How do I fix error code E rt on a LG refrigerators?

1. undefined: Check connector at Main PCB for the RT sensor; reconnect if loose. 2. undefined: With power OFF, measure RT sensor resistance. If 0 Ohm (short), replace sensor. 3. undefined: If open/infinite (OL), check wire harness continuity and connector pins. 4. undefined: Compare resistance value against temperature chart; if outside tolerance, replace sensor. 5. undefined: If sensor checks pass, replace the main PCB.

LG Refrigerators

Error Code E rt

Defect of room temperature (RT) sensor

Moderate

Address soon - your appliance may not work properly

Also displayed as: E rt

How to Fix

1
Check connector at Main PCB for the RT sensor; reconnect if loose.
2
With power OFF, measure RT sensor resistance. If 0 Ohm (short), replace sensor.
3
If open/infinite (OL), check wire harness continuity and connector pins.
4
Compare resistance value against temperature chart; if outside tolerance, replace sensor.
5
If sensor checks pass, replace the main PCB.

This Error Applies To

LG LF29S8330 Series Refrigerators

Service manual exact match: LF29S8330SService manual exact match: LF29S8330BService manual exact match: LF29S8330WService manual exact match: LF29S8330D