Error code reference

Whirlpool Washer Error Code F09

Motor Control Unit (MCU) has internal failure; repeating under or over voltage, or over current conditions. If failure occurs during high-speed spin the door unlocks after 3 minutes.

SourceWhirlpool Washer - Tech Sheet: WFW9200 Service Guidep. 2

Diagnostic procedure

The full F09 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Unplug washer or disconnect power. Check wire harness connections between the drive motor and the MCU, and between the MCU and the CCU. Check the motor and do a continuity test.

SourceWhirlpool Washer - Tech Sheet: WFW9200 Service Guidep. 2

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented

19 manuals in the MyPros+ library document this code for Whirlpool washer.

Models covered by the manuals that document this code

More models are covered than are listed here.

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