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WFW9400SW00 how to check mcu

Power button only beeps when pressed.

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Error code F11


F11 is an indication of a communications problem.
Communications cannot be sent correctly between the machine control board and the motor control board.
Here are some possible causes:
  • Loose wire connection at either the machine control board or motor control board.
  • Machine control board failure
  • Motor control board failure
  • Door lock
  • Motor
Error codes can be caused by a Power Surge or other electrical anomaly, attempt to return the washer to operation by following the Hard Reset procedure below.

In some cases the control can be non-functioning or may not accept activation from the control panel. To clear and restart the control follow the these steps:
  1. Unplug or turn the circuit breaker off for 10-20 minutes.
  2. Reconnect the unit to the power source by turning the breaker back on or plugging the unit back into the wall outlet.
  3. Press the Pause/Cancel/Stop button twice to clear the display.
  4. Start a short cycle to check the operation of the machine by selecting a cycle and pressing and holding the start button until the machine starts.

Aug 10, 2010 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

What does it mean when a f 11 code appears and it will not do anything else


F11 is a serial communication error. Communication between the main board and the motor control board is not being sent correctly. This could be a bad main board, motor control board or motor itself. The testing can get pretty involved. Try putting the machine in a self test mode and see if the error clears. Press Cancell, then by pressing the drain spin button once on the left side then move to the spin speed button the the right. Press this button until no-spin lights. Press the prewash button 4 times. C00 should appear in the display. Let it run it's tests, there will be 8 of them and end up on C08.this is for the 4t
for the 3t:
Communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.

Potential Causes

• Check Wire Harness connections 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

Replace failed component.
hope this helps 90 percent of the time it is a failed ccu

Jul 08, 2010 | Kenmore Elite 45986 Front Load Washer

1 Answer

Our Kemore Elite washer keeps stoping and displaying an error message of f11. We have to unplug it, or sometimes we can push a bunch of random buttons and that can unstick it! Its very frustrating......any...


1. Unplug washer or disconnect from power.
2. Check wire harness between drive motor and MCU. Between MCU and 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 the MCU board.

Jan 30, 2010 | Kenmore Elite 45986 Front Load Washer

1 Answer

Kenmore HE 3t gets down to 2 minutes left in the cycle and stops. Gives an error code of 7 and beeps.


F07 - Motor Control Unit (MCU) Error - Disconnect power and unplug unit. Check wire harness connections between drive motor and Motor Control Unit (MCU), and between MCU and the Central Control Unit (CCU). Reconnect power and plug unit in.
Check the MCU by looking for operations of the drive motor, and check drive motor for powered rotations. Replace failed component.

Note: If this failure occurs during high-speed spin, the door will be unlocked after three minutes.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question

Dec 23, 2009 | Kenmore Elite 45986 Front Load Washer

2 Answers

My duet front loading washer has a code 06. When I turn off and unplugged for 1 min. then tried to start it again, it started filling with water then stopped and started beeping the code again. I did this...


This is a 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.

Make sure the wash load is not too heavy and do not move the washer when it is powered on.

If the error persists then the normal process is to check the following:
  1. 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).
  2. Check the Drive Motor.
  3. Check the MCU
  4. Check the Wire Harness

Nov 10, 2009 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

F07 error message


F07 - Motor Control Unit (MCU) Error - Disconnect power and unplug unit. Check wire harness connections between drive motor and Motor Control Unit (MCU), and between MCU and the Central Control Unit (CCU). Reconnect power and plug unit in.
Check the MCU by looking for operations of the drive motor, and check drive motor for powered rotations. Replace failed component.

Note: If this failure occurs during high-speed spin, the door will be unlocked after three minutes.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question

Oct 29, 2009 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

F11 error


F11 is a serial communication error. Communication between the main board and the motor control board is not being sent correctly. This could be a bad main board, motor control board or motor itself. The testing can get pretty involved. Try putting the machine in a self test mode and see if the error clears. Press Cancell, then by pressing the drain spin button once on the left side then move to the spin speed button the the right. Press this button until no-spin lights. Press the prewash button 4 times. C00 should appear in the display. Let it run it's tests, there will be 8 of them and end up on C08. If this doesn't work, it's best you wait for the service tech.


Good luck

Oct 05, 2009 | Kenmore Elite 45986 Front Load Washer

1 Answer

F 11 code is flashing


hello 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
  • shaun

Oct 03, 2009 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

F 07


F 07
The main control has detected a short in the Motor Control
Unit. If a failure occurs during high-speed spin, the door
will be unlocked after three minutes.

Possible Causes / Procedure
1. Unplug washer or disconnect power.
2. Check wire harness connections between the drive
motor and the Motor Control Unit (MCU), and between
the MCU and the Central Control Unit (CCU).
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.

Mar 11, 2009 | Whirlpool Duet GHW9150P Front Load Washer

2 Answers

F-11


FIRST COMMENT
F11 Serial communication error Communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.

Possible Causes / Procedure

1. Unplug washer or disconnect power.
2. Check wire harness connections to the MCU, the motor, and Central Control Unit (CCU).
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.

Replace failed component.

Jun 15, 2008 | KitchenAid KHWS01PMT Front Load Washer

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