LG Mini-Split Code CH00
Status
No error. CH00 is the normal 'no fault stored' reading, not a failure. It shows up when a technician or a wired remote queries the system and nothing is wrong.
Manual wording: “00 No error”
Documented for: All LG residential single-zone and Multi F / Multi F MAX mini-splits
When to call a technician
No service needed - CH00 means the system is reporting no error.
A LG mini-split throwing this code repeatedly has a reason — clearing the code without fixing the cause just hides it.
Source
- MULTI F / MULTI F MAX Outdoor Unit Installation Manual (LG Electronics U.S.A., Inc., Multi F and Multi F MAX multi-zone heat pump outdoor units (LMU series) with standard wall-mount, Art Cool, cassette and ducted indoor units) · checked 2026-08-25