Wolf Oven Error Code E25/F3

E25/F3 indicates a short circuit detected in the 300C temperature sensor circuit. The control board is reading abnormally low resistance from that sensor, which prevents the oven from operating safely. The fault points to either the sensor itself, the wiring harness, or in rarer cases the control board. Resistance testing at the sensor is the correct starting point for diagnosis.

No, you should not attempt to operate the oven while this error is active. The control system cannot accurately monitor oven temperature with a shorted sensor, which removes a critical safety check. Stop using the oven until the sensor circuit has been inspected and repaired.

Repair costs vary depending on the cause. A temperature sensor replacement typically involves parts costs in the range of $50 to $150, plus labor if a technician is involved. If the control board is the cause, parts alone can range from $200 to $500 or more. Wiring harness repairs fall somewhere in between depending on the extent of the damage.

A knowledgeable DIYer can perform the initial resistance test on the sensor with a multimeter after unplugging the oven. If the sensor tests as shorted, replacing it is a straightforward repair involving disconnecting the sensor leads and installing a compatible replacement. However, if the fault is traced to the wiring harness or control board, those repairs are more complex and may warrant a qualified technician.

A power reset by unplugging the oven or cycling the circuit breaker may temporarily clear the fault display, but the error will return as soon as the control board re-checks the sensor circuit. The underlying short circuit must be repaired to resolve the code permanently. Do not rely on resetting as a fix.