Lg Split AC Master Error Code List
Md AFSAR •
The LG Split AC Master Error Code List helps you quickly identify faults displayed on the indoor unit. Each error code corresponds to a specific issue, such as sensor failure, communication error, fan motor problem, or refrigerant-related fault. By referring to the master list, technicians and users can accurately diagnose the problem and take the correct troubleshooting or repair steps, ensuring efficient and reliable AC performance.
| Error Code | Meaning |
|---|---|
| CH01 | Indoor Air Sensor Problem ( Open/Short ) |
| CH02 | Indoor Coil Sensor Problem ( Open/Short ) |
| CH05 | Communication Failure (indoor to outdoor) |
| CH06 | Indoor Sensor Exit Pipe |
| CH09 | EEPROM Error (PCB Problem) |
| CH10 | Indoor Unit Fan Problem |
| CH12 | Indoor Sensor Middle Pipe ( Open/Short ) |
| CH21 | DC Peak (IPM) fault (PCB PROBLEM) |
| CH22 | CT2 (Max СT) (PCB PROBLEM) |
| CH23 | DC link low voltage |
| CH26 | DC Comp position error (Comp. Problem) |
| CH27 | PSC fault |
| CH29 | Comp phase over current |
| CH32 | Inverter compressor D pipe overheat |
| CH35 | High pressure sensor high |
| CH35 | Low pressure sensor low |
| CH36\38 | Refrigerant leak detection |
| CH37 | Exceed the compression ration limit |
| CH40 | CT sensor error |
| CH41 | Discharge pipe sensor error |
| CH42 | Low pressure sensor error |
| CH43 | High pressure sensor error |
| CH44 | Outdoor air sensor error |
| CH45 | Cond middle pipe sensor Error |
| CH46 | Suction pipe sensor Error |
| CH51 | Excess capacity (Mismatch between IDU and odu unit) |
| CH53 | Communication error |
| CH61 | Condenser Pipe high temperature |
| CH62 | Heat sink sensor temp. High |
| CH67 | BLDC motor fan lock (Check Outdoor Motor) |
| CH72 | Detect 4 way valve transfer failure |
| CH93 | Communication error |
LG Error Code Brand Card
