How to Fix a Motor Control Board for a Washer That Will Not Agitate
If you notice that the drive motor in your washer isn’t spinning, or it’s not spinning at the proper speed, it may mean there’s an issue with the motor control board. This circuit board receives signals from the main control board and uses these signals to start up the drive motor. You may wish to have this part inspected or repaired by a qualified technician if you are not comfortable working with electronic parts. The information provided below can help you to determine if the motor control board may be causing the agitation issues in your washer.
What is a Motor Control Board?
The motor control board is a separate circuit board that receives signals from the main control board, which activates the drive motor. It is used to control the drive motor speed and direction for the spin and tumble actions during the cycle. It is also known as a motor control unit (MCU).
Where is the Motor Control Board Located?
The location of the motor control board varies between model types so it is recommended that you refer to your user manual to find this part. The following 3D renderings will give you an idea of where the motor control board commonly is.
General Location of the Motor Control Board in a Front Load Washer
In a front load washer, the motor control board may be found nearer to the front panel of the washer, on either side of the tub.
Alternatively, the motor control board may be in the top panel of the washer. Again, it may be found on either the left or right side of the tub.
General Location of the Motor Control Board in a Top Load Washer
In a top load washer, the motor control board is typically in the control panel of the washer.
How to Inspect the Motor Control Board
The motor control board may be damaged if the drive motor is not spinning at the correct speed. Because the MCU communicates with the main control board, you may wish to have this inspection done by a qualified technician. Some signs you can look for include burning and arcing.
If You Have a Front-Load Washer
How to Access and Remove the Motor Control Board
- Disconnect the power supply to your washer.
- To access the motor control board, you will need to remove the back panel from your washer.
- Remove any screws securing the motor control board to the washer and disconnect any wire harnesses before removing the unit.
How to Install a New Motor Control Board
- Reconnect the wire harnesses and the mounting screws to secure the new unit to the washer.
- Replace the back panel.
Next: Troubleshooting the Rotor
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