Whirlpool Dryer Error Code F:22

F:22 indicates that the exhaust thermistor circuit is open, meaning the control board is receiving no signal from the temperature sensor in the exhaust path. The dryer cannot monitor exhaust temperatures and shuts down as a safety measure. The fault points to a failed thermistor, broken wiring, or a loose connector in that circuit.

No, you should not continue running the dryer with an F:22 error active. The exhaust thermistor is part of the dryer's thermal protection system, and without a functioning temperature signal, the control board cannot detect an overheating condition. Continued use could create a fire hazard.

Repair costs depend on what has failed. A replacement exhaust thermistor is generally an inexpensive part, typically in the range of $15 to $40. If the wiring harness needs repair or replacement, parts and labor costs will be higher, potentially ranging from $80 to $200 or more depending on the extent of the damage and local labor rates.

A knowledgeable DIYer can start by inspecting the wiring harness and connectors leading to the exhaust thermistor for obvious damage or looseness, since a reseated connector sometimes clears the fault. If the wiring looks intact, testing the thermistor with a multimeter is the next step. Replacing the thermistor is a straightforward repair if testing confirms it has failed, though tracing a wiring break can require more skill.

A power reset may temporarily clear the displayed code, but if the underlying open circuit in the thermistor circuit is still present, the F:22 error will return as soon as the dryer attempts to operate. The fault must be diagnosed and the defective component repaired or replaced before the code will stay cleared.