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drt1200

WFW9400SW01

4 posts in this topic

I get 3 beeps when I try to start this pig. The only function is the lock function.

I replaced the CCU and the door lock but no joy.

Does anyone have any ideas what problem could cause this symptom?

Edited by drt1200

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Need appliance parts? Call 877-803-7957 now!

Tech Sheet - 8183018.pdf

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Most likely the MCU - Motor Control Unit, these seem to be a common fail item on these WFW series front loaders.

Remove the little connector with the 3 blue wires from the MCU and try it again. If you don't get the 3 beeps and it starts timing down like it's going to work then the MCU is the problem, (motor won't operate and you may get some error code with the 3 blue wire connector removed but this test proves a bad MCU).

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