Maytag Dryer Error Code F:22

F:22 means the exhaust thermistor circuit is open, indicating the control board is receiving no signal from the temperature sensor in the exhaust path. This could be caused by a failed thermistor, a disconnected wiring connector, or a break in the wiring harness. The dryer stops operating when this code appears because it cannot safely monitor exhaust temperatures. Diagnostic testing of the thermistor and its wiring circuit is required to resolve the issue.

No, you should not operate the dryer while F:22 is active. The exhaust thermistor is a safety-critical component that helps prevent overheating. Without a functioning thermistor signal, the dryer cannot regulate heat output safely, which could create a fire risk. The dryer should remain off until the fault is diagnosed and repaired.

If only the exhaust thermistor needs replacement, parts typically cost in the range of $10 to $40, making it one of the more affordable dryer repairs. If wiring harness repair or control board replacement is needed, total repair costs including labor can range from $100 to $300 or more. Getting a diagnosis before purchasing parts is advisable to avoid unnecessary expenses.

A knowledgeable DIYer can attempt this repair by following the thermistor diagnostic procedure (TEST #4a) using a multimeter to check for continuity at the thermistor and along the wiring harness. If the thermistor has failed open, it is a replaceable component. However, if the issue involves the control board or complex wiring damage, a qualified technician is recommended.

A power reset may temporarily clear the code, but it will return as soon as the control board checks the thermistor circuit again and detects the open condition. The underlying hardware fault, whether a failed thermistor, broken wire, or loose connector, must be corrected for the code to stay cleared. Resetting without repairing is not a reliable solution.