Brand:
LG
Category: Air Conditioner
Document Type: Parts/Service
Language: EN
Parts/Service for PAHCMR000
Uploaded: Nov. 21, 2025, 6:44 p.m.
Manual Publish Date: 2017-01-01
This manual provides service information for the LG Air Conditioner Communication Kit models PAHCMR000 and PAHCMS000. It includes safety precautions, model standards, functions, wiring diagrams, disassembly instructions, and troubleshooting guides. Key sections cover electrical safety, model identification, system functions, accessory details, detailed wiring schematics for both models, a parts list with corresponding diagrams, and a comprehensive troubleshooting section with error codes and remedies for both the communication kit and the outdoor unit.
Troubleshooting and error codes
| Problem | Cause | Remedy |
|---|---|---|
| AHU Communication Kit does not work | No power supply | Check the electrical connection and voltage of the power supply. |
| Wiring is wrong | Check the electrical connection of the Communication Kit (Refer to the circuit diagram of the Communication Kit) | |
| AHU Communication Kit is broken | Check the electrical and mechanical part. |
| Display Number | Error Item | Cause of Error |
|---|---|---|
| CH 01 | Room Temperature | Temperature sensor disconnection or short circuit on Room or RA of AHU |
| CH 02 | Pipe In Temperature sensor error | Temperature sensor disconnection or short circuit on pipe inlet of AHU |
| CH 03 | Communication error between wired remote controller and Comm. Kit | No communication signal for more than 3 minutes from wired remote controller to the Comm. Kit |
| CH 05 | Communication error between Comm. Kit and Outdoor Unit | No communication signal for 5 minutes continuously from Comm. Kit to Outdoor Unit |
| CH 06 | Pipe Out Temperature sensor error | Temperature sensor disconnection or short circuit on pipe outlet of AHU |