Whirlpool Duet Washer Fault Codes

 

 

Duet Washer

Failure
Code
Condition
Check/Repair
F/H

No water detected entering machine or Pressure switch trip not detected.

If after 30 seconds the control does not detect water entering machine and then valves will be turned off and the error code will be displayed.

Or

If the control has turned the water valves on and after 8 minutes the flow meter has detected 10.5 gallons of water passing through it, but has not detected the pressure switch trip, the valves will be turned off and the error code will flash.

 

Press PAUSE/CANCEL twice to clear the display.
  • If there is no water in the unit:
    1. Make sure that both valves at the water source(s) are turned on all the way.
    2. Check for plugged or kinked inlet hoses or plugged screens in the inlet valves
    3. Verify inlet valve operation
  • If there is water in the unit:
    1. Verify Drain pump operation
    2. Pressure Switch Hose is in good condition and properly connected to Tub and Pressure switch
  • Verify there is not a siphon problem
  • Verify wire harness connections to:Inlet Valves, Pressure Switch, Drain Pump, Flow Meter, and Central Control Unit (CCU)
  • Check all hoses for possible leaks
  • Verify pressure switch operation
  • Verify flow meter operation
  • Verify CCU operati
F/02

Long Drain

If the drain time exceeds 8 minutes, the water valves are turned off and "F/02" is flashed.

NOTE: After 4 minutes the "Sud" error will be displayed, then 4 minutes later the F02 error code will be displayed.

 

Press PAUSE/CANCEL twice to clear the display.
  • Check the drain hose and make sure it is not plugged or kinked.
  • Check the electrical connections at the pump and make sure the pump is running.
  • Check the drain pump filter for foreign objects.
  • If the above does not correct the problem, replace the pump.
F/05

Water Temperature Sensor Error

If during the water heating step in wash cycle, the water temperature sensor (NTC) value is out of range, or the heating element circuit has failed, the "F/05" error code will be displayed.

  • Check the Water Temperature Sensor, Heating Element and Element Relay
  • Check connections to the Sensor, Heating Element and Relay
F/06

Drive Motor Tachometer Error

The control is unable to properly detect motor speed and the machine will shut down. If a failure occurs during high-speed spin, the door will be unlocked after 3 minutes.

  • Check wire harness connections between the Drive Motor/Tachometer and the Motor Control Unit (MCU), and between the MCU and the Central Control Unit (CCU)
  • Check the Drive Motor
  • Check the MCU
  • Check the Wire Harness
F/07

Motor Control Unit Error

The Central Control Unit has detected a short in the motor control unit. If a failure occurs during high-speed spin, the door will be unlocked after 3 minutes.

  • Check wire harness connections between the Drive Motor and the Motor Control Unit (MCU), and between the MCU and the Central Control Unit (CCU)
  • Check the MCU
  • Check the Drive Motor
  • Check the Wire Harness
F/09

Overflow Condition

If the Overflow contact on the pressure switch is Closed for more than 60 seconds and Overflow condition will occur. In an Overflow condition, the Door will remain locked, and the Drain Pump will run constantly, even if PAUSE/CANCEL is pressed twice and the Display is cleared. Unplug the unit to service.

  • Check the drain hose and make sure it is not plugged or inked.
  • Check Wire Harness connectors to the Drain Pump, Pressure Switch, and Central Control Unit (CCU)
  • Check/Clean Drain Pump Filter of foreign objects
  • Check for Drain Pump Failure
  • Check the Inlet Valve for proper shut off
  • Check the Pressure switch for proper operation
F/10

Motor Control Unit (MCU) Heat Sink Thermal Trip

If the thermal protector on the MCU heat sink gets too hot, it will open the thermal protector on the heat sink which will stop motor functions and an "F/10" will be displayed.

  • Check for Proper Installation, verify the unit is not located near a source of heat and has proper ventilation.
  • Check Wire Harness connectors to the MCU, and Central Control Unit (CCU)
  • Check the Drive system for any worn or failed components
  • Check MCU
  • Check Motor
F/11

Serial Communication Error

Communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.

  • Check Wire Harness connectors to the MCU, the motor, and Central Control Unit (CCU)
  • Check the Drive system for any worn or failed components
  • Check MCU
  • Check CCU
  • Check Motor
  • Check Wire Harness
F/13

Dispenser Circuit Error

If the dispenser motor is not able to be driven to it's proper position.

  • Check mechanical linkage from dispenser motor to the top of the dispenser.
  • Check Wire Harness connections to the dispenser motor and Central Control Unit (CCU)
  • Check Dispenser Motor
F/14

EEPROM Error

The Central Control Unit (CCU) receives it's data from an EEPROM on board the CCU. If there is an error reading this data, it will cause this error.

  • A power glitch may cause this error. Try unplugging the Unit for two minutes to see if that fixes the error.
  • Check CCU
F/15

Motor Control Unit (MCU) Error

If the MCU detects multiple resets or errors during a wash cycle, it will go into this error mode.

  • Check Wire Harness connectors to the MCU, the motor, and Central Control Unit (CCU)
  • Check Drive belt
  • Check MCU
  • Check Motor
  • Check Wire Harness
Sud

SUDS LOCK (Overdose of Detergent detected during the Wash Cycle)

The motor control unit senses a suds lock condition by analyzing the current draw on the drive motor. If "Sud" is displayed a potential suds lock is detected. This may signify a bad pump, an extra heavy load, excessive detergent, or excessive suds.

  • If too much detergent was used, run the unit through a Rinse/Spin cycle, then a Normal cycle, without adding any detergent. This should clear the unit of the excess detergent.
  • Check the drain hose and make sure it is not plugged or kinked.
  • Check Wire Harness connectors to the Drain Pump, Pressure Switch, and Central Control Unit (CCU)
  • Check/Clean Drain Pump Filter of foreign objects
  • Check Drain Pump
  • Check Pressure Switch
  • Check CCU
F/dL

Door Lock Error

A Door Lock Error occurs if the door cannot be unlocked. It will try to lock it 6 times before displaying the error.

  • Door Lock Mechanism broken or removed from the Door
  • Check Door Lock/Switch Assembly
  • Check the wire harness connections to the Door Lock/Switch Assembly and Central Control Unit (CCU)
  • Door Lock/Switch Assembly Failure
F/dU

Door Unlock Error

A Door Unlock Error occurs if the door cannot be unlocked. It will try to unlock the door 6 times before displaying the error.

  • Door Lock Mechanism broken.
  • Check Door Lock/Switch Assembly for foreign objects
  • Check Wire Harness connections to the Door Lock/Switch Assembly and Central Control Unit (CCU)
  • Door Lock/Switch Assembly Failure

Duet Sport Washer

Failure
Code
Condition
Check/Repair
F01

EEPROM ERROR
A communication error between the Central Control Unit (CCU)
and the EEPROM onboard the CCU occurred.

PUMP DRIVE ERROR
The pump driver fails to activate.

MAIN RELAYS ERROR
One of the main relays is not working properly.

A power glitch may cause this error.
Unplug washer or disconnect power for two minutes.
Verify CCU operation by running a Diagnostic Test or any cycle.

Replace CCU board.

The relay might be soldered or always open.
Replace CCU board.

F03

HEATER SC TO GROUND
The Heater has a internal short circuit.

 

Short circuit of Heater to Ground.
Measure insulating resistance of heater between contact and housing (norm. 2 MΩ).
Replace heater.
Perform test program.

F11

MOTOR CONTROL UNIT ERROR
The Motor Control Unit has internal failure; repeating under or over voltage, or over current conditions. If failure occurs during
high-speed spin the door unlocks after 3 minutes.

 

1. Unplug washer or disconnect power.
2. Check wire harness connections between the drive motor and the Motor Control Unit (MCU), and b etween the MCU and the Central Control Unit (CCU). Check the motor and do a continuity test.
3. Plug in washer or reconnect power.
4. Check the MCU by looking for operations of the drive motor.
5. Check the drive motor for powered rotations.
6. Replace MCU board.
F20

NO WATER DETECTED ENTERING MACHINE OR PRESSURE SWITCH TRIP NOT DETECTED.
The pressure switch is not tripped after 6 minutes.

If there is no water in the unit:
Make sure that both valves at the water source(s) are turned on all the way.
Check for plugged or kinked inlet hoses or plugged screens in the inlet valves.
Verify inlet valve operation.
If there is water in the unit:
Verify drain pump operation.
Verify that the pressure switch hose is in good condition and properly connected to tub and pressure switch.
1. Verify there is not a siphon problem.
2. Press PAUSE/CANCEL twice to clear the display. The machine will drain for 3 minutes before unlocking the door.
3. Unplug washer or disconnect power.
4. Verify wire harness connections to inlet valves, pressure switch, drain pump and Central Control Unit (CCU).
5. Check all hoses for possible leaks.
6. Plug in washer or reconnect power
7. Verify pressure switch operation.
8. Verify CCU operation by running a Diagnostic Test or any cycle.
F21

LONG DRAIN
If the drain time exceeds 8 minutes the water valves turn off.
NOTES:
After 4 minutes the “Sd” error will be displayed, then 4 minutes later the “F/21” error code will be displayed.
Press PAUSE/CANCEL two times to clear the display.

1. Check the drain hose and make sure it is not plugged or kinked.
2. Unplug washer or disconnect power.
3. Check the electrical connections at the pump and make sure the pump is running.
4. Check the drain pump filter for foreign objects.
5. Plug in washer or reconnect power.
6. If the above does not correct the problem, go to step 7.
7. Unplug washer or disconnect power.
8. Replace the pump.
F22

DOOR LOCK ERROR
After 6 failed attempts to lock the door.

Possible Causes/Procedure
Door lock mechanism is broken or removed from door.
Door switch/lock unit failure.
1. Unplug washer or disconnect power.
2. Check door switch/lock unit.
3. Check the wire harness connections to the door switch/lock unit and Central Control Unit (CCU).
F23

HEATER FAILURE
If the temperature increase during the first 40 minutes is less than 86°F (30°C).

1. Unplug washer or disconnect power.
2. Check connection to water heater.
3. Check resistance of heating element, if present on this model. (abnormal = infinity)
4. Check the water temperature sensor and connection to it.
Refer to the Water Temperature Sensor section.
F24

WATER TEMPERATURE SENSOR ERROR
If the water temperature sensor (NTC) value is out of range (23°F to 217°F[-5°C to 103°C]) during the water-heating step
of the WASH cycle.
NOTE: To find correct Ohm reading refer to the Water Temperature Sensor section.

1. Unplug washer or disconnect power.
2. Check the water temperature sensor and connection to it.
3. Check resistance of heating element, if present on this model. (abnormal = infinity)
4. Refer to the Water Temperature Sensor section.
F25

DRIVE MOTOR TACHOMETER ERROR
If the control is unable to properly detect motor speed, the machine shuts down. If a failure occurs during high-speed spin, the door unlocks after 3 minutes.

1. Verify the shipping system including shipping bolts, spacers and cables are removed.
2. Unplug washer or disconnect power.
3. Check wire harness connections between the drive motor and the Motor Control Unit (MCU), and between the MCU and the Central Control Unit (CCU).
4. Plug in washer or reconnect power.
5. Check the MCU by looking for operations of the drive motor.
6. Check the drive motor for powered rotations.
F26

DOOR SWITCH ERROR
If the door has not been opened for 3 consecutive cycles or the door switch is open while the door is locked for more than
5 seconds.

Door not opened during 3 consecutive cycles.
1. Open and close the door.
2. Verify CCU operation by running a Diagnostic Test or any cycle.
Door switch open while door is locked.
1. Push the door and check if it is completely closed.
2. Verify CCU operation by running a Diagnostic Test or any cycle.
F27

OVERFLOW CONDITION
If the overflow contact on the pressure switch is closed for more than 60 seconds, an Overflow Condition occurs. In an
overflow condition, the door remains locked and the drain pump runs constantly, even if PAUSE/CANCEL is pressed twice and the display is cleared. Turn off hot and cold water faucets and unplug the unit before servicing.

1. Check the drain hose and make sure it is not plugged or kinked.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the drain pump, pressure switch, water inlet value, and Central Control Unit (CCU).
4. Check/clean drain pump filter of foreign objects.
5. Check for drain pump failure.
6. Check the inlet valve for proper shut off.
7. Check the pressure switch for proper operation.
F28

SERIAL COMMUNICATION ERROR
The communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.

1. Unplug washer or disconnect power.
2. Check wire harness connections to the MCU, the motor, and Central Control Unit (CCU).
Check connections of the CCU board within the housing.
Make sure all grounding switches are engaged.
3. Check the drive system for any worn or failed components.
4. Plug in washer or reconnect power.
5. Verify CCU operation by running a Diagnostic Test or any cycle.
6. Check the MCU by looking for operations of the drive motor.
7. Check the drive motor for powered rotations.
8. Check that the serial harness at the MCU is not mounted upside down. The wires should be to the left when facing the MCU connectors.
F29

DOOR UNLOCK ERROR
If the door unlock has failed 6 times.

Door lock mechanism is broken.
Door switch/lock unit failure.
1. Check door switch/lock unit for foreign objects.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the door switch/lock unit and Central Control Unit (CCU).
NOTE: The door switch/lock unit can be manually unlocked.
See Manually Unlocking The Door Lock System.
F30

DISPENSER SYSTEM ERROR
When the dispenser motor cannot be driven to its proper position.

1. Unplug washer or disconnect power.
2. Check mechanical linkage from dispenser motor to the top of the dispenser.
3. Check wire harness connections to the dispenser motor and Central Control Unit (CCU).
4. Check dispenser motor for powered rotations.
F31

MCU FAILURE
If the heat sink gets too hot, the Motor Control Unit (MCU) will stop the motor, the MCU will communicate this failure to the Central Control Unit (CCU), then the CCU will reset the MCU.
If the condition continues four times, the F31 code will show.

1. Check for proper installation, verify the unit is not located near a source of heat and has proper ventilation.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the MCU, the motor, and Central Control Unit (CCU).
4. Check the drive system for any worn or failed components.
5. Plug in washer or reconnect power.
6. Check the MCU by looking for operations of the drive motor.
7. Check the drive motor for powered rotations.
F32

PRESSURE SWITCH FAILURE
If there is no electrical supply to the Pressure Switch from the
CCU or if the Pressure Switch contacts are worn out, then a
Pressure Switch Failure is displayed

1. Check Pressure Switch harness for continuity.
2. Check Pressure Switch for correct working with a DVM/VOM.
3. To manually check the function of the Pressure Switch, remove hose from switch and apply air to switch. Audible clicks will be heard from the switch.
F33 PUMP DRIVE SYSTEM ERROR
When the connection between pump and the Central Control Unit (CCU) is lost.
1. Unplug washer or disconnect power.
2. Check wire harness connections to the pump and Central Control Unit (CCU).
3. Plug in washer or reconnect power.
4. Verify CCU operation by running a Diagnostic Test or any cycle. Refer to the Continuity tests.
F42

MOTOR CONTROL UNIT FAILURE - REPETITIVE UNDERVOLTAGE
The Motor Control Unit continuously checks for voltage. If during one wash cycle 4 undervoltages occur then a Motor Control Unit failure is displayed.

1. Household power supply is too low.
2. Check the wire harness connections to the Motor Control
Unit, Central Control Unit, and Interference Filter.
3. Replace the Motor Control Unit.
F70

CENTRAL CONTROL UNIT HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.

1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving
F71

USER INTERFACE HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the User Interface to the Central Control Unit.

1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving.
F99

NOT SUPPORTED
User selected on the UI the unsuppor ted Cycle on the CCU.
Mismatch of User Interface and CCU or corrupted EEPROM.

1. Perform Service Cycle to pair the UI and CCU SW.
2. Replace User Interface. If failure still present:
3. Replace also the CCU.
NOTE: During first power up of new CCU and UI combination, a bootphase (uploading parameters) will be performed.
rL LOAD INSIDE DRUM DURING CLEANING
WASHER CYCLE
If at the start of the CLEANING WASHER cycle a load is detected inside the drum.
NOTE: Detects by weight.
Remove clothes from drum and start the cycle again.
Sd SUDS LOCK (OVERDOSE OF DETERGENT
DETECTED DURING THE WASH CYCLE)
If suds are detected continuously by the pressure switch during the drain or spin phases, the washer will fill 4 liters of water and during 5 minutes the unit will rest without tumbling, the water will be drained
and it will try to spin or drain again.
If too much detergent was used:
– Run the unit through a RINSE/SPIN cycle.
– Run a NORMAL cycle without adding any detergent.
This should clear the unit of the excess detergent.
1. Check the drain hose and make sure it is not plugged or kinked.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the drain pump, pressure switch, and Central Control Unit (CCU).
4. Check/clean drain pump filter of foreign objects.
5. Plug in washer or reconnect power.
6. Check drain pump.
7. Check the pressure switch.
8. Verify CCU operation by running a Diagnostic Test or any cycle.
Sud SUDS LOCK (OVERDOSE OF DETERGENT
DETECTED DURING THE WASH CYCLE)
If suds are detected continuously by the pressure switch during the drain or spin phases, the washer will fill 4 liters of water and during 5 minutes the unit will rest without tumbling, the water will be drained
and it will try to spin or drain again.
If too much detergent was used:
Run the unit through a RINSE/SPIN cycle.
Run a NORMAL cycle without adding any detergent.
This should clear the unit of the excess detergent.
1. Check the drain hose and make sure it is not plugged or kinked.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the drain pump, pressure switch, and Central Control Unit (CCU).
4. Check/clean drain pump filter of foreign objects.
5. Plug in washer or reconnect power.
6. Check drain pump.
7. Check the pressure switch.
8. Verify CCU operation by running a Diagnostic Test or any cycle.
 

Some models do not have the display to show the failure codes. They use the status lights on the touchpad/LED.

Failure
Code
LED Status Duet Sport
LED Status Duet Sport HT
F01
Add a Garment

Add a Garment

F11
Add a Garment, Wash, Spin Add a Garment, Soak/Prewash, Rinse
F20
Rinse, Cycle Complete Wash, Spin
F21
Add a Garment, Rinse, Cycle Complete Add a Garment, Wash, Spin
F22 Wash, Rinse, Cycle Complete Soak/Prewash, Wash, Spin
F23
Add a Garment, Wash, Rinse, Cycle Complete Add a Garment, Soak/Prewash, Wash, Spin
F24
Spin, Cycle Complete Rinse, Spin
F25
Add a Garment, Spin, Cycle Complete Add a Garment, Rinse, Spin,
F26
Wash, Spin, Cycle Complete Soak/Prewash, Rinse, Spin
F27
Add a Garment, Wash, Spin, Cycle Complete Add a Garment, Soak/Prewash, Rinse, Spin
F28 Rinse, Spin, Cycle Complete Wash, Rinse, Spin
F29 Add a Garment, Rinse, Spin, Cycle Complete Add a Garment, Wash, Rinse, Spin
F30 Wash, Rinse, Spin, Cycle Complete Soak/Prewash, Wash, Rinse, Spin
F31 Add a Garment, Wash, Rinse, Spin,
Cycle Complete
Add a Garment, Soak/Prewash, Wash, Rinse,
Spin
F33 Add a Garment Add a Garment, Cycle Complete
rL Wash Soak/Prewash, Cycle Complete

Duet Steamer Washer

Failure
Code
Condition
Check/Repair
F01

EEPROM ERROR
A communication error between the Central Control Unit (CCU)
and the EEPROM onboard the CCU occurred.

PUMP DRIVE ERROR
The pump driver fails to activate.

MAIN RELAYS ERROR
One of the main relays is not working properly.

A power glitch may cause this error.
Unplug washer or disconnect power for two minutes.
Verify CCU operation by running a Diagnostic Test or any cycle.

Replace CCU board.

The relay might be soldered or always open.
Replace CCU board.

F03

HEATER SC TO GROUND
The Heater has a internal short circuit.

 

Short circuit of Heater to Ground.
Measure insulating resistance of heater between contact and housing (norm. 2 MΩ).
Replace heater.
Perform test program.

F06
STEAMER DEFECT
The Steamer temperature has not reached the correct value. The failure will be reset after running the Diagnostic Test Program.

 

1. Check Steamer for continuity (Abnormal =infi nity).
2. Check the harness between the Steamer and the Steamer Electronic board.
3. Check that NTC resistance of the Steamer is in range between 170 kΩ and 300 Ω, refer to Temperature Sensor table on page 10.
If resistance is 0 Ω or infi nite value, replace NTC.
4. Check calcifi cation of steamer element. In normal use (a little blockage is normal) the steamer cleans itself. If you can’t look through it, exchange Steamer.
5. Exchange Steamer if it is totally blocked.

F11

MOTOR CONTROL UNIT ERROR
The Motor Control Unit has internal failure; repeating under or over voltage, or over current conditions. If failure occurs during
high-speed spin the door unlocks after 3 minutes.

 

1. Unplug washer or disconnect power.
2. Check wire harness connections between the drive motor and the Motor Control Unit (MCU), and b etween the MCU and the Central Control Unit (CCU). Check the motor and do a continuity test.
3. Plug in washer or reconnect power.
4. Check the MCU by looking for operations of the drive motor.
5. Check the drive motor for powered rotations.
6. Replace MCU board.
F20

NO WATER DETECTED ENTERING MACHINE OR PRESSURE SWITCH TRIP NOT DETECTED.
If after 30 seconds not minimum 0.1l of water entered or maximum fi ll
time of 13 minutes is exceeded, the valves will be turned off and the
error code will be displayed. Press PAUSE/CANCEL twice to clear the
display.

If there is no water in the unit: Make sure that both valves at the water source(s) are turned on
all the way.
Check for plugged or kinked inlet hoses or plugged screens in the inlet valves.
Verify inlet valve operation.
If there is water in the unit: Verify that the pressure switch hose is in good condition and
properly connected to tub and pressure switch.
1. Unplug washer or disconnect power.
2. Verify there is not a siphon problem.
3. Verify wire harness connections to inlet valves, pressure switch, flow meter, and Central Control Unit (CCU).
4. Check all hoses for possible leaks.
5. Plug in washer or reconnect power.
6. Verify pressure switch operation.
7. Verify flow meter operation by blowing air through the part and measuring the resistance.
8. Verify CCU operation by running a Diagnostic test or any cycle.
F21

LONG DRAIN
If the drain time exceeds 8 minutes the water valves turn off.
NOTES:
After 4 minutes the “Sd” error will be displayed, then 4 minutes later the “F/21” error code will be displayed.
Press PAUSE/CANCEL two times to clear the display.

1. Check the drain hose and make sure it is not plugged or kinked.
2. Unplug washer or disconnect power.
3. Check the electrical connections at the pump and make sure the pump is running.
4. Check the drain pump filter for foreign objects.
5. Plug in washer or reconnect power.
6. If the above does not correct the problem, go to step 7.
7. Unplug washer or disconnect power.
8. Replace the pump.
F22

DOOR LOCK ERROR
After 6 failed attempts to lock the door.

Possible Causes/Procedure
Door lock mechanism is broken or removed from door.
Door switch/lock unit failure.
1. Unplug washer or disconnect power.
2. Check door switch/lock unit.
3. Check the wire harness connections to the door switch/lock unit and Central Control Unit (CCU).
F23

HEATER FAILURE
If the temperature increase during the first 40 minutes is less than 86°F (30°C).

1. Unplug washer or disconnect power.
2. Check connection to water heater.
3. Check resistance of heating element, if present on this model. (abnormal = infinity)
4. Check the water temperature sensor and connection to it.
Refer to the Water Temperature Sensor section.
F24

WATER TEMPERATURE SENSOR ERROR
If the water temperature sensor (NTC) value is out of range (23°F to 217°F[-5°C to 103°C]) during the water-heating step
of the WASH cycle.
NOTE: To find correct Ohm reading refer to the Water Temperature Sensor section.

1. Unplug washer or disconnect power.
2. Check the water temperature sensor and connection to it.
3. Check resistance of heating element, if present on this model. (abnormal = infinity)
4. Refer to the Water Temperature Sensor section.
F25

DRIVE MOTOR TACHOMETER ERROR
If the control is unable to properly detect motor speed, the machine shuts down. If a failure occurs during high-speed spin, the door unlocks after 3 minutes.

1. Verify the shipping system including shipping bolts, spacers and cables are removed.
2. Unplug washer or disconnect power.
3. Check drive motor tachometer resistance.
It should be approx. 115 Ω.
4. Check wire harness connections between the drive motor and the Motor Control Unit (MCU), and between the MCU and the Central Control Unit (CCU).
5. Plug in washer or reconnect power.
6. Check the MCU by looking for operations of the drive motor.
7. Check the drive motor for powered rotations.

F26

DOOR SWITCH ERROR
If the door has not been opened for 3 consecutive cycles or the door switch is open while the door is locked for more than
5 seconds.

Door not opened during 3 consecutive cycles.
1. Open and close the door.
2. Verify CCU operation by running a Diagnostic Test or any cycle.
Door switch open while door is locked.
1. Push the door and check if it is completely closed.
2. Verify CCU operation by running a Diagnostic Test or any cycle.
3. Check door switch contacts.
4. The resistance of both door coils (between pin 1 and 3) should be approx. 320 Ω.

F27

OVERFLOW CONDITION
If the overflow contact on the pressure switch is closed for more than 60 seconds, an Overflow Condition occurs. In an
overflow condition, the door remains locked and the drain pump runs constantly, even if PAUSE/CANCEL is pressed twice and the display is cleared. Turn off hot and cold water faucets and unplug the unit before servicing.

1. Check the drain hose and make sure it is not plugged or kinked.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the drain pump, pressure switch, water inlet value, and Central Control Unit (CCU).
4. Check/clean drain pump filter of foreign objects.
5. Check for drain pump failure.
6. Check the inlet valve for proper shut off.
7. Check the pressure switch for proper operation.
F28

SERIAL COMMUNICATION ERROR
The communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.

1. Unplug washer or disconnect power.
2. Check wire harness connections to the MCU, the motor, and Central Control Unit (CCU).
Check connections of the CCU board within the housing.
Make sure all grounding switches are engaged.
3. Check the drive system for any worn or failed components.
4. Plug in washer or reconnect power.
5. Verify CCU operation by running a Diagnostic Test or any cycle.
6. Check the MCU by looking for operations of the drive motor.
7. Check the drive motor for powered rotations.
8. Check that the serial harness at the MCU is not mounted upside down. The wires should be to the left when facing the MCU connectors.
9. Check doorswitch system. (See checklist of F26 and F29). The doorswitch may cause an interference for the powersupply of the
MCU.

F29

DOOR UNLOCK ERROR
If the door unlock has failed 6 times.

Door lock mechanism is broken.
Door switch/lock unit failure.
1. Check door switch/lock unit for foreign objects.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the door switch/lock unit and Central Control Unit (CCU).
4. Check door switch contacts.
5. The resistance of both door coils (between pin 1 and 3) should be approx. 320 Ω.

NOTE: The door switch/lock unit can be manually unlocked.
See Manually Unlocking The Door Lock System.

F30

DISPENSER SYSTEM ERROR
When the dispenser motor cannot be driven to its proper position.

1. Unplug washer or disconnect power.
2. Check mechanical linkage from dispenser motor to the top of the dispenser.
3. Check wire harness connections to the dispenser motor and Central Control Unit (CCU).
4. Check dispenser motor for powered rotations.
F31

MCU FAILURE
If the heat sink gets too hot, the Motor Control Unit (MCU) will stop the motor, the MCU will communicate this failure to the Central Control Unit (CCU), then the CCU will reset the MCU.
If the condition continues four times, the F31 code will show.

1. Check for proper installation, verify the unit is not located near a source of heat and has proper ventilation.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the MCU, the motor, and Central Control Unit (CCU).
4. Check the drive system for any worn or failed components.
5. Plug in washer or reconnect power.
6. Check the MCU by looking for operations of the drive motor.
7. Check the drive motor for powered rotations.
F32

PRESSURE SWITCH FAILURE
If there is no electrical supply to the Pressure Switch from the CCU or if the Pressure Switch contacts are worn out, then a Pressure Switch Failure is displayed

1. Check Pressure Switch harness for continuity.
2. Check Pressure Switch for correct working with a DVM/VOM.
3. To manually check the function of the Pressure Switch, remove hose from switch and apply air to switch. Audible clicks will be heard from the switch.
F34

UNLOAD INDICATION
This failure is only for information and can be displayed in the error history during the Diagnostic Test. During the Cleaning Cycle was load detected inside the drum and Cleaning Cycle was interrupted by
indicating “rL” to User.

 
F35

ANALOG PRESSURE SENSOR FAILURE
If this failure is displayed, there is any malfunction of the steamer component detected by the Steamer Electronic Board.

1. Check if pressure hose is fi xed correctly.
2. Check if the airtrap is not blocked.
3. Check if the hose is not blocked.
F42

MOTOR CONTROL UNIT FAILURE - REPETITIVE UNDERVOLTAGE
The Motor Control Unit continuously checks for voltage. If during one wash cycle 4 undervoltages occur then a Motor Control Unit failure is displayed.

1. Household power supply is too low.
2. Check the wire harness connections to the Motor Control Unit, Central Control Unit, and Interference Filter.
3. Replace the Motor Control Unit.
F61

STEAMER COMMUNICATION FAILURE
An incorrect or corrupted communication between Central Control Unit (CCU) and steamer electronic board is recognized. The failure will be reset after running the Diagnostic Test Program.

1. Check harness on steamer electronic board.
2. Check for loose connectors.
3. Exchange steamer electronic board.
F62

STEAMER ELECTRONIC BOARD RELAYS ERROR
One of the steamer relays (K1, K2, K3, K4) on the Steamer Electronic board have failed, there is an open or short circuit. The failure will be reset after running the Diagnostic Test Program is run.

1. Check that NTC resistance of the Steamer is in range between 170 kΩ and 300 Ω, refer to Temperature Sensor table.If resistance is 0 Ω or infi nite value, replace NTC.
2. Confirm there is no short circuit in Steamer harness. If NTC is OK and failure repeats exchange steamer electronic board.
F63

TOTAL STEAMER FAILURE
If this Failure is displayed, one or several vital values are out of range.
The Steamer will no longer function for any wash cycle and should be replaced. The failure will be reset after running the Diagnostic Test Program.

 
F64

STEAMER INLET VALVE FAILURE
The Steamer valve or fl ush valve is blocked open or not working properly.
The failure will be reset after running the Diagnostic Test Program.

1. Check valve for continuity (abnormal = infi nity).
2. Check the connections between the Steamer 3. Electronic Board and the valve for steam fill.
4. Confirm water supply to steamer.
5. Exchange the complete valve block if the steamer valve has not a resistance of approx. 812 Ω between both contacts.
6. Exchange steamer electronic board if valve is OK.
F65

STEAMER TIME OUT REACHED
Error happens if there is no communication between Central Control Unit (CCU) and steamer electronic board. The failure will reset after running the Diagnostic Test Program.

1. Check connections between the Steamer Electronic board and CCU.
2. Check mains supply is in range (90V-132V).
F70

CENTRAL CONTROL UNIT HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.

1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving
F71

USER INTERFACE HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the User Interface to the Central Control Unit.

1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving.
F99

NOT SUPPORTED
User selected on the UI the unsuppor ted Cycle on the CCU.
Mismatch of User Interface and CCU or corrupted EEPROM.

1. Perform Service Cycle to pair the UI and CCU SW.
2. Replace User Interface. If failure still present:
3. Replace also the CCU.
NOTE: During first power up of new CCU and UI combination, a bootphase (uploading parameters) will be performed.
rL LOAD INSIDE DRUM DURING CLEANING
WASHER CYCLE
If at the start of the CLEANING WASHER cycle a load is detected inside the drum.
NOTE: Detects by weight.
Remove clothes from drum and start the cycle again.
Sud SUDS LOCK (OVERDOSE OF DETERGENT
DETECTED DURING THE WASH CYCLE)
If suds are detected continuously by the pressure switch during the drain or spin phases, the washer will fill 4 liters of water and during 5 minutes the unit will rest without tumbling, the water will be drained
and it will try to spin or drain again.
If too much detergent was used:
– Run the unit through a RINSE/SPIN cycle.
– Run a NORMAL cycle without adding any detergent.
This should clear the unit of the excess detergent.
1. Check the drain hose and make sure it is not plugged or kinked.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the drain pump, pressure switch, and Central Control Unit (CCU).
4. Check/clean drain pump filter of foreign objects.
5. Plug in washer or reconnect power.
6. Check drain pump.
7. Check the pressure switch.
8. Verify CCU operation by running a Diagnostic Test or any cycle.