Error Code F-1
Opened Sensor — Oven sensor (thermistor) remains open for over 1 minute during cooking
Moderate
Address soon - your appliance may not work properly
Also displayed as: F-1
How to Fix
- 1
Unplug the unit.
- 2
Check whether the sensor connector is disconnected or loose. Check sensor connection and CN06 of Main PCB. If loose, reconnect or adjust.
- 3
Measure resistance of thermistor at pins 5 and 6 of CN6 on the Main PCB. Normal value is approximately 1.09 kΩ at 25°C (77°F). If resistance is abnormal (open/infinite), replace the defective thermistor.
- 4
If thermistor resistance is normal, plug the unit back in and enter test mode: press any button with Mode knob in Off, then press '4' and '6' keys simultaneously for 1 second, press '4' and '6' again for 1 second.
- 5
If test mode confirms normal thermistor value, replace the Main PCB.
- 6
If fault persists after replacing Main PCB, replace the Relay PCB.
This Error Applies To
LG LSGL6335 Series Ovens & Ranges (2021) (2021–present)
Related Error Codes
Key Shorted Error — Some keys are continuously short for over 60 seconds
Oven Hot — Oven temperature exceeds 650°F continuously for 2 minutes during cooking (excluding self-clean)
Shorted Sensor — Oven sensor (thermistor) is shorted for over 1 minute during cooking
Convection Fan Error — Convection fan operation cannot be detected for over 1 minute when the convection fan should be operating
No Heating — Starting oven temperature does not exceed 150°F and temperature is less than or equal to starting temperature after 5 minutes of preheating with door closed
Door Lock Fail — Door lock failure when operating the lock motor
Stalled Fan Lock Error — Cooling fan is stalled during self-clean cycle