Er SS
LG
Shorted Temperature Sensor
Error code “Er SS” and temperature readings may be inaccurate; cooling may be erratic.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Shorted thermistor in any compartment, Moisture bridging sensor terminals, Damaged sensor harness, Faulty main PCB interpreting sensor signal
How to Fix / Troubleshooting
Safety: Disconnect power before testing sensors.
- Identify sensor: Consult the service manual for your LG model to determine which sensor is indicated by SS.
- Inspect sensor: Check for water intrusion or damaged insulation around the sensor.
- Test resistance: A shorted sensor will read near 0 Ω. Replace any sensor with abnormally low resistance.
- Check wiring: Inspect and repair any damaged harness sections.
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Repair Difficulty
Medium
3/5
Required Part
Temperature Sensor (Thermistor)
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