Dcs Oven Error Code F3

F3 on a DCS oven indicates an open circuit in the oven temperature sensor. The control board is not receiving any resistance signal from the sensor probe inside the oven cavity. This prevents the oven from monitoring or regulating its internal temperature. The fault points to a failed sensor, broken wiring, or a loose connector in the sensor circuit.

You should not attempt to use the oven while F3 is active. Because the control board cannot read oven temperature, it has no way to regulate heating elements safely. This creates a risk of overheating, and the oven will typically lock out normal operation until the fault is resolved.

Resetting the oven by cutting power at the breaker for a few minutes may temporarily clear the F3 code, but the fault will return as soon as the control board attempts to read the sensor again. A reset does not fix the underlying open circuit in the sensor or wiring. A lasting repair requires diagnosing and replacing the faulty component.

A knowledgeable DIYer can address this repair by testing the sensor resistance with a multimeter and replacing the sensor if it reads open or out of range. Replacing the oven temperature sensor is a relatively straightforward repair involving removing the sensor from inside the oven cavity and disconnecting the wiring harness. If the wiring harness or control board is at fault, the repair becomes more involved and may benefit from a qualified technician.

If the oven temperature sensor is the cause, parts typically range from around $20 to $80 depending on the specific sensor, with labor adding $75 to $150 if a technician is hired. A wiring harness repair or connector fix may fall on the lower end of the cost range. Control board replacement is the most expensive scenario, with parts alone often ranging from $150 to $350 or more.