Maytag Range Error Code F1-2

F1-2 means the control board detected the lower oven temperature exceeding 650°F while the oven door was in the unlocked position. This is outside normal operating range for any cooking function and signals either a faulty lower oven temperature sensor, a wiring problem, or in some cases an actual thermal runaway condition caused by a stuck relay on the control board.

Start by disconnecting power, then remove the lower oven temperature sensor and measure its resistance with a multimeter. At room temperature (around 70°F), a good sensor reads approximately 1080-1090 ohms. If the reading is significantly lower or shows a short, replace the sensor. If the sensor tests within spec, inspect the wiring harness from the sensor to the control board for damage. If both check out, the control board relay may be the cause and the board will need replacement.

Yes. A shorted lower oven temperature sensor sends resistance readings the control board interprets as dangerously high temperatures, triggering F1-2 even when the oven cavity itself is at a normal temperature. Measuring the sensor resistance with a multimeter is the fastest way to determine whether the code reflects a true overheat condition or a failed sensor sending bad data.

No, do not use the range while F1-2 is active. The code indicates either the oven genuinely exceeded 650°F or the temperature sensor is malfunctioning, both conditions make the oven unsafe to operate. Disconnect power to the range at the breaker until you have diagnosed and resolved the cause.

A replacement lower oven temperature sensor is typically the least expensive fix, with parts running $20-$60 depending on the model, and the repair is DIY-accessible with basic tools. If the control board is at fault, board replacement parts range from $100-$300, and professional labor adds $100-$200 on top of that. Diagnosing the sensor first keeps costs low since it is the most common cause.