What does LG refrigerator error code Er r2 mean?

Er r2 means the lower refrigerator temperature sensor is malfunctioning. Power-cycle the unit. If it persists, a technician needs to test and replace the sensor.

Er r2

LG Refrigerator Error Code Er r2 — Lower Refrigerator Sensor Fault

Advanced Fix 30–60 minutes Tools: Multimeter, Phillips screwdriver

What this means

The Er r2 error code indicates an anomaly in the temperature detection system for the lower portion of the refrigerator compartment. This sensor monitors the temperature in the lower section to ensure even cooling distribution. A short circuit, open circuit, or out-of-range reading from this sensor will trigger the error and may cause uneven cooling.

Alternate codes: r2

Step-by-step fix

1 steps

Power-cycle the refrigerator

Unplug for 2 minutes and restart. A temporary sensor glitch may clear.

When to call a professional

The sensor typically requires professional testing and replacement. The technician will test the thermistor resistance to confirm the failure.

Related error codes

Er rS

The refrigerator compartment temperature sensor is malfunctioning.

Moderate Fix · 20–40 minutes

Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.

Learn more about our sources

Parts you may need

Refrigerator Temperature Sensor (Thermistor)

Part #6322FR2046G · $10–$20

If the sensor fails resistance testing

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Quick Info

BrandLG

ApplianceRefrigerator

Error CodeEr r2

DifficultyAdvanced Fix

Est. Time30–60 minutes