
Faulty USB socketInspect USB socket for damage and replace if needed
Check panel breaker and plug
Ensure input voltage is within specifications
Inspect fuse holders for cracks and replace if needed
Unplug and plug the UI cable back in
Replace UI cable
Check cable connection to UI for fit
Install new UI with correct software revision
Replace if needed.
Check for steady 24VDC output between (+) and (-) wires
Check for physical damage on the circuit board. Replace if needed
Check cable connection to UI for fit
seconds.
Check cable connection to UI for fit
Install new UI with correct software revision
Delete all files on flash drive and reload updated files
Oven fan will not runIncoming power supplyCheck breaker, reset if required. Check power plug to be sure it is firmly in
receptacle. Measure voltage.
Fuses, 10 Amp / fuse holdersCheck, replace if necessary.
Hi-limit thermostat, Oven cavityTerminals are normally closed, opens at 660°F (350° C). If open, reset and
test oven for proper operation. If thermostat will not hold for maximum
oven temperature, and oven is not exceeding control setting, check for
proper location of capillary bulb ion its spring holder. If above checks are
okay, replace hi-limit thermostat.
Control Box Hi-limitCheck if open, replace if necessary.
Switch, main powerCheck continuity between switch terminals. Replace switch as needed.
Main fan motorCheck for supply voltage at motor. If no voltage is present, trace wiring.
WITH POWER OFF: Check for opens, shorts or grounds. Turn fan blade to
check for locked rotor.
CapacitorCheck for shorts or grounds. (7mfd) WARNING: Capacitor has a stored
charge, discharge before testing
No control box cooling Incoming powerCheck circuit breakers, reset if required. Check fuses and hi-limit for an
open circuit or trips. Check power plug to be sure it is firmly in receptacle.
Measure incoming power, call power co. if needed.
Switch, main powerCheck continuity between switch terminals. Replace switch as needed.
Cooling fansCheck for supply voltage at cooling fans. If no voltage is present, trace
wiring back to power switch. If voltage is present, and motor does not run,
check for opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor.
Oven will not heatMain fan motorCheck for main fan operation. If it is not operating, refer to “Oven fan will not
run”.
Air pressure switchThis normally open switch should close when the main fan is activated. Test
between #64 and # 63. Refer to page 61 for proper adjustment. Replace as
needed.
PSU1 (Control Transformer)Check for 208 or 240VAC supply to the primary of the PSU1. If no voltage is
present, trace wiring back to the main power switch. If voltage is present,
check for 24VDC at the PSU1. If there is input 208/240VAC, but no 24VAC
output, replace the PSU1 .
Incorrect model selected in UITurn OFF the unit using the power switch, turn the unit back ON after 30
seconds. The model displayed in the UI initialization screen should be 1100.
If it isn’t go to UI settings and select the correct model.
Thermocouple/ thermocouple
wiring
(see chart on page 66)
I/O (Oven control)If the thermocouple checks good, but there is no voltage input to the SSRs,
SSR (Solid State Relay)Check for DC voltage to the SSRs
Component high limit thermostat
tripped
Heating element(s)Check the Amp draw on each power leg for proper load. Check the
Kitchen ventilation affecting
temperatures
Possible incorrect temperature
calibration
Air pressure switchThis normally open switch should close when the main fan is activated. Test
Verify the thermocouple is connected to the IO board
Inspect the thermocouple wires and connectors.
Check wires are not cut or disconnected
Check resistance for open probe. Resistance: 7Ω - 14Ω
Check DC voltage between red and yellow wires. Use chart on page 66 to
verify proper reading.
Check for opens, shorts or grounds
replace the oven control. If there is voltage input to the SSRs, proceed.
Measure SSRs output current. Inspect SSRs for damage. Replace if needed.
Check SSRs LEDs are turning ON and OFF continuously when there is a call
for heat
Turn the power switch OFF and wait for the machine to cool down (this may
take upwards of one hour). Reset the high limit capillary thermostat located
on the machine rear panel. Inspect the high limit capillary thermostat
connections for damage. Turn the power switch ON. Check that the blower
motor is ON. If the condition persists, replace the high limit capillary
thermostat. (Trips point =662F +/-10%)
specification plate for rating information. If the amp draw is high or low,
check the individual elements for opens, shorts and proper resistance.
WITH POWER OFF: To check resistance of the elements, remove all leads
from the elements and use a digital multimeter.
The element resistance should be as follows:
230V – 33 Ω approx. Replace heating elements as needed.
Check make up air from ventilation hood or air conditioning vents are
directed away from the oven
Check calibration and re-calibrate unit if needed
between #64 and # 63. Refer to page 61 for proper adjustment. Replace as
needed.
Uneven heatingFingers incorrectly installedMake sure fingers are installed correctly
Door not closed or does not close
properly
Overcooked or
undercooked product
Intermittent heatingThermal/overload of motorThe main fan motor is equipped with internal thermal protection and will
Conveyor does not
move
Incorrect temperature settingMake sure oven temperature is correct
Incorrect conveyor speedMake sure the conveyor is properly calibrated
Defective thermocouple/
thermocouple wiring
Temperature set point has not been
reached
Coupling loose or disconnectedTighten set screw on coupling
Belt link loose or disconnectedTighten belt, if needed replace belt link
Conveyor has stretched from useRemove adequate number of links to tighten the belt
Incorrectly installedVerify conveyor belt orientation. Shaft should be inserted into motor
Software issueTurn OFF the unit using the power switch, turn the unit back ON after 30
Failed or failing conveyor stepper
motor
Faulty IO board and/or built-in
motor drive
Faulty stepper drive (STR8)
(See chart on page 70)
Verify door is closed correctly. Check latches and hinges. Check if there is
excessive gap between door and cavity
Verify the thermocouple is connected to the IO board
Inspect the thermocouple wires and connectors. Check wires are not cut or
disconnected
cease to operate if overheating occurs. As the motor overheats and then
cools, this will cause the oven to cycle on and off intermittently. Improper
ventilation or lack of preventive maintenance may cause this.
If using the Press & Go menu recipes, wait until UI displays the “Ready” status
message
coupling
seconds.
Go to Manual Mode and change belt speed
Check for resistance on red and blue and again at yellow and white.
Resistance should be .65Ω (±10%).
Check for opens, shorts or grounds
Change conveyor belt direction in the UI’s Settings Menu
Check for 24VDC input on (-V) and (+V) wires
Check wires are connected properly
Inspect IO board for damage and replace if needed
Check LEDs to identify alarm codes. Faults disable the motor and can be
cleared by cycling power to the drive.
Try the built-in self test. Anytime switch 8 is moved to the ON position, the
drive will automatically rotate the motor back and forth, two turns in each
direction. This feature can be used to confirm the motor is correctly wired,
selected and operational.
Check for 24VDC input on (-V) and (+V) wires
Check wires are connected properly
Inspect stepper motor drive for damage and replace if needed
Before removing or installing any component in the
Impinger Oven, be sure to disconnect all electrical
power and shut off gas supply.
Ignition Control
REPLACEMENT
Shut off power at main breaker:
1. Remove conveyor.
2. Remove appropriate control box cover.
3. Disconnect wires from plug-in terminal strip, note wire
numbers and location.
4. Remove two (2) screws from mounting bracket and
remove.
5. Reassemble in reverse order. Check system operation.
Burner Control(Honeywell) S/N2045408 and
Above
REPLACEMENT
Shut off power at main breaker:
1. Remove appropriate control box cover.
2. Unplug module from gas valve.
3. Replace new module and plug into valve.
4. Replace appropriate control box cover.
Air Pressure Switch
REPLACEMENT
Shut off power at main breaker:
1. Remove conveyor.
2. Remove appropriate control box cover.
3. Disconnect wires from switch making note of wire
number and location for re-installation.
4. Remove air tube from switch assembly.
5. Remove switch from wire hanger.
6. Install new switch in reverse, make sure air tube is not
blocked or misaligned.
7. Be sure to calibrate new air pressure switch.
Calibration:Turn adjusting screw on air pressure switch
fully counter clockwise. Turn oven “on”. Turn adjusting
screw on air pressure switch clockwise until heat shuts
off. Turn adjusting screw on air pressure switch counter
clockwise ¼ turn.
NOTE: To adjust air pressure switch, remove cover from the
switch to expose adjusting screw. To increase sensitivity,
turn screw counter-clockwise; to decrease sensitivity, turn
screw clockwise. Check for proper line voltage switching
from NC to NO as the air pressure switch closes.
Conveyor Drive Motor
REPLACEMENT
Shut off power at main breaker:
1. Remove conveyor.
2. Remove conveyor rear cover.
3. Disconnect wiring from motor and mark for reassembly.
4. Remove coupler assembly from motor shaft.
5. Remove four (4) screws and remove conveyor motor
and mounting bracket.
6. Remove mounting bracket from conveyor motor
assembly.
7. Reassemble in reverse order.
Capacitor, Conveyor Motor
REPLACEMENT
Shut off power at main breaker:
1. Remove rear cover.
2. Discharge capacitor before removing wires. Mark wires
for reassembly.
3. Remove mounting screw and remove capacitor.
4. Reassemble in reverse order.
5. Warning: Capacitor has a stored charge, discharge
before handling or testing.
Reversing Switch
REPLACEMENT
Shut off power at main breaker:
1. Remove rear cover.
2. Disconnect wiring from reversing switch and mark for
reassembly.
3. Remove mounting nut and remove reversing switch.
4. Reassemble in reverse order and check system
operation.
2. Remove two (2) wires, note wire number and location.
3. Remove locknut on backside of fuse holder and push
out.
4. Reinstall in reverse order and check system operation.
Gas Valve
REPLACEMENT AND ADJUSTMENT
Shut off power at main breaker and shut off gas:
1. Remove conveyor panel front cover.
2. Disconnect the gas piping from the back of the unit.
3. Remove the four (4) screws from the incoming nipple
mounting bracket.
4. Remove incoming nipple.
5. Disconnect wiring from the gas valve and mark for
reassembly.
6. Remove pilot tube. Disconnect pipe union just above
gas valve and remove assembly.
7. Reassemble in reverse order (check all pipe fittings for
leaks).
8. Check and adjust manifold pressure. Remove pressure
tap located in gas piping above the gas valve prior to
the burner orifice and install manometer. Adjustment
screw is located on the front of the valve. Remove
plastic cap and adjust as needed: 3.5" W.C. for natural
gas, 10" W.C. for LP.
9. Reassemble in reverse order and check for leaks around
cover.
HSI
REPLACEMENT
Shut off power at main breaker and shut off gas:
1. Remove appropriate control box cover.
2. Disconnect wires from burner control then remove the
gas valve and piping.
3. Remove three (3) mounting screws and remove burner
venturi.
4. Remove mounting nut and remove hot surface igniter
assembly.
5. Reassemble in reverse order and check system
operation.
6. Check all gas line fittings for leaks.
Igniter/Sensor Assembly (Export)
REPLACEMENT
Shut off power at main breaker and shut off gas:
1. Remove rear cover.
2. Remove gas valve assembly. (see “Gas Valve”)
3. Remove temperature regulation valve. (see
"Temperature Regulating Valve")
4. Disconnect all wires from burner and mark for
reassembly.
5. Remove screws from burner tube and remove burner
venturi.
6. Remove two (2) mounting screws and remove igniter/
sensor assembly from burner venturi.
7. Reassemble in reverse order and check system
operation. Check all gas line fittings for leaks.
Temperature Regulating Valve
REPLACEMENT
Shut off power at main breaker and shut off gas:
1. Remove appropriate control box cover.
2. Remove bypass tube from burner manifold.
3. Remove wiring from valve and mark for reassembly.
4. Remove four mounting nuts from burner manifold and
disconnect pipe union.
5. Remove temperature regulation valve and piping from
oven.
6. Reassemble in reverse order. Check all gas line fittings
for leaks.
Bypass Orifice
REPLACEMENT
Shut off power at main breaker and shut off gas:
1. Remove appropriate control box cover.
2. Remove pilot tube from bypass orifice and remove
orifice.
3. Reassemble in reverse order and check system
operation. Check all gas connections for leaks.
2. Disconnect heating element wires and mark for
reassembly.
3. Disconnect motor wiring and mark for reassembly.
4. Remove oven back from oven.
5. Remove fan shroud.
6. Heating element may now be unbolted and removed.
7. Check new heating element for proper voltage.
Reassemble in reverse order and check for proper
operation.
Burner Blower Motor
REPLACEMENT
Shut off power at main breaker:
1. Remove rear cover.
2. Unplug motor connector.
3. Remove three (3) screws from blower tube at burner
housing.
4. Remove air shutter assembly from old motor for
installation on new motor assembly.
5. Reassemble in reverse order and check system
operation.
NOTE: Check air shutter at approximately ½ open and
adjust to get a blue flame with an occasional tip of
yellow under high flame. A view port in the burner
assembly should be used to observe flame.
Control and Burner Transformer
REPLACEMENT
Shut off power at main breaker:
1. Remove appropriate control box cover.
2. Remove two (2) mounting screws from transformer
base, wiring and mark for reassembly, and remove
transformer.
3. Reassemble in reverse order and check system
operation.
Bearing, Conveyor
REPLACEMENT
Shut off power at main breaker:
1. Remove conveyor from oven and place on a flat work
surface.
2. Remove roll pin from shaft then the connecting links
from conveyor belting.
3. Move drive shaft or idler shaft toward end of conveyor,
and shaft with bearing will now slip out of conveyor
frame.
4. Remove bearing from conveyor shaft.
5. Reassemble in reverse order and check system
operation.
Oven Control and Display
REPLACEMENT
Shut off power at main breaker:
1. Remove control box cover and front panel.
2. Remove all wiring connections and mark for
reassembly.
3. Remove oven control by pulling control from the
mounting pins. Remove control from oven.
4. Before installing new oven control, set voltage jumper
(located at the bottom center of the oven control) to
the proper voltage/frequency (120V or 240V, 50HZ
or 60HZ) position. Install the four (4) pushbutton
extensions (included with the oven control) by pushing
the extensions onto the four (4) set buttons on control.
5. Reassemble in reverse order and check system
operation.
NOTE: Set the oven control for the proper operating
mode. The 1100 series ovens use a single temperature
control system. The oven control must be set to the
proper operating mode. Set the control as follows: With
the oven power switch “off”, depress the “time” and “up”
buttons and turn the oven “on”. Control will indicate
”Imp I or Imp II”. Release the buttons, The control will
indicate “Temp to store”. Press the “up” or “down” until
”Imp II” appears on the display. Press the “temp” button.
The control is now set for single burner operation.
2. Remove all wires from the power filter, note all wire
numbers for reinstallation.
3. Reassemble in reverse order and check system
operation.
easyTouch Controller
REPLACEMENT
Shut off power at main breaker:
1. Remove conveyor assembly.
2. Remove front control box cover.
3. Remove HDMI cable and mark for reassembly.
4. Remove six (6) screws that hold touchscreen in place.
Remove touchscreen.
5. Reassemble in reverse order and check system
operation.
NOTE:Set the oven control for the proper operating
mode. The easyTouch controller has several options,
from the home screen select the settings icon. The
password is 458756 and select the down arrow twice.
Make sure the 1100 series is highlighted and verify how
many belts the oven has.
I/O Board
REPLACEMENT
Shut off power at main breaker:
1. Remove conveyor assembly.
2. Remove front control box cover.
3. Disconnect all wires and mark for reassembly.
4. Remove I/O by pulling it from the mounting pins.
Remove the I/O from oven.
5. Reassemble in reverse order and check system
operation.
Mercury Contactor
REPLACEMENT
Shut off power at main breaker:
1. Remove rear control box cover.
2. Disconnect all wires and mark for reassembly.
3. Remove screws from mounting bracket and remove
contactor.
4. Reassemble in reverse order and check system
operation.
Solid State Relay
REPLACEMENT
Shut off power at main breaker:
1. Remove rear control box column.
2. Disconnect all wires and mark for reassembly.
3. Remove screws from mounting bracket and remove
contactor.
4. Reassemble in reverse order and check system
operation.
24 Volt Power Supply
REPLACEMENT
Shut off power at main breaker:
1. Remove conveyor assembly.
2. Remove front control box cover.
3. Disconnect all wires and mark for reassembly.
4. Remove four (4) screws that hold power supply in
place. Remove power supply.
5. Reassemble in reverse order and check system
operation.
4. Remove two (2) screws that hold conveyor motor driver
in place. Remove conveyor motor driver.
5. Reassemble in reverse order and check system
operation.
Conveyor Motor Driver
LED Flash Code
In the event of a drive fault or alarm the green light
will flash one or two times followed by a series of
red flashes the pattern will repeat until the alarm is cleared.
LED Flash CodeDescription
One solid green light
Conveyor Motor Driver
Dip Switches Configuration
The optional stepper controller will have several dip
switches on it. When replacing this controller makes sure
the following switches are in the proper sequence.
Switch 1, 2, 5, 7, and 8 are off.
Switch 3, 4, and 6 are on.
The rotary switch is set to 9.
When switch eight is moved to the on position the drive
will automatically rotate the motor back and forth two turns
in each direction this feature can be used to confirm the
motor is correctly wired, selected and operational.
No alarm, motor disabled
Green light flashing
Red light flashing
One green light followed by 4 red flashes
One green light followed by 5 red flashes
One green light followed by 6 red flashes
Two green flashes followed by 3 red flashes
Two green flashes followed by 4 red flashes
No alarm, motor enabled.
Configuration or memory error; contact
the factory for assistance.
How many ovens are at this location ______________ Is this oven the: Top Middle Bottom
Customer’s Name: ____________________________________ Store #: (If Applicable) ____________________________
Address: __________________________________________________ City: ____________________________________
State: _____________________ Zip Code: _____________________ Location’s PH#: _____________________________
Service Agency: ___________________________________________ Technician: ________________________________
1. Has the oven been running prior to start-up, YES / NO If “YES” how many days? _______________________
2. Is restraining device in place? YES / NO If “NO” explain ______________________________________________________________
3. Make sure that single and/or stacked ovens are installed as required in the Installation and Operating Instructions for this model. Please
Provide a picture of the oven in place:
Single ________ Stacked ________ Legs ________ Stand ________ Casters ________ Other _________
4. Instruct operator and staff how to disassemble, clean, and "reassemble" the oven. Include fingers, retaining brackets and conveyors.
5. Check to insure proper electrical connection of each oven. Is grounding lug in junction box connected to proper ground wire? _____
Does each oven have a separate electrical service (circuit breaker)? ______________
Does each oven have its own neutral wire which runs all the way back to the circuit breaker panel? _________________________
NOTE: IF INCOMING VOLTAGES ARE NOT CORRECT, DO NOT OPE RATE OVEN(S).
6. Is Lincoln gas shut off valve (369081 supplied) installed properly on each oven? ____________
Note: Check for gas leaks with bubble soap, and DO NOT OPPERATE OVEN(S) if a leak can not be tightened.
7. What is the incoming main line gas pressure at the oven with oven turned OFF: _________"WC/MB/MM
Incoming main line gas pressure at each oven with ovens turned ON: _______"WC/MB/MM.
8. With all ovens “ON” Set gas manifold pressure and record here:
Right Side ____________"WC/MB/MM Left side (1600 series only) ____________"WC/MB/MM
9. With ovens “OFF”, check and record incoming voltages.
Please refer to specification plate for proper voltages and schematic for proper connections.
L1-N_______VAC L1-L2______VAC
L2-N_______VAC L2-L3______VAC
L3-N_______VAC L1-L3______VAC
10. Check and record incoming voltage and amperage (electric ovens only).
NOTE: HEATING ELEMENTS MUST BE "ON".
L1-N______VAC L1-L2______VAC L1______Amps
L2-N______VAC L2-L3______VAC L2______Amps
L3-N______VAC L1-L3______V AC L3______Amps
11. Check conveyor belt speed. (Leading edge in, leading edge out) ______________________________________
12. With oven on, disconnect power wire to main fan motor. As fan gradually slows, safety circuits will open, removing power from "Heating
System". If this does not happen, adjust controls accordingly. ____________________
13. Check and calibrate oven temperature _________ (See service manual for proper calibration procedure).
14. Perform smoke candle test (P/N:369361).
(Circle one) NO HOOD 0% 20% 40% 60% 80% 100%
Note: For “Ventilation Information” Please refer to the installation operations manual.
15. T urn off the ovens(s) and record the time elapsed until oven cool down is complete and the final temperature reading. NOTE: Not all
ovens have cool down timers. Time (if applicable) ____________ Temp _______________
I _________________________, accept this Start-up to be complete and accurate on this date of __________________.
NOTE: START UP FORM MUST BE FILLED OUT COMPLETELY AND CORRECTLY BEFORE CREDIT WILL BE ISSUED!
Please send this Start up and pictures of the oven to your warranty department for proper filling.
Lincoln Foodservice (“Lincoln”) warrants this product to be free from
defects in material and workmanship as follows:
• 2424 Electric, Electric Ventless and Gas ovens for a period of two (2)
years from date of purchase
• Equipment must be installed within 12 months from date of
manufacture.
Note: Warranty terms may vary based on agreement at time of purchase.
During the warranty period, Lincoln shall repair or, at Lincoln’s option,
replace parts determined by Lincoln to be defective in material or
workmanship, and with respect to services, shall re-perform any defective
portion of said services. The foregoing shall be the sole obligation of
Lincoln under this Limited Warranty with respect to the equipment,
products and services. With respect to equipment, materials, parts and
accessories manufactured by others, Lincoln’s sole obligation shall be
to use reasonable efforts to obtain the full benefit of the manufacturers’
warranties. Lincoln shall have no liability, whether in contract, tort,
negligence, or otherwise, with respect to non-Lincoln manufactured
products.
WHO IS COVERED
This Limited Warranty is available only to the original purchaser of the
product and is not transferable.
EXCLUSIONS FROM COVERAGE
• Repair or replacement of parts required because of misuse, improper
care or storage, negligence, alteration, accident, use of incompatible
supplies or lack of specified maintenance shall be excluded.
• Normal maintenance items, including but not limited to, fuses,
conveyor belt, conveyor bearings, interior and exterior finishes,
lubrication, oven pass-through glass door, door hinges, etc.
• Adjustments and calibration of temperatures, speed and air flows.
• Failures caused by erratic voltages or gas supplies.
• Any travel costs beyond 100 miles roundtrip or 2 hours travel other
than overland, overtime, holiday charge, and any special arrangement.
• Any travel costs above actual time (One-way travel ONLY paid).
• Any charges additional to the SRT (Standard Repair Times) will be
authorized and paid at the discretion of Lincoln.
• Improper or unauthorized repair.
• This Limited Warranty will not apply to any parts subject to damage
beyond the control of Lincoln, or to equipment which has been
subject to alteration, misuse or improper installation, accidents,
damage in shipment, fire, floods, power changes, other hazards or acts
of God that are beyond the control of Lincoln.
• This Limited Warranty does not apply and shall not cover any
products or equipment manufactured or sold by Lincoln when
such products or commercial equipment is installed or used in a
residential or non-commercial application. Installations not within
the applicable building or fire codes render this Limited Warranty
and any responsibility or obligations associated therein null and
void. This includes any damage, costs or legal actions resulting from
the installation of any Lincoln manufactured commercial cooking or
warming equipment in a non-commercial application or installation,
where the equipment is being used for applications other than those
approved for by Lincoln.
• With respect to equipment, materials, parts and accessories
manufactured by others, Lincoln’s sole obligation shall be to use
reasonable efforts to obtain the full benefit of the manufacturers’
warranties. Lincoln shall have no liability, whether in contract, tort,
negligence, or otherwise, with respect to non-Lincoln manufactured
products.
LIMITATIONS OF LIABILITY
The preceding paragraphs set forth the exclusive remedy for all claims
based on failure of, or defect in, products or services sold hereunder,
whether the failure or defect arises before or during the warranty period,
and whether a claim, however instituted, is based on contract, indemnity,
warranty, tort (including negligence), strict liability, implied by statute,
common-law or otherwise. Lincoln, its servants and agents shall not be
liable for any claims for personal injuries or consequential damages or loss,
howsoever caused. Upon the expiration of the warranty period, all such
liability shall terminate. THE FOREGOING WARRANTIES ARE EXCLUSIVE AND
IN LIEU OF ALL OTHER WARRANTIES, WHETHER WRITTEN, ORAL, IMPLIED
OR STATUTORY. NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS
FOR PARTICULAR PURPOSE SHALL APPLY. LINCOLN DOES NOT WARRANT
ANY PRODUCTS OR SERVICES OF OTHERS.
REMEDIES
• The liability of Lincoln for breach of any warranty obligation
hereunder is limited to: (i) the repair or replacement of the equipment
on which the liability is based, or with respect to services, reperformance of the services; or (ii) at Lincoln’s option, the refund of
the amount paid for said equipment or services.
• Any breach by Lincoln with respect to any item or unit of equipment
or services shall be deemed a breach with respect to that item or unit
or service only.
WARRANTY CLAIM PROCEDURE
• Immediately advise the Dealer or Lincoln’s Factory Authorized Servicer
of the equipment serial number and the nature of the problem.
• Verify the problem is a factory responsibility. Improper installation or
misuse of equipment are not covered under this Limited Warranty.
• Cooperate with the Service Agency so that warranty service may be
completed during normal working hours.
GOVERNING LAW
Limited Warranty shall be governed by the laws of the state of Delaware,
USA, excluding their conflicts of law principles. The United Nations
Convention on Contracts for the International Sale of Goods is hereby
excluded in its entirety from application to this Limited Warranty.
INTERNATIONAL SALES POLICY
International sales orders submitted by US dealers are subject to the
following up charge:
•
2424 Asperion Whisper Oven – 20%
•
lmpinger II, lmpinger I, Low Profile, 3200 Series ovens - 20%.
Welbilt oers fully-integrated kitchen systems and our products are backed by
KitchenCare® aftermarket parts and service. Welbilt’s portfolio of award-winning brands
includes Cleveland™, Convotherm®, Crem®, Deleld®, tkitchen®, Frymaster®,
Garland®, Kolpak®, Lincoln®, Manitowoc®, Merco®, Merrychef® and Multiplex®.