LG air conditioner error codes
LG washers and dishwashers show short letter codes like OE, IE or UE. LG refrigerators add an Er prefix, such as Er IF or Er FF, ovens show an F and a number such as F9 or F10, and mini-split air conditioners show CH followed by two digits, such as CH05. Most can be cleared by fixing the cause and turning the appliance off and on again.
| Code | What it means | Fix |
|---|---|---|
| CH05 | Indoor and outdoor units not communicating (mini-split) | Easy DIY |
| CH38 | Low refrigerant protection (mini-split) | Technician job |
| CH61 | Unit overheating (mini-split) | Easy DIY |
| CH10 | Fan motor fault (mini-split and window) | Moderate DIY |
| CH01 | Indoor temperature sensor fault (mini-split) | Technician job |
| CH21 | Outdoor compressor or inverter fault (mini-split) | Technician job |
| FLalso P2 | Water tank full (portable) | Easy DIY |
| E1 | Indoor pipe sensor fault (window and portable) | Technician job |
| E3 | No refrigerant detected (window and portable) | Technician job |