F24
JennAir
Inlet Thermistor (Drum Inlet) Open
Dryer displays F24 and may not heat correctly or may shut off prematurely.
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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-circuit inlet thermistor, Disconnected inlet thermistor harness, Broken thermistor mounting, Failed control board sensor circuit
How to Fix / Troubleshooting
Safety first: Disconnect power and allow the dryer to cool before working near the heater or drum inlet.
- Locate the inlet thermistor: On many JennAir dryers, the inlet thermistor is mounted near the heater housing or at the front of the drum air inlet.
- Check connections: Verify the thermistor connector is firmly attached and the wires are intact.
- Measure resistance: With the dryer unplugged, disconnect the thermistor and measure its resistance at room temperature. An infinite reading indicates an open sensor.
- Inspect for physical damage: Look for cracks, broken mounting tabs, or signs of overheating around the thermistor.
- Replace if open: Remove the mounting screw or clip, install the new inlet thermistor, reconnect the harness, reassemble any panels, restore power, and test a heated cycle.
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Repair Difficulty
Medium
3/5
Required Part
Inlet Thermistor
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