ErrorCodeDoctor
LG · Air Conditioner

LG Air Conditioner CH01 error code

Difficulty: Hard · Cost: $80–$200 · Duration: Requires professional service

The CH01 error means your LG air conditioner detected a short or open circuit in the indoor pipe sensor — the component that monitors the temperature of the refrigerant pipe inside the indoor unit. This is an auto-stop protection error meaning the unit has shut itself down to prevent further damage. There are no DIY steps to resolve this error. The unit requires a professional repair service.

Common causes

  • Short circuit in the indoor pipe temperature sensor
  • Open circuit in the indoor pipe sensor wiring
  • Indoor pipe sensor has failed

How to fix it

  1. 1

    There are no user-serviceable steps for this error

  2. 2

    Unplug the unit and do not attempt to use it

  3. 3

    Contact a qualified technician for sensor inspection and replacement

Related LG Air Conditioner error codes

1

CH04

The indoor unit is not draining condensate water properly

easy
2

CH05

Communication between the indoor and outdoor units has been lost

medium
3

CH07

Two connected units are set to conflicting operating modes

easy
4

CH38

The air conditioner is low on refrigerant gas

hard