er rf
Moderate
LG · Refrigerators
Fridge Sensor Error
Quick Answer
Error code Er rF on your LG Refrigerators means: Fridge Sensor Error. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Unplug the refrigerator and locate the fresh food compartment thermistor, typically clipped to the interior wall or ceiling of the fridge section
2
Check that the sensor is properly mounted in its intended position
3
Disconnect the sensor and measure resistance with a multimeter; at 37 degrees Fahrenheit, expect approximately 16,000 to 17,000 ohms
4
Trace the wiring harness to the control board and check for damage or loose connectors
5
Replace the sensor if it tests outside the expected resistance range
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Fresh food thermistor (LG part #6323JA2002K)
Sensor mounting clip
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