Wolf Range Error Code 3122

Code 3122 means the left oven's RTD temperature sensor circuit is reporting a resistance below 1091 Ω at ambient temperature, which is outside the acceptable range of ±5.3 Ω. The control board uses this resistance value to calculate oven temperature, and a reading this low signals a broken sensor or a wiring problem. The oven will not operate normally until the fault is resolved.

You should not operate the left oven while this fault is active. The control board cannot accurately monitor oven temperature with a faulty RTD circuit, which means temperature regulation is unreliable. Using the oven in this state risks overheating or uncontrolled temperature conditions. The right oven or cooktop burners, if unaffected, may still be usable, but confirm no related faults are present first.

Repair costs depend on the root cause. An RTD sensor replacement typically runs between $50 and $150 for the part, with labor adding $100 to $250 depending on your area and the technician's rates. If the fault is limited to a damaged connector or wiring issue requiring no new parts, the repair cost is primarily labor. Control board replacement, if needed in rare cases, is significantly more expensive, generally ranging from $300 to $600 or more for parts alone.

A knowledgeable DIYer can begin by visually inspecting the RTD wiring harness for obvious damage and checking that all connectors are fully seated. Measuring RTD resistance with an ohmmeter at a known ambient temperature near 75°F will confirm whether the sensor itself has failed. If the RTD reads below specification, it must be replaced. If you are not comfortable working around oven wiring and control boards, a qualified appliance technician is the safer option.

Cycling power to the range may temporarily clear the display, but the code will return as soon as the control board re-reads the RTD circuit and detects the out-of-range resistance. Because code 3122 reflects an actual hardware condition (a resistance value below 1086 Ω), it cannot be permanently cleared until the underlying wiring fault or failed RTD is corrected.