April 19, 2023

GE combination wall oven and microwave error codes

GE

These error code explanations can help you diagnose a problem with your GE combination wall oven and microwave. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for wall ovens, other major appliances, lawn and garden equipment, garage door openers, vacuum cleaners and more. Search for your model number to find a complete list of replacement parts for your wall oven.

Error Code
Condition
DIY advice
F20

Control senses oven overheated while door was unlocked

Check/Repair

If the oven actually overheated, the electronic oven control board likely has a stuck relay. Replace the electronic oven control board. If the oven is at room temperature, the oven temperature sensor could be defective. Disconnect electrical power to the oven and measure the oven temperature sensor resistance using a multimeter. You should measure about 1,100 ohms of resistance at room temperature. If the resistance is off by more than 100 ohms, replace the oven temperature sensor. If the resistance is correct, replace the electronic oven control board.

Possible parts
Oven temperature sensor, electronic oven control board
F21

Control senses oven overheated while door was locked

Check/Repair

If the oven actually overheated, the electronic oven control board likely has a stuck relay. Replace the electronic oven control board. If the oven is at room temperature, the oven temperature sensor could be defective. Disconnect electrical power to the oven and measure the oven temperature sensor resistance using a multimeter. You should measure about 1,100 ohms of resistance at room temperature. If the resistance is off by more than 100 ohms, replace the oven temperature sensor. If the resistance is correct, replace the electronic oven control board.

Possible parts
Oven temperature sensor, electronic oven control board
F22

Temperature regulation error

Check/Repair

The electronic oven control board can't regulate oven temperature. Disconnect electrical power and replace the electronic oven control board.

Possible parts
Electronic oven control board
F30 or F31

Oven temperature sensor failure

Check/Repair

Disconnect electrical power to the oven and check the wire harness connections between the oven temperature sensor and the electronic oven control board. Reconnect any loose wires or replace the wire harness if damaged. If the wire connections are okay, measure the oven temperature sensor resistance using a multimeter. You should measure about 1,100 ohms of resistance at room temperature. If the resistance is off by more than 100 ohms, replace the oven temperature sensor.

Possible parts
Oven temperature sensor, wire harness
F34

Electronic oven control board calibration failure

Check/Repair

The electronic oven control board can't calibrate the oven temperature. Disconnect electrical power to the oven and replace the electronic oven control board.

Possible parts
Electronic oven control board
F40

Oven meat probe failure

Check/Repair

Disconnect electrical power to the oven and check the wire harness between the meat probe receptacle and the electronic oven control board. Reconnect any loose wires or replace the wire harness if damaged. Replace the meat probe receptacle if damaged. If the wire connections and meat probe receptacle are okay, replace the meat probe.

Possible parts
Meat probe receptacle, meat probe, wire harness
F60

Electronic oven control board communication error

Check/Repair

Disconnect electrical power to the oven and check the wire harness connections between the electronic oven control board and the bridge control board. Check the wire harness connections between the electronic oven control board and the FAD (Fan Apparency Device) control board. Reconnect any loose wires or replace any wire harness if damaged. If the wire harness connections are okay, replace the electronic oven control board.

Possible parts
Electronic oven control board, wire harness
F66

Communication error between electronic oven control board and the bridge control board

Check/Repair

Disconnect electrical power to the oven and check the wire harness connections between the electronic oven control board and the bridge control board. Reconnect any loose wires or replace the wire harness if damaged. If the wire harness connections are okay, replace the electronic oven control board. If the problem continues, replace the bridge control board.

Possible parts
Electronic oven control board, bridge control board, wire harness
F80

Internal electronic oven control board failure

Check/Repair

Disconnect electrical power, wait 30 seconds and restore power. If the code returns, replace the electronic oven control board.

Possible parts
Electronic oven control board
F90

Oven door detected locked during standby or when cooking

Check/Repair

Disconnect electrical power and check the wire harness between the door lock and the electronic oven control board. Reconnect any loose wires or replace the wire harness if damaged. If the wire harness is okay, replace the door lock. If the problem continues, replace the electronic oven control board.

Possible parts
Door lock, electronic oven control board, wire harness
F91

Oven door detected un-locked during self-clean and steam clean

Check/Repair

Don't attempt to open the oven door when the oven is still hot during a cleaning cycle. Once the oven cools, disconnect electrical power and check the wire harness between the door lock and the electronic oven control board. Reconnect any loose wires or replace the wire harness if damaged. If the wire connections are okay, replace the door lock. If the problem continues, replace the electronic oven control board.

Possible parts
Door lock, electronic oven control board, wire harness
F92

Oven door lock detected being locked and unlocked simultaneously

Check/Repair

Disconnect electrical power and check the wire harness between the door lock and the electronic oven control board. Reconnect any loose wires or replace the wire harness if damaged. If the wire connections are okay, replace the door lock. If the problem continues, replace the electronic oven control board.

Possible parts
Door lock, electronic oven control board, wire harness
F96

Cooling fan detected running too slow

Check/Repair

Disconnect electrical power and check for obstructions blocking the cooling fan blade. If you find no obstructions, replace the cooling fan. If the problem continues, replace the FAD control board.

Possible parts
Cooling fan, FAD control board
F98

Cooling fan detected running too fast

Check/Repair

Disconnect electrical power and check for obstructions blocking the cooling fan blade. If you find no obstructions, replace the cooling fan. If the problem continues, replace the FAD control board.

Possible parts
Cooling fan, FAD control board

Most common symptoms to help you fix your wall oven

Choose a symptom to see related wall oven repairs.

Main causes: faulty oven temperature sensor, control system problem, weak burner igniter, damaged oven element…

Main causes: broken bake element, bad bake burner igniter, tripped thermal switch, control system failure…

Main causes: broken broil element, faulty broil burner igniter, control system failure…

Main causes: bad oven door lock assembly, faulty electronic control board, wiring failure…

Main causes: lack of gas supply, broken igniter, tripped circuit breaker, broken oven element, tripped thermal fuse, con…

Main causes: lack of electrical power, bad electronic control board, faulty oven control thermostat…

Most common repair guides to help fix your wall oven

These step-by-step repair guides will help you safely fix what’s broken on your wall oven.

How to replace a wall oven door outer glass panel

How to replace a wall oven door outer glass panel

Learn how to replace a damaged outer window panel on your wall oven door with these step-by-step instructions. …

Repair difficulty
Time required
 45 minutes or less
How to replace a wall oven control thermostat

How to replace a wall oven control thermostat

Get your oven temperature under your control by replacing a faulty oven control thermostat.…

Repair difficulty
Time required
 60 minutes or less
How to replace a wall oven thermal fuse

How to replace a wall oven thermal fuse

The thermal fuse trips to prevent the over from excessively overheating. The oven won't heat again until you replace the…

Repair difficulty
Time required
 60 minutes or less

Effective articles & videos to help repair your wall oven

Use the advice and tips in these articles and videos to get the most out of your wall oven.

Oven rack placement for the best results video

Oven rack placement for the best results video

Learn where to place the rack in your oven for optimal broiling, toasting, baking or roasting.…

How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…