LG refrigerator Er rS code: fridge temperature sensor error

The refrigerator compartment temperature sensor is reading out of range, so the fridge cannot control its temperature well. It is usually a failed sensor or a broken or loose sensor wire.

Likely causes

Listed from most to least common.

1. Fridge temperature sensor (thermistor) failed
2. Sensor wire shorted or broken
3. Loose sensor connector
4. Main control board fault

How to fix the Er rS code

Unplug the refrigerator or switch it off at the breaker before removing any panel or filter.

1. 1

   Step 1: Reset the power

   Unplug the refrigerator or switch off its breaker for 5 minutes, then restore power.

2. 2

   Step 2: Check the temperature

   Put a fridge thermometer in the middle shelf. The fridge should settle around 37°F. If it runs too warm or too cold, move perishable food out.

You'll need: Fridge thermometer.

Parts that may need replacing

Check your model number on the label inside the door or on the back before ordering.

• LG refrigerator temperature sensorCheck prices

When to call a technician

A sensor fault needs a technician to test the sensor and wiring, as it usually means removing interior panels.

A typical repair for this code costs $150–$300 in the US, including parts and labor. Prices vary by area and model.

Models this applies to

• French door refrigerators (LF, LR and LM series)
• Side-by-side refrigerators (LS and LRS series)
• InstaView Door-in-Door models
• Linear and inverter linear compressor models

Codes can differ slightly between models. Your owner's manual is the final word and is available from LG support.

Common questions