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Bryan, Home Appliance Technician
Category: Appliance
Satisfied Customers: 12156
Experience:  15 yrs. experience as a certified appliance technician.
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I am getting error codes f32 and f28 when I try to use my washer.

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I am getting error codes f32 and f28 when I try to use my washer. Cycle will not start. thank you. [email protected]
can you recheck the model #? its not comming up, thanks Bryan
Customer: replied 7 years ago.
Sorry, glasses not strong enough; model# XXXXX WFW9400SW01; I believe that is a zero instead of a "D".

I found it, F-32 is this


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.

Possible Causes/Procedure

1. Check Pressure Switch harness for continuity.

2. Check Pressure Switch for correct working with a


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.


and F-28 is

The 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).

- 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


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.

Customer: replied 7 years ago.
Ok, so pressure switch is located in the water line in the machine? Should i disconnect the cold or hot or both to check function? Would air in the line cause a failure? I believe the f28 is a result of unplugging the machine to get the f32 to clear.
the water level switch is 3 20 on this diagram, its mounted to the side wall and you will need to run the tests above, pull the hose off it and blow into switch, it should click, it looks like this, Part 903701also blow down the hose and make sure its clear into the tub, then try machine again, let me know, thanks Bryan
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