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LG LS-K1860YL - User Manual

LG LS-K1860YL
84 pages
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MODEL : LS-J0761NL/NM/NN
LS-J0962NL/NM/NN/YL
LS-L1261NL/NM/NN
LS-K1860NL/NM/NN/YL
LS-K1861YL
LS-K18612L
Room Air Conditioner
SERVICE MANUAL
CAUTION
-BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
-ONLY FOR AUTHORIZED SERVICE PERSONNEL.
WEBSITE http://biz.LGservice.com
E-MAIL http://www.LGEservice.com/techsup.html

Questions and Answers

  • K
    Kenneth KellerAug 8, 2025
    Why is my LG Air Conditioner leaking refrigerant?
    • R
      Roger EdwardsAug 8, 2025
      If your LG Air Conditioner experiences refrigerant leakage, it could stem from a clog in the refrigeration cycle or a defective compressor.
  • B
    Brandon KingAug 14, 2025
    Why doesn't the high pressure rise quickly at the beginning of operation in my LG LS-K1860YL?
    • T
      teresa33Aug 14, 2025
      If your LG Air Conditioner's high pressure doesn't rise quickly at the start, it might be due to an excessive amount of refrigerant.
  • E
    Erin KennedyAug 20, 2025
    What causes low current in my LG LS-K1860YL?
    • S
      Samantha Clark MDAug 20, 2025
      If the current is low in your LG Air Conditioner, this could be caused by a defective compressor or a defective 4-way reverse valve.
  • L
    Larry JohnsonAug 26, 2025
    Why does my LG Air Conditioner have higher suction pressure and normal temperature?
    • D
      dennis18Aug 26, 2025
      If your LG Air Conditioner has higher suction pressure and normal temperature, it might be due to an excessive amount of refrigerant. In this case, high pressure does not quickly rise at the beginning of operation.
  • A
    Anna WellsSep 1, 2025
    What causes higher suction pressure and high temperature in my LG LS-K1860YL Air Conditioner?
    • D
      Diana JonesSep 1, 2025
      If your LG Air Conditioner has higher suction pressure and high temperature, this could be caused by a defective compressor or a defective 4-way reverse valve. The current is low.

Summary

Functions

Indoor Unit Functions

Details on indoor unit operations like fan speed, modes, and controls.

Outdoor Unit Functions

Explains outdoor unit operations including controls, protection, and motor speed.

Remote Controller

Remote Control Operations

Explains various remote control functions like ON/OFF, mode selection, and timers.

Product Specifications

Cooling and Heating Specifications

Provides technical data for cooling and heating capacities, power, and dimensions.

Dimensions

Indoor Unit Dimensions

Detailed measurements and piping hole locations for indoor units.

Outdoor Unit Dimensions

Detailed measurements for outdoor unit dimensions, including L1 to L10.

Refrigeration Cycle Diagram

Refrigerant Flow and Pipe Sizing

Illustrates the refrigerant flow and specifies pipe sizes and lengths.

Wiring Diagram

Indoor Unit Wiring Diagrams

Wiring diagrams for LS-_NL, LS-_NM/NN, and LS-K18612L indoor units.

Outdoor Unit Wiring Diagrams

Wiring diagrams for outdoor units corresponding to indoor models.

Operation Details

Indoor Unit LED Indicators

Explains the meaning of LED indicators on the indoor unit during operation.

Power Display Operation

Details how the power display indicates compressor operating frequency levels.

Operational Protection Features

Covers protection against frosting, droplet formation, and fan operation.

Cooling Mode Operation

Describes the operation of cooling mode, including compressor frequency.

Dehumidification & Heating Modes

Details healthy dehumidification and heating mode operations.

Fuzzy Mode Operation

Explains fuzzy logic for cooling, heating, and dehumidification modes.

Jet Cool & Swing Modes

Details jet cool and chaos swing modes for airflow direction control.

Sleep Timer & Auto Restart

Explains sleep timer functions and auto restarting operation after power failure.

Forced Operation

Describes how to operate the unit manually when the remote is lost.

Protection Mechanisms

Current & Overheating Protection

Details protection against total current, DC peak current, and overheating.

Defrosting Control

Explains the defrosting process in heating mode to prevent freezing.

Installation

Location Selection & Piping Specs

Guidelines for selecting installation locations and piping requirements.

Plate Mounting & Hole Drilling

Steps for mounting the installation plate and drilling wall holes for piping.

Piping & Connection

Flaring Work Procedures

Procedures for correct flaring work and pipe connection.

Indoor Unit Piping Connection

Steps for connecting piping, drain hose, and cable to the indoor unit.

Outdoor Unit Piping Connection

Steps for connecting piping and drain hose to the outdoor unit.

Cable Connection

Indoor & Outdoor Cable Connection

Instructions for connecting the electrical cables between indoor and outdoor units.

Drainage and Refrigerant Handling

Drainage & Piping Formation

Covers checking drainage, forming piping, and drain piping methods.

Air Purging & Evacuation

Procedures for air purging, leak testing, evacuation, and refrigerant charging.

Test Running & Pump Down

Test Running Procedures

Steps for checking performance, refrigerant charge, and air temperature differences.

Pump Down Procedure

How to collect all refrigerant in the outdoor unit for servicing.

Troubleshooting

Cycle Troubleshooting Guide

Guides for analyzing temperature differences and refrigerant pressures.

Self-Diagnosis Function

Explains error codes and malfunction indicators for indoor and outdoor units.

Service Precautions & Diagnosis

Precautionary measures and general diagnosis steps before servicing.

Electronic Parts Troubleshooting

Troubleshooting steps for specific electronic parts and circuit issues.

PCB & Schematic Diagrams

Diagrams of main, outdoor, sub PCBs, and schematic diagrams for various models.

Exploded View and Parts List

Indoor Unit Parts List

Illustrated breakdown of indoor unit parts with part numbers.

Outdoor Unit Parts List

Illustrated breakdown of outdoor unit parts with part numbers.

LG LS-K1860YL Specifications

General IconGeneral
BrandLG
ModelLS-K1860YL
CategoryAir Conditioner
LanguageEnglish

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