GE Range Error Code F4

F4 on a GE range means the control board has detected a shorted oven temperature sensor circuit, specifically a resistance reading below 950 ohms in the RTD sensor circuit. A properly functioning sensor reads approximately 1100 ohms at room temperature. The most common causes are contaminated connector terminals, a damaged wiring harness, or a failed sensor probe. The control board disables oven operation when this code is active.

Start by disconnecting power to the range, then unplug the sensor connector at the control board. Using a multimeter set to ohms, measure resistance across the two sensor leads at the connector. You should read approximately 1100 ohms at room temperature. If resistance reads below 950 ohms, check each sensor lead from the connector block to ground to locate a short. Also inspect the connector terminals closely for deformation, corrosion, or grease buildup. If the harness and connector are clean and undamaged but resistance is still low, replace the RTD sensor probe.

Yes, a failed RTD oven temperature sensor is one of the likely causes of the F4 code, though it is not always the first component to check. Before replacing the sensor, disconnect the harness at the control board and measure sensor resistance directly. If the reading is below 950 ohms with the sensor isolated from the board, the sensor or harness is at fault. If resistance reads correctly at the sensor end but F4 persists, the problem is in the connector terminals or the control board itself.

The oven itself should not be used while F4 is active. The control board cannot accurately read oven temperature with a shorted sensor circuit, which means it cannot regulate heat safely. Surface burners on a gas range may still function depending on your model, but do not attempt to use the oven until the fault is diagnosed and repaired. Continuing to operate the oven in this state risks uncontrolled temperature conditions.

If the fix is cleaning corroded connector terminals, the cost is minimal. Just time and possibly a can of electrical contact cleaner. A replacement oven temperature sensor (RTD probe) typically costs between $20 and $60 for most GE range models and is a common DIY repair. A replacement control board, needed only if the fault is a cold solder joint that cannot be reflowed, runs $150 to $350 or more depending on the model. Professional labor typically adds $80 to $150 per hour, so diagnosing and confirming the root cause before ordering parts will keep costs down.