LG Refrigerators

Error Code E rt

Defect of room temperature sensor

Moderate

Address soon - your appliance may not work properly

How to Fix

  1. 1

    Check connector between Main PCB and RT sensor for looseness or disconnection.

  2. 2

    Reconnect or repair if loose.

  3. 3

    Measure sensor resistance. If 0 ohm (short) or open (infinite), replace the sensor.

  4. 4

    Compare measured resistance to sensor temperature table. If abnormal, replace sensor.

  5. 5

    If resistance is within spec, inspect harness. If harness is intact, replace the main PCB.

This Error Applies To

LG LF30S8210S Series Refrigerators

Service manual exact match: LF30S8210S

Need more help with your LG refrigerators?