Jenn-Air Range Error Code F3

The F3 code on a Jenn-Air range indicates a short circuit detected in the oven temperature sensor circuit. The control board has received a resistance signal from the sensor that is abnormally low, outside the acceptable operating range. This typically points to a failed sensor probe or a wiring issue between the sensor and the control board. The oven will not operate normally until the fault is resolved.

It is not recommended to operate the oven while the F3 fault is active. Because the oven temperature sensor is shorted, the control board cannot accurately monitor or regulate oven temperature, which could result in overheating or unpredictable behavior. The stovetop burners may still function depending on the model, but the oven should remain off until the fault is diagnosed and repaired.

If the oven temperature sensor is the cause, the repair cost is generally in the range of $100 to $250 when serviced by a technician, including the part and labor. Doing the sensor replacement yourself can bring the cost down to roughly $20 to $80 for the part alone. If the control board needs replacement, costs can rise significantly, typically ranging from $200 to $500 or more depending on the model and labor rates in your area.

A knowledgeable DIYer can diagnose this fault by using a multimeter to test the oven temperature sensor resistance at room temperature, looking for a reading near 1,000 ohms. If the sensor reads near zero or shows very low resistance, replacing the sensor is a straightforward repair involving disconnecting the harness and removing the probe from the oven cavity. Wiring inspection and connector cleaning are also tasks within reach of a careful DIYer. Control board replacement is more complex and may be better suited for a technician.

Resetting the range by cutting power at the circuit breaker for several minutes may temporarily clear the F3 code, but the fault will return if the underlying problem with the sensor or wiring is not repaired. A reset does not fix the short circuit condition. It can be useful for confirming that the fault reappears consistently, which helps confirm a real component failure rather than a one-time control glitch.