CostolioGE ranges and wall ovens error codes
8 range / oven error codes for GE ranges and wall ovens, what each one means and what to try, paraphrased from GE's own source. Codes vary by model, so confirm in your own manual.
All codes
- F0 / F1 / F6 / F7 A problem with the keypanel; many times the keypanel needs to be replaced.
- F2 / F20 Oven over temperature.
- F3 / F4 The oven sensor needs to be replaced.
- F5 / F8 / FF Control error.
- F9 / FC Door lock circuit error.
- FD Probe or probe receptacle error.
- Bad Line Power reaches the unit but it has not been wired correctly.
- LOC Child lockout is on.
F0 / F1 / F6 / F7
What it means: A problem with the keypanel; many times the keypanel needs to be replaced. This one often needs a licensed technician.
What to try
- Shut off the circuit breaker or fuse for a minute or two to clear it.
- If it does not clear, leave the range off at the breaker and schedule service.
F2 / F20
What it means: Oven over temperature. This one often needs a licensed technician.
What to try
- Shut off the circuit breaker or fuse for a minute or two to clear it.
- If it does not clear, leave the range off at the breaker and schedule service.
F3 / F4
What it means: The oven sensor needs to be replaced. This one often needs a licensed technician.
What to try
- Shut off the circuit breaker or fuse for a minute or two to clear it.
- If it does not clear, leave the range off at the breaker and schedule service.
F5 / F8 / FF
What it means: Control error. This one often needs a licensed technician.
What to try
- Shut off the circuit breaker or fuse for a minute or two to clear it.
- If it does not clear, leave the range off at the breaker and schedule service.
F9 / FC
What it means: Door lock circuit error. This one often needs a licensed technician.
What to try
- Shut off the circuit breaker or fuse for a minute or two to clear it.
- If it does not clear, leave the range off at the breaker and schedule service.
FD
What it means: Probe or probe receptacle error. This one often needs a licensed technician.
What to try
- Remove and reinsert the probe.
- Shut off the circuit breaker or fuse for a minute or two to clear it.
- If it does not clear, leave the range off at the breaker and schedule service.
Bad Line
What it means: Power reaches the unit but it has not been wired correctly. This one often needs a licensed technician.
What to try
- Contact your installer or an electrician.
LOC
What it means: Child lockout is on. You can usually fix this yourself.
What to try
- Turn off the lockout as your manual describes.
Source
- Range and wall oven error codes (GE Appliances support) (checked 2026-11-02)
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