LG Oven / Range F1 error code
- Oven / Range
On LG oven / ranges, error F1 indicates: Oven thermistor error — the control cannot read oven temperature. Start with a 5-minute power reset at the breaker, then follow the oven / range-specific checks below before ordering replacement parts for F1.
Reviewed August 2025 · sources below
Safe to keep using?
Stop using
Severe overheating requires stopping use until the cause is identified.
- • Unplug the appliance before inspection.
- • 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
Triangle Tube Recalls Prestige and Aerco Esteem Gas Boilers Due to Carbon Monoxide (CO) Poisoning Hazard; Two Deaths Reported
Feb 2025 · Confirm your model
- Notice
LG Recalls Electric Ranges Due to Fire Hazard
Feb 2025 · Confirm your model
- Notice
Triangle Tube Recalls to Repair Gas Boilers Due to Risk of Carbon Monoxide Hazard; One Death Reported; In-Home Remedy May Be Delayed Due To COVID-19 Restrictions
Jul 2020 · Confirm your model
- Notice
LG Recalls Top-Loading Washing Machines Due to Risk of Injury
Dec 2012 · Confirm your model
- Notice
LG Electronics Recalls Electric Ranges Due to Burn and Fire Hazards
Nov 2012 · Confirm your model
Next step
Still seeing F1?
Show a photo or describe the symptom. Answer a few safety-first questions and see whether a part is needed.
Free guided checks · No account required · Don’t open live electrical, gas, or refrigerant equipment
How to fix F1
- Unplug the oven / range or turn off power at the breaker before inspecting any components.
- Reset LG F1: leave power off for 5 minutes, restore power, then restart. Confirm whether F1 returns.
- Check the most common cause for F1: Oven thermistor error — the control cannot read oven temperature.
- Inspect hoses, connections, and visible wiring for damage, clogs, or loose fittings.
- 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 if you smell burning, see sparking, hear grinding from the motor, or the code returns after replacing the suspected part.
What F1 means
Oven thermistor error — the control cannot read oven temperature.
Parts for this repair
We don't yet have a verified exact part number for this model. Search for a compatible Oven thermistor.
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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
Professional assistance recommended
This issue may be unsafe for DIY repair. Follow the safety guidance above and contact a qualified technician.
Questions about F1
What does F1 error code mean on a LG oven / range?
Oven thermistor error — the control cannot read oven temperature.
How do I reset LG oven / range F1?
Unplug the oven / range 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 LG 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 LG error F1 myself?
Many F1 errors can be fixed DIY if you're comfortable with basic tools. Start with the reset and steps above. If the issue involves electrical components or the code returns after replacing parts, call a professional.
LG F1 on specific models
Other LG Oven / Range codes
Prevent this problem next time
- Follow manufacturer maintenance schedule
- Address small issues before they worsen
Sources
Manufacturer meaning
Oven thermistor error — the control cannot read oven temperature.
FixApplianceCode guidance
Start with basic checks for LG F1 before ordering parts.
Source type: Part database
Source: ModelPartFinder + FixApplianceCode editorial
Last reviewed: 2026-10-24
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
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