GE Microwave F3 — What It Means & How to Fix It
F3 means the touch pad is reading as shorted — often a key pressed over 60 seconds or moisture on the pad.
What this code means
GE defines F3 as a shorted touch pad; the manual also shows it when a key has been activated for more than 60 seconds. Either way, the keypad circuit thinks a button is stuck down.
F3 appears when something is pressing or bridging a key — a leaning pan, a wet towel, or a genuinely stuck button.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| Moisture or residue on the touch pad | Very common | yes |
| A key held down or physically stuck | Common | yes |
| Touch pad membrane failing internally | Less common | no |
What you can try yourself
- Clear anything leaning on the keypad, then wipe the pad dry with a soft cloth.
- Reset the breaker for 30 seconds so the pad rereads its state.
- Press and release each zone of the pad to verify none stay silent-stuck.
- If F3 returns after a proper dry-out, the membrane is failing — a technician replaces the keypad.
When to call a technician
- F3 returns after the pad is clean, dry, and unobstructed
- The oven starts cycles on its own as if a key were pressed
Typical professional repair cost: $0 for the clean-and-dry fix, or roughly $100–$200 if the keypad membrane needs replacing.
Frequently asked questions
I spilled water on the panel — is that it?
Very likely. Water bridging the touch pad is the classic F3 trigger. Dry it thoroughly and reset the breaker before suspecting hardware.
Does F3 affect cooking?
Only indirectly — the pad still locks out the oven until the short clears...so the short is real — time for a keypad replacement.
Sources checked
Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.
Related GE codes
- GE Microwave F1 F1 means the thermal sensor circuit reads open — or the oven detected excessive heat. Cool it down and try the 30-second reset.
- GE Microwave F2 F2 is a shorted thermal sensor fault — the sensor circuit reads closed when it shouldn't, so the oven locks out.
- GE Microwave F4 F4 means the humidity sensor circuit reads open — the sensor that tracks steam during cooking isn't reporting, so the oven locks out.
- GE Microwave F5 F5 means the humidity sensor reads shorted — the steam sensor is stuck in one state, so sensor-cook cycles lock out.
More: all GE microwave codes · all GE codes · search by symptom