LG Refrigerator Error Code Er FS
Freezer temperature sensor error
The NTC thermistor measuring freezer compartment temperature has failed.
What Does Error Code Er FS Mean on a LG Refrigerator?
Freezer temperature sensor error.
The NTC thermistor measuring freezer compartment temperature has failed.
What Causes Error Code Er FS?
Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:
- 1 Thermistor open circuit 65% of cases
- 2 Connector loose 25% of cases
- 3 Wiring harness fault 10% of cases
How to Fix LG Refrigerator Error Code Er FS
- 1
Test thermistor
At 32°F/0°C: ~16k ohms.
🔩 Multimeter - 2
Reseat connector
Firmly reconnect sensor wiring.
- 3
Replace thermistor
Clip-on replacement to evaporator.
🔩 LG thermistor ($15–$40)
How to Reset Error Code Er FS
Allow 24 hours temperature stabilization after repair.
Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.
When to Call a Professional
If new thermistor and error persists, control board sensor input failed.
Related Error Codes
Find Replacement Parts
Use these links to find the exact replacement parts for your LG Refrigerator:
External links — ApplianceErrors.com is not affiliated with these retailers.