F30
JennAir
Dryer Exhaust Thermistor Fault
Display shows F30; dryer function may not operate correctly.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Open or shorted dryer thermistor, loose thermistor wiring, thermistor out of calibration, control board sensor input failure
How to Fix / Troubleshooting
Safety first: Unplug the combo and allow the dryer to cool.
- Locate thermistor: The dryer thermistor is typically mounted on the exhaust duct inside the unit. Access via rear or front panel.
- Inspect wiring: Check the thermistor connector and wires for damage or looseness.
- Test thermistor: Measure resistance at room temperature and compare to JennAir specifications. Replace if open, shorted, or out of range.
- Re-test dryer: After replacement, run a drying cycle and verify normal operation without F30.
When to call a technician: If the thermistor and wiring are good, the control board may be faulty.
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Repair Difficulty
Medium
3/5
Required Part
Dryer Thermistor
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