Wolf Range Error Code 5122

Error code 5122 means the RTD temperature sensor in the left oven is reading above 600°F while the oven is not running a self-clean cycle. The control board flags this as an abnormal over-temperature condition and shuts down the oven. The cause can be a genuinely overheating oven, a faulty sensor, or a damaged wiring connection between the sensor and the board.

Cycling power to the range may temporarily clear the fault code, but it will return if the underlying problem has not been fixed. A power reset is useful for confirming whether the fault is intermittent or persistent, but it is not a repair. Address the root cause, whether that is the RTD sensor, wiring, or gas valve, before returning the oven to regular use.

Repair costs depend on which component has failed. An RTD sensor replacement typically runs in the range of $50 to $150 for the part, while a gas valve or control board can cost significantly more. Adding professional labor, total repair costs can range from roughly $150 to $600 or more depending on the diagnosis. Getting a technician diagnosis first will help you understand the actual scope of the repair.

You should not continue using the left oven while this fault is active. If the oven is genuinely overheating, continued use could damage internal components or create a fire hazard. Even if the cause turns out to be a faulty sensor rather than actual overheating, the oven cannot regulate temperature reliably until the issue is resolved.

Start by placing a calibrated thermometer in the left oven cavity to determine whether the temperature is actually exceeding 600°F. If the oven is genuinely overheating, inspect the gas valve and igniter. If the oven temperature is normal, test the RTD sensor's resistance and inspect the wiring harness for damage or loose connections. Replace any component that falls outside its expected specification.