Whirlpool dryer Error Code F23

Exhaust Thermistor Failure

What does F23 mean?

Exhaust thermistor not providing valid readings.

Common causes

Open thermistor circuit
Shorted thermistor
Corroded connections

Diagnostic & testing steps

1. Test thermistor resistance - should be ~10K ohms at 77F
2. Check for corroded connections
3. Inspect wiring for breaks
4. Replace thermistor

Tools required

Multimeter

OEM parts & part numbers

Exhaust Thermistor

Part numbers: W10834831

Safety warning

⚠️ Disconnect power before testing

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