GE  Wall Oven  Combo Error Codes

These error code explanations can help you diagnose a problem with your GE combo 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. You can also search for owner’s manuals and find wall oven replacement parts.

Check out our wall oven error code charts for information on a different GE model or another brand of wall oven.

Error Code Condition Check/Repair Shop Parts
F20 Control senses oven overheated while door was unlocked 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.
See the repair guide to fix it yourself
Oven temperature sensor, electronic oven control board
F21 Control senses oven overheated while door was locked 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.
See the repair guide to fix it yourself
Oven temperature sensor, electronic oven control board
F22 Temperature regulation error The electronic oven control board can't regulate oven temperature. Disconnect electrical power and replace the electronic oven control board.
Electronic oven control board
F30 or F31 Oven temperature sensor failure 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.
See the repair guide to fix it yourself
Oven temperature sensor, wire harness
F34 Electronic oven control board calibration failure The electronic oven control board can't calibrate the oven temperature. Disconnect electrical power to the oven and replace the electronic oven control board.
Electronic oven control board
F40 Oven meat probe failure 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.
Meat probe receptacle, meat probe, wire harness
F60 Electronic oven control board communication error 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.
Electronic oven control board, wire harness
F66 Communication error between electronic oven control board and the bridge control board 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.
Electronic oven control board, bridge control board, wire harness
F80 Internal electronic oven control board failure Disconnect electrical power, wait 30 seconds and restore power. If the code returns, replace the electronic oven control board.
Electronic oven control board
F90 Oven door detected locked during standby or when cooking 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.
Door lock, electronic oven control board, wire harness
F91 Oven door detected un-locked during self-clean and steam clean 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.
Door lock, electronic oven control board, wire harness
F92 Oven door lock detected being locked and unlocked simultaneously 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.
Door lock, electronic oven control board, wire harness
F96 Cooling fan detected running too slow 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.
Cooling fan, FAD control board
F98 Cooling fan detected running too fast 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.
Cooling fan, FAD control board