Error code reference

Speed Queen Dryer Error Code OPEN THERMISTOR ERROR

Output board sensed temperature less than 0°F (-18°C) after heater has been active for at least 3 minutes, indicating an open thermistor.

SourceSpeed Queen Quantum Platinum Dryer - Service Manual (DRY639R)p. 53

Speed Queen codes Speed Queen dryer codes

Diagnostic procedure

The full OPEN THERMISTOR ERROR 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

Press any cycle selection pad after temperature reading rises above 0°F (-18°C) to clear error. Check thermistor and wiring.

SourceSpeed Queen Quantum Platinum Dryer - Service Manual (DRY639R)p. 53

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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

1 manual in the MyPros+ library documents this code for Speed Queen dryer.

Models covered by the manuals that document this code

DRY639R

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The full OPEN THERMISTOR ERROR procedure

Where this code is documented

Models covered by the manuals that document this code

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