LG ductless-mini-split — LG residential air conditioners covered by the United States help-library article that groups these codes as sensor problems Error Codes Directory

LG CH01, CH02, CH06 and CH12: the codes LG calls a sensor problem

LG's own help-library article does not give these codes one meaning each. It places CH01, CH02, CH06, CH12, the CH41 to CH48 range, E1 to E3, E7, E8, F2 and F3 in a single category described as a problem with a sensor. The practical consequence is that the code identifies which sensing input is unhappy, while LG's published customer guidance stops at the category. Applies to: LG residential air conditioners covered by the United States help-library article that groups these codes as sensor problems The grouping quoted here is LG's United States help-library guidance for residential air conditioners. LG multi-split and commercial equipment publish fuller per-code tables in their service literature, and LG documentation varies by region and by generation, so a code on a commercial LG system is read from that system's own manual. Owner-safe checks: Write the code down exactly as shown, since a zero and a letter O are easy to confuse on a small indoor display. | Carry out the single power interruption LG describes, at the plug or the breaker, and wait about five minutes before restoring supply. | Compare the displayed room temperature with a separate thermometer and record both figures before the reset. Qualified technician: LG instructs the owner not to disassemble the air conditioner or replace internal parts, and warns that doing so may cause fire, electric shock, or serious injury. | If the same code appears again after one reset, LG's stated instruction is to stop using the product and request service to prevent further damage.