Caloric Range Error Code F3

F3 on a Caloric range indicates an open circuit in the oven temperature sensor circuit. The control board is not receiving a valid resistance signal from the oven temperature sensor. This typically points to a failed sensor, a broken wire in the sensor harness, or a loose connector. The oven will not heat properly while this fault is active.

It is not recommended to use the oven while F3 is active. Because the control board cannot accurately read oven temperature, it cannot properly regulate the heating elements. This could result in overheating or uneven cooking temperatures. The stovetop surface burners may still function, but the oven should be considered out of service until the fault is resolved.

Resetting the range by cutting power at the circuit breaker for a few minutes may temporarily clear the F3 code, but it will return if the underlying problem in the sensor circuit has not been fixed. A reset does not repair a failed sensor or damaged wiring. The code should be treated as an active fault requiring diagnosis rather than a one-time glitch that a reset will resolve.

A knowledgeable DIYer can often resolve this fault by testing and replacing the oven temperature sensor, which is a relatively straightforward repair. Use a multimeter to check resistance across the sensor terminals: if you get an infinite reading at room temperature, the sensor needs replacement. Wiring inspection and connector reseating are also tasks most DIYers can handle safely. If those steps do not resolve the fault, the control board may need professional evaluation.

If the oven temperature sensor is the cause, replacement sensor parts typically cost in the range of $20 to $60 depending on the specific model. If you hire a technician, expect total repair costs including labor to fall in the range of $100 to $250. Control board replacement, if required, is a more expensive repair and can range from $200 to $400 or more with labor included.