Kenmore Dryer Error Code F-22

F-22 on a Kenmore dryer means the exhaust thermistor circuit is open, indicating the control board is receiving no signal from the temperature sensor in the dryer's exhaust path. This could be caused by a failed thermistor, a broken wire, or a faulty connector. The dryer shuts down when this fault occurs because it cannot safely monitor exhaust temperatures without a functioning sensor.

Running the dryer while the F-22 code is active is not recommended. The exhaust thermistor is part of the dryer's temperature monitoring system, and without it functioning correctly, the dryer cannot detect a potential overheating condition in the exhaust path. Most units will stop operating when this fault is triggered, but attempting to bypass or ignore it creates a safety risk.

If only the exhaust thermistor needs replacement, parts typically range from $10 to $40 depending on the specific model, making it one of the more affordable dryer repairs. If the issue is a wiring harness or connector repair, costs depend on labor and whether any harness sections need replacement. A control board replacement, if required, is significantly more expensive and can range from $100 to $300 or more for parts alone.

Many technicians and experienced DIYers can resolve this fault by inspecting the wiring harness and connectors for damage or looseness, which requires no parts. If the thermistor itself has failed, replacing it is a straightforward repair involving disconnecting a wiring connector and swapping the sensor. Using a multimeter to test continuity and resistance is the key skill needed for this repair.

A power reset may temporarily clear the fault code, but it will return as soon as the control board checks the thermistor circuit and detects the open condition again. A reset does not repair the underlying problem. The thermistor and its wiring need to be tested and repaired or replaced to permanently resolve the code.