Jenn-Air Range Error Code F1-1

F1-1 means the oven control detected a temperature above 650°F (343°C) during bake mode, which is a thermal runaway or over-temperature fault. The oven shuts down as a safety measure when this threshold is crossed. The fault is most commonly caused by a defective oven temperature sensor, a wiring harness problem, or a failed control board.

No, you should not continue using the oven in bake mode while this fault is active. The F1-1 code indicates the oven exceeded 650°F, which can damage internal components and poses a potential safety risk. Discontinue use and diagnose the sensor and control system before operating the oven again.

Repair costs depend on the failed component. An oven temperature sensor typically costs between $20 and $60 for the part, while a replacement control board can range from $100 to $300 or more depending on the model. Adding professional labor will increase the total cost, generally ranging from $150 to $400 or higher for a complete repair.

Cycling power to the range may temporarily clear the F1-1 code, but if the underlying cause is not corrected, the fault will return once the oven reaches that temperature threshold again. Resetting without diagnosis is not a fix. The sensor and harness should be tested before assuming the issue is resolved.

Start by disconnecting power to the range and using a multimeter to check the resistance of the oven temperature sensor, comparing it against the values listed in the oven sensor chart. Also inspect the sensor harness for damage, shorts, or loose connectors. If the sensor and harness test correctly, the electronic oven control board will need to be replaced.