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Error code reference
Whirlpool Refrigerator Error Code D9
Defrost sensor failure detected during Athena control service mode step 6.
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Diagnostic procedure
The full D9 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
Check defrost thermistor connections and resistance.
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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