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LG ARUV Series - User Manual

LG ARUV Series
338 pages
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System
Air Conditioner
SVC MANUAL
MODEL : ARUV/ARUN Series
ARNU Series
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com

Table of Contents

Other manuals for LG ARUV Series

Questions and Answers

  • S
    Sara AvilaJul 30, 2025
    Why does my LG ARUV Air Conditioner show a high pressure error at cooling?
    • M
      Melissa Kaufman DDSJul 30, 2025
      If your LG Air Conditioner's outdoor fan shows a high-pressure error during cooling, it could be due to a motor failure or poor ventilation around the outdoor heat exchanger. First, turn off the outdoor units for a while and then check if the outdoor fan is working. Also, make sure there are no obstructions blocking airflow around the outdoor units.
  • J
    Jeffrey SotoAug 3, 2025
    What to do if the outdoor EEV in my LG Air Conditioner has no operating sound at applying power?
    • N
      nicholsonrichardAug 3, 2025
      If the outdoor EEV in your LG Air Conditioner isn't making any operating sounds when power is applied, the coil might have failed. Check the resistance between the terminals to diagnose this issue.
  • D
    Debra JonesAug 8, 2025
    Why does the compressor stop during running in my LG Air Conditioner?
    • M
      Mrs. Alexandria WrightAug 8, 2025
      If your LG Air Conditioner's compressor stops while running, it might be due to motor insulation failure. Check the resistance between the terminals and the chassis.
  • R
    Rhonda ThompsonAug 11, 2025
    What to do if my LG ARUV's outdoor EEV heating fails and defrosts frequently?
    • K
      Katherine McconnellAug 11, 2025
      If the outdoor EEV in your LG Air Conditioner is experiencing heating failure and causing frequent defrosting, it could be due to a bad connector contact. Inspect the connector to resolve this issue.
  • C
    Charles BoydAug 16, 2025
    What to do if LG Air Conditioner's outdoor EEV heating fails and the outdoor heat exchanger part is frozen?
    • J
      Jenna ReyesAug 16, 2025
      If your LG Air Conditioner's outdoor EEV is experiencing heating failure and the outdoor heat exchanger part is frozen, the EEV may be clogged. Service is necessary to resolve this issue.
  • H
    Heidi GreenAug 20, 2025
    What to do if my LG Air Conditioner's outdoor EEV has low pressure error or discharge temperature error?
    • A
      audreywellsAug 20, 2025
      If your LG Air Conditioner's outdoor EEV is showing a low-pressure error or discharge temperature error, it could be that the EEV is clogged. Service is necessary to resolve this issue.
  • J
    Jamie SimsAug 25, 2025
    How to troubleshoot a non-operating compressor in my LG ARUV?
    • T
      Tanya GouldAug 25, 2025
      If the compressor in your LG Air Conditioner isn't operating, it could be due to broken motor insulation. Check the resistance between the terminals and the chassis.

Summary

Safety Precautions

Installation Safety

Ensures proper installation procedures are followed to prevent electrical hazards and property damage.

Part 1 General Information

Model Names

Lists the various model names for indoor and outdoor units, including their specifications.

External Appearance

Provides visual representations and specifications for the external design of indoor and outdoor units.

Combination of Outdoor Units

Details the possible combinations of outdoor units based on system capacity and modules.

Nomenclature

Explains the coding system used for naming indoor and outdoor unit models.

Part 2 Indoor Units

Ceiling Cassette Types

Covers specifications, functions, and diagrams for 1-way, 2-way, and 4-way ceiling cassette indoor units.

Art Cool Series Types

Details specifications, functions, and diagrams for Art Cool, Art Cool(Wide), and Art Cool(Mirror) indoor units.

Ceiling Concealed Duct Types

Provides information on low static, built-in, and high static concealed duct indoor units.

Wall Mounted Type

Details specifications, functions, and diagrams for wall-mounted indoor units.

Convertible Type

Covers specifications, functions, and diagrams for convertible type indoor units.

ARUV;ARUN Series

Specifications

Detailed technical specifications for ARUV/ARUN series outdoor units, including cooling and heating capacities.

Function

Explains the functions and operational modes of the ARUV/ARUN series outdoor units.

Dimensions`

Provides dimensional drawings and measurements for various ARUV/ARUN series outdoor units.

Piping Diagrams

Illustrates the refrigerant flow for cooling, heating, and defrost operations in the ARUV/ARUN series.

Function

Basic Control Functions

Details normal operation, compressor control, EEV control, and fan control for the system.

Special Control Functions

Explains oil return, defrost, oil equalizing, and stopping operations.

Protection Control Functions

Covers pressure, discharge temperature, inverter, and phase detection protection mechanisms.

Other Control Functions

Describes initial setup, indoor unit checking, and emergency operation modes.

Trouble Shooting guide

Main Component Failure Phenomena

Lists common phenomena and potential causes for main component failures in the system.

Key Component Checking Methods

Provides step-by-step procedures for checking key components like compressors, fans, and EEVs.

Self-diagnosis Function

Details the error codes and indicators for self-diagnosis of system failures.

Exploded View & Replacement Parts List

UW1 Series Exploded Views

Exploded diagrams for UW1 series main and sub units, including heat pump and cooling models.

UY2 Series Exploded Views

Exploded diagrams for UY2 series main and sub units, including heat pump and cooling models.

TE Series Exploded Views

Exploded diagrams for TE series indoor units, covering standard and plasma models.

TH Series Exploded Views

Provides exploded views for TH series indoor units, including standard and plasma models.

TD Series Exploded Views

Exploded diagrams for TD series indoor units, covering standard and plasma models.

TJ Series Exploded Views

Provides exploded views for TJ series indoor units, including standard and plasma models.

TL Series Exploded Views

Exploded diagrams for TL series indoor units, covering standard and plasma models.

LG ARUV Series Specifications

General IconGeneral
BrandLG
ModelARUV Series
CategoryAir Conditioner
LanguageEnglish

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