Maytag Range Error Code F3-2

F3-2 means the control board detected an abnormal resistance reading from the lower oven temperature sensor. The sensor read either below 100 ohms (shorted) or above 5,000 ohms (open circuit). This prevents the oven from accurately measuring cavity temperature, so the control board disables the lower oven heating function.

The lower oven bake and broil functions will not operate reliably with F3-2 active because the control board cannot monitor oven temperature. Using the oven in this state risks uncontrolled heating or no heat at all. Surface burners on a gas or electric range are typically unaffected and can still be used safely while you arrange for repair.

Unplug the range, then remove the two screws holding the lower sensor probe to the back wall of the oven interior. Pull the sensor forward slightly to access the connector and disconnect it. Set a multimeter to measure ohms and touch the probes to the two sensor terminals. At room temperature, a working sensor reads approximately 1,080 ohms. A reading under 100 ohms confirms a short, and a reading over 5,000 ohms or an open-line reading confirms the sensor has failed and needs replacement.

Start by unplugging the range and locating the lower oven sensor on the back wall of the lower oven cavity. Disconnect the sensor and use a multimeter to measure its resistance across the two terminals. A reading near 1,080 ohms at room temperature is normal. If the reading is below 100 ohms or above 5,000 ohms, replace the sensor. If the sensor reads correctly, inspect the wiring harness and connectors running from the sensor to the control board for damage or loose pins.

A replacement lower oven temperature sensor typically costs between $20 and $60 for the part, and most homeowners can replace it with a screwdriver in under 30 minutes. If the wiring harness is damaged, a harness assembly costs roughly $30 to $80. If a service technician is needed, expect an additional $100 to $200 in labor depending on your area. A control board replacement, which is the least likely fix, can run $150 to $350 for the part alone.