Whirlpool Error Code F28

try unplugging and plugging back in. a reboot of sorts.

i am not a repair man, but I own one too. good luck.

For the F28 error code:
First, check the wiring harness connections to the MCU, the Motor, and the CCU. Make sure all the connections are tight and there are no ground wires off. Then check the connections of the CCU board within the housing.

If the wiring connections are fine then It would be a good idea to order both, as both components have been problematic for the error code F28.


Here is the CCU to order.

Here is the MCU to order.

For the F28 error code:
First, check the wiring harness connections to the MCU, the Motor, and the CCU. Make sure all the connections are tight and there are no ground wires off. Then check the connections of the CCU board within the housing.

If the wiring connections are fine then It would be a good idea to order both, as both components have been problematic for the error code F28.
Here is a link to the CCU.
Here is a link to the MCU.

F28 is a communication error which usually means there is a connection that has come loose. Removing the top and unpplugging and replugging the connectors in will fix 75% of these codes. If the bottom toe panel is not on it will also give you an F28

Unplug or turn the circuit breaker off for 30 seconds.

Reconnect the unit to the power source by turning the breaker back on or plugging the unit back into the wall outlet.

Press the Pause/Cancel/Stop button twice to clear the display.

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 if you have any further questions message me back and please remember to rank how this opinion has helped in your appliance situation when our chat has concluded Thanks again Rick

The error code F28 means one or both of these parts are bad.
Motor Control Unit (8540135)
Microcomputer Machine Control Unit (8540788)
It would be a good idea to order both, as both components have been problematic for error code F28

If you find either the MCU or the CCU(Microcomputer Machine Control Unit) fixed it.

You can download the online repair manual in the below link

https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/6545d78b3f479480852571650061b1ba/$FILE/8178558.pdf

On page# 4-20 it shows how to access your MCU.

The error code F28 means one or both of these parts are bad.
Motor Control Unit (8540135)
Microcomputer Machine Control Unit (8540788)
It would be a good idea to order both, as both components have been problematic for error code F28

If you find either the MCU or the CCU(Microcomputer Machine Control Unit) fixed it.

Here's the online repair manual for your
Whirlpool Duet

Give it time to download.
On page# 4-20 it shows how to access your MCU.
https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/6545d78b3f479480852571650061b1ba/$FILE/8178558.pdf

Error code F28 indicates that one of the below part is bad

• Motor Control Unit (8540135)
• Microcomputer Machine Control Unit (8540788)

If you find either the MCU or the CCU(Microcomputer Machine Control Unit) you can fix it,

Here's the online repair manual for Whirlpool Duet Sport, but its identical to your HE2.

Refer page# 4-20 it describes how to get to MCU.

https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/6545d78b3f479480852571650061b1ba/$FILE/8178558.pdf

You can call whirlpool for service but the tech sheet f28 has a communication problem from you computer to the motor..

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
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.

F28 error 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
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

If it is new call for service...