GE Range Error Code F4 E7

F4 E7 on a GE range indicates an over-temperature condition in the second oven cavity, specifically a temperature runaway error. The control board has detected that cavity 2 is heating beyond safe limits without proper regulation. This is a protective fault that prevents continued operation until the root cause is addressed. Common culprits include a stuck bake relay, a failed temperature sensor, or a defective control board.

Resetting the range by cutting power at the breaker may temporarily clear the error code, but it will not fix the underlying problem. If the relay is stuck, the sensor is faulty, or the control board is defective, the error will return once the oven is used again. A proper repair requires diagnosing and replacing the failed component.

Repair costs vary depending on which component has failed. A replacement oven temperature sensor typically falls in the range of $20 to $60 for the part alone. A control board replacement is significantly more expensive, often ranging from $150 to $350 or more for the part. Adding professional labor charges, total repair costs can range from $100 to $500 or higher depending on the specific model and the failed component.

No, you should not use the oven while this error is active. A temperature runaway condition means the oven may not be able to stop heating itself, which poses a risk of damage to the appliance, surrounding cabinetry, and potentially your home. Discontinue use and have the range inspected before operating it again.

Begin by entering diagnostics mode and pressing the BAKE key to cycle the bake relay and verify it is responding correctly. If the relay does not cycle properly, the control board may need replacement. If the relay is functioning, test the cavity 2 temperature sensor for correct resistance values. Replace any component that tests outside of specification. A qualified appliance technician can perform these tests safely.