Fisher & Paykel Oven Error Code F3

The F3 code means the oven's control system detected a cavity temperature above 600°F (315°C) during a normal cooking operation, which is beyond the safe operating threshold. The oven shuts down the heating circuit as a protective response. This can be caused by a genuinely overheated oven or by a faulty temperature sensor sending an incorrect reading to the control board. Diagnosing the temperature sensor is the recommended starting point.

Resetting the oven by cutting power at the breaker may temporarily clear the F3 code, but the fault will almost certainly return if the underlying cause has not been addressed. If the error reappears immediately or early in the next cooking cycle, a component fault such as a defective sensor or a failed control board relay is likely present. A reset is useful for confirming the fault is persistent, but it is not a repair.

Repair costs vary depending on the failed component. A replacement temperature sensor is typically the least expensive fix, with parts generally ranging from $30 to $80 and labor adding $75 to $150 depending on your market. A control board replacement is more costly, with parts alone often ranging from $150 to $350 or more. Heating element replacement falls somewhere in between. Getting a diagnostic assessment first helps avoid replacing parts unnecessarily.

You should not continue using the oven while F3 is active. The fault indicates either a true overheat condition or a sensor failure, both of which require diagnosis before the appliance is safe to operate. Running the oven with a stuck relay or runaway element presents a genuine fire risk. Stop using the oven until the root cause has been identified and corrected.

Begin by inspecting and testing the oven temperature sensor, as this is the most common cause of F3. If the sensor's resistance values are out of specification or the wiring shows damage, replacing the sensor is the likely fix. If the sensor tests correctly, the control board relay and the heating elements should be evaluated next. A qualified technician with access to the diagnostic procedures in Section 5.23 can systematically isolate the fault.