Moffat Dryer Error Code F1

F1 on a Moffat dryer means the control board has detected improper operation of the temperature sensor, specifically an open circuit or short circuit in the sensor wiring or the sensor element itself. Because the dryer cannot confirm safe operating temperatures, it terminates the program immediately. The fault must be resolved before a drying cycle can be completed.

No. The F1 error means the dryer has no reliable way to monitor drum temperature, so running it could pose an overheating or fire risk. The control board does shut the cycle down immediately when the fault is detected, but the underlying wiring or sensor issue should be corrected before operating the dryer again.

If only a connector needs reseating or cleaning, there may be no parts cost at all, with any expense limited to a service call if you hire a technician. A replacement temperature sensor typically runs in the range of $15 to $50 for the part. If the control board is the root cause, board replacement costs generally range from $80 to $200 or more depending on the specific model and parts availability.

In many cases, yes. Start by unplugging the dryer and inspecting the temperature sensor connector for loose, corroded, or damaged terminals, then reseat the connection firmly. If the connector is intact, testing the sensor with a multimeter and replacing it if it reads open or shorted is a straightforward repair for someone comfortable with basic appliance disassembly. If the wiring harness is damaged, splicing or replacing that section may also be within DIY range.

A power reset by unplugging the dryer for a few minutes may temporarily clear the fault code, but if the sensor or wiring fault is still present, the F1 error will return as soon as the control board attempts to read the sensor again. A reset alone is not a repair, and the underlying cause must be diagnosed and corrected for the error to stay cleared.