Maytag Range Error Code F3-1

F3-1 means the control board measured a resistance reading from the upper oven temperature sensor that is either below 100 ohms (shorted) or above 5,000 ohms (open circuit). In either case, the control board cannot get a valid temperature reading from the upper oven sensor, so it stops operating the upper oven and displays the code. The problem is in the sensor itself, the wiring harness connecting it to the board, or the connector terminals.

The upper oven will not operate while F3-1 is active because the control board has disabled it as a safety measure. Without a valid temperature signal, the oven cannot regulate heat, so the lockout is intentional. If your range has a separate lower oven or a cooktop, those functions may still work depending on your model. Do not attempt to bypass the error to force the upper oven to run.

Disconnect power to the range before any testing. Access the upper sensor connector, which is usually reachable after removing the back panel or through the oven cavity depending on your model. Set a multimeter to measure resistance (ohms) and probe across the two sensor terminals. At room temperature, a good sensor reads close to 1,080 ohms. A reading under 100 ohms confirms a short in the sensor, and a reading over 5,000 ohms confirms an open circuit. If the sensor passes this test, reconnect it and check resistance at the control board end of the harness to isolate any wiring issue.

Start by disconnecting power to the range, then locate the upper oven temperature sensor on the back wall inside the upper oven cavity. Unplug the sensor connector and use a multimeter to measure resistance across the sensor terminals. A working sensor should read approximately 1,080 ohms at room temperature (around 70 degrees F). If the reading is below 100 ohms or above 5,000 ohms, replace the sensor. If the sensor tests correctly, inspect the harness and connectors for damage or poor contact. Replacing the upper oven sensor is a repair most DIYers can complete with basic tools.

An upper oven temperature sensor is typically the least expensive repair for this code. Replacement sensors for Maytag ranges generally cost between $20 and $60 for the part. If you do the repair yourself, that is often the only cost. A service technician call will add a diagnostic fee plus labor, typically bringing the total to $100-$200 depending on your region. If the control board is the cause, board replacement costs significantly more, often $150-$350 for the part alone.