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LG ACHH020LBAB - User Manual

LG ACHH020LBAB
107 pages
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Air-cooled Inverter Scroll Chiller
SVC MANUAL
MODEL : ACHH Series
CAUTION
Before Servicing the unit, read the safety precautions in SVC manual.
Only for authorized service personnel.
CONFIDENTIAL
Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.

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Questions and Answers

  • N
    nicolemorrowAug 5, 2025
    What to do if my LG Air Conditioner won't start?
    • W
      William AlexanderAug 5, 2025
      If your LG Air Conditioner isn't starting, there are several things to check. First, examine the power supply: ensure the over-current protection device is working, the fuse isn't disconnected, and try resuming power to the unit. Also, verify the device configuration and wiring are correct. If an alarm is active, check the alarm condition, follow the troubleshooting process for alarms, and check the HMI input channel for alarm condition input. Finally, verify that the compressor has not entered a start delay time.

Summary

Safety Precautions

Installation Safety

Guidelines for safe unit installation, covering electrical and structural aspects.

Operation Safety

Safe practices during unit operation, handling, and maintenance.

Wiring Diagrams

Component Failure Analysis

Compressor Failures

Common issues, causes, and troubleshooting for compressor failures.

Error Code Troubleshooting

General Error Diagnosis

Step-by-step troubleshooting procedures for various error codes.

Specific Component Troubleshooting

Detailed troubleshooting flowcharts for key components like compressors and EEVs.

LG ACHH020LBAB Specifications

General IconGeneral
BrandLG
ModelACHH020LBAB
CategoryChiller
LanguageEnglish

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