Jenn-Air Oven Error Code 1d12

Code 1d12 means the lower oven detected a runaway temperature condition, reaching 650°F or above while the oven door was in the unlocked position. This is a protective fault that causes the control board to disable all cooking functions in the lower oven cavity. It typically points to a failed temperature sensor, a stuck heating element, or a relay fault on the control board.

No, you should not attempt to use the oven while this fault is active. The control board disables all cooking functions for the lower oven cavity specifically because a runaway temperature condition was detected, which presents a potential safety hazard. The oven should be inspected and the underlying cause resolved before resuming use.

Repair costs vary depending on the failed component. A replacement lower oven temperature sensor is typically the least expensive fix, with parts generally ranging from $20 to $60 and labor adding to that total. A new control board or heating element will cost more, with full repair estimates commonly falling in the range of $150 to $400 or higher depending on parts pricing and local labor rates.

A knowledgeable DIYer can start by checking the lower oven temperature sensor resistance, which should read above 2237 ohms at the point the fault triggers. If the sensor reads open, shorted, or inconsistent with actual oven temperature, replacing the sensor is a straightforward repair. However, if the fault involves a stuck relay on the control board or a shorted heating element, those repairs are more involved and may warrant a qualified technician.

Disconnecting power to the oven may temporarily clear the fault code, but if the underlying problem, such as a failed sensor, faulty element, or stuck relay, is still present, the code will return once the oven reaches the fault threshold again. A reset without repair does not address the root cause and should not be relied on as a fix.