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Error code reference
Whirlpool Refrigerator Error Code LED pattern for Defrost Sensor failure
Defrost sensor (evaporator thermistor) failure detected.
SourceWhirlpool Refrigerator - Tech Sheet: W11646490ATable 2
Diagnostic procedure
The full LED pattern for Defrost Sensor failure 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
Enter service diagnostics mode; thermistors are automatically tested after Heater Off (Step 4).
SourceWhirlpool Refrigerator - Tech Sheet: W11646490ATable 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
1 manual in the MyPros+ library documents this code for Whirlpool refrigerator.
Models covered by the manuals that document this code
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