Error code reference

Maytag Washer Error Code d20

Serial communication error (Accu Trac equivalent of F28).

SourceMaytag MAH22 - Service Manual: Commercial Washer Controlsp. 7

Diagnostic procedure

The full d20 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

First diagnostic step

Unplug washer, check wire harness connections to MCU, motor, and CCU.

SourceMaytag MAH22 - Service Manual: Commercial Washer Controlsp. 7

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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

5 manuals in the MyPros+ library document this code for Maytag washer.

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full d20 procedure

Where this code is documented

Models covered by the manuals that document this code

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