As a portable air conditioner, the LP1018WNR shares its core mechanism with the rest of LG’s air conditioner lineup. On this platform, the CH05 fault code is one of the more common reasons it gets a service call. LG’s own US product page flags this exact model discontinued (read 24 September 2026); it is out of production but not out of the field, and it is exactly the kind of model that has nowhere else to turn for support.
Service calls on this air conditioner most often trace to one of a short list: the CH05, CH10 or CH21 fault codes. We confirm which one applies against the model and serial number before ordering a part.
Key Features
- Multi-speed fan control
- Programmable on/off timer
- Portable air conditioner
Most Common Issues on This Model
CH05 fault code — listed CH-prefixed fault on LG room air conditioners
CH10 fault code — listed CH-prefixed fault on LG room air conditioners
CH21 fault code — listed CH-prefixed fault on LG room air conditioners