GE Oven Error Code F8-E4

The F8-E4 code means the oven has detected an over-temperature condition while the door is closed and the latch is in an unlocked state. This is a safety fault tied to the door latch system, which includes the latch motor, latch switch, and door open/closed switch. The control board triggers this code when temperature and latch position data do not match expected safe operating parameters. Diagnosis should start with disconnecting power and inspecting the latch assembly.

Disconnecting power to the oven for a few minutes may temporarily clear the F8-E4 code, but if the underlying cause has not been repaired, the code will return. A reset is useful as a first step to confirm whether the fault is intermittent or persistent. If the code reappears after restoring power, the latch motor, latch switch, or door switch will need to be tested and likely replaced.

Repair costs depend on which component has failed and whether you hire a professional technician. A latch motor or switch part typically ranges from around $20 to $80, while professional labor can add $100 to $200 or more depending on your area and service provider. If the fault is limited to a loose wiring connection, repair costs may be minimal. Getting a diagnostic quote from a qualified technician before committing to parts replacement is a practical approach.

It is not recommended to continue using the oven while this fault code is active. The F8-E4 code indicates a potential over-temperature condition combined with a latch state issue, both of which are safety-related concerns. Using the oven before the underlying problem is diagnosed and corrected could pose a risk of overheating. Disconnect power and have the latch assembly inspected before resuming use.

Start by disconnecting power to the oven, then inspect the latch assembly for any visible damage or mechanical obstruction. Use a multimeter to check the latch motor resistance, which should measure approximately 2450 ohms. Also test the latch switch and door open/closed switch for proper continuity, and inspect all related wiring connections for looseness or heat damage. Replace any component that tests outside of its expected range.