GE Oven Error Code F22

F22 means the control board has detected that the resistance on the lower oven sensor circuit has exceeded the allowed threshold. The board monitors the W to W/R wire pair connected to the lower oven temperature sensor, and when resistance reads too high, it cannot reliably track oven temperature and triggers this fault. The most likely cause is a failed lower oven sensor or a break in the wiring harness leading to it.

Start by measuring the resistance of the lower oven sensor circuit at the ERC connector CN300 pins 1 to 8 (W to W/R wires), or at the machine control lower oven board connector J300 pins 1 to 2. A healthy GE oven sensor reads approximately 1080 to 1100 ohms at room temperature. If resistance is significantly higher or reads open (OL), replace the lower oven sensor. If the sensor tests good, inspect the wiring harness and connectors for damage or corrosion before considering the control board.

Yes. Disconnect power to the oven, then pull the sensor connector at either the ERC (T012) at CN300 pins 1 to 8 or the lower oven board at J300 pins 1 to 2 and measure resistance across the W and W/R wires using a multimeter set to ohms. At room temperature, a good sensor reads roughly 1080 to 1100 ohms. A reading well above this range or an open circuit (OL) confirms the sensor has failed and needs replacement.

No, you should not continue using the oven with F22 active. Because the control board cannot read a valid temperature from the lower oven sensor, it has no way to regulate heat accurately. Operating the oven in this condition risks uncontrolled heating or inaccurate cooking temperatures. Stop using the oven and diagnose the fault before running any bake or broil cycles.

If the lower oven sensor is the cause, replacement sensors typically range from $20 to $60 for the part, and the repair is accessible for a confident DIYer since it usually involves removing two screws and a wire connector inside the oven cavity. If a wiring harness or control board is at fault, parts cost rises to $50 to $300 or more depending on the board, and professional labor adds $100 to $200 in most markets. Diagnosing the sensor resistance first keeps unnecessary parts costs down.