Error code reference

Whirlpool Dryer Error Code D20

Sail Switch Open Fault occurs when the sail switch does not close within 10 seconds at cycle start, or opens during a cycle and fails to close within 30 seconds.

SourceWhirlpool MDG-35 - Service Manualp. 30

Whirlpool codes Whirlpool dryer codes

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

Check main door and lint access door, verify proper airflow, and select cycle to restart.

SourceWhirlpool MDG-35 - Service Manualp. 30

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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 Whirlpool dryer.

Models covered by the manuals that document this code

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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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