GE Microwave F1 error code
Microwave
Reviewed August 2025 · sources below
On GE microwaves, error F1 indicates: Open thermal sensor — the cavity got too hot, or the sensor circuit is open. Start with a 5-minute power reset at the breaker, then follow the microwave-specific checks below before ordering replacement parts for F1.
Parts for this repair
We don't yet have a verified exact part number for this model. Search for a compatible Open thermal sensor.
Check current price & availability
FixApplianceCode may earn a commission from qualifying purchases.
Safe to keep using?
Stop using
No immediate safety hazard detected, but monitor during use.
- • Unplug the appliance before inspection.
- • Microwave high-voltage components can retain lethal charge even when unplugged.
- • Do not continue using the appliance until the cause is identified.
5 product recalls may apply
Brand-level matches — verify your model.
Show
5 product recalls may apply
Brand-level matches — verify your model.
- Notice
Samsung Over-the-Range Microwaves Recalled Due to Shock Hazard
Nov 2009 · Confirm your model
- Notice
GE Recalls Ranges Due to Fire and Burn Hazards
Apr 2009 · Confirm your model
- Notice
GE Recalls to Inspect and Repair Wall Ovens Due to Fire and Burn Hazards
Nov 2008 · Confirm your model
- Notice
eStyle Recalls Mini Chef Toy Kitchens Due to Choking and Tip-Over Hazards
Jun 2008 · Confirm your model
- Notice
General Electric Recalls Microwave Combo Wall Ovens Due to Fire Hazard
Dec 2007 · Confirm your model
Likely causes
Many codes resolve with cleaning, resetting, or reconnecting.
Check: Power-cycle the appliance and check for obvious blockages or loose connections.
Est. cost: $0–$0
Wear or electrical failure of an internal part.
Check: If basic checks fail, the faulty component likely needs replacement.
Est. cost: $0–$100
What it means
Open thermal sensor — the cavity got too hot, or the sensor circuit is open.
How to fix it
- Unplug the microwave and wait at least 5 minutes — high-voltage components can hold a lethal charge even when unplugged.
- Reset GE F1: leave power off for 5 minutes, restore power, then restart. Confirm whether F1 returns.
- Check the most common cause for F1: Open thermal sensor — the cavity got too hot, or the sensor circuit is open.
- Inspect the control pad for stuck keys, damaged membrane switches, and loose ribbon cable connections.
- If a reset and basic checks don't clear the code, use our lookup tool for AI-powered diagnosis or contact a qualified technician.
- Reassemble, restore power, and run a test cycle. If F1 returns, the faulty component likely needs replacement.
Call a pro when: Call a technician before opening the cabinet — microwave high-voltage parts can retain a lethal charge even when unplugged. Also call if you smell burning, see sparking, or the code returns after a reset.
FAQ
What does F1 error code mean on a GE microwave?
Open thermal sensor — the cavity got too hot, or the sensor circuit is open.
How do I reset GE microwave F1?
Unplug the microwave or switch it off at the breaker for 5 minutes, then restore power and restart. A reset clears a stored F1 after a glitch, but the code will return if the underlying fault is still present.
What part do I need for GE F1?
Not always — some F1 errors are caused by user-fixable issues like clogs or unbalanced loads. Try the troubleshooting steps first.
Can I fix GE error F1 myself?
Basic resets and stuck-key checks are DIY-safe. Do not open the microwave cabinet or discharge the high-voltage capacitor yourself — call a qualified technician for internal repairs.
GE F1 on specific models
Other GE Microwave codes
Prevent this problem next time
- Follow manufacturer maintenance schedule
- Address small issues before they worsen
Sources
Manufacturer meaning
Open thermal sensor — the cavity got too hot, or the sensor circuit is open.
FixApplianceCode guidance
Start with basic checks for GE F1 before ordering parts.
Source type: Part database
Source: ModelPartFinder + FixApplianceCode editorial
Last reviewed: 2026-09-24
Repair guidance is for informational purposes only. We do not guarantee that any fix will resolve your issue, and you assume all risk when following these steps. Terms & disclaimer
FixApplianceCode may earn a commission when you purchase through qualifying links, at no additional cost to you. Affiliate disclosure


