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LG LS-K1820CL - User Manual

LG LS-K1820CL
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Room Air Conditioner
SERVICE MANUAL
MODEL : LS-K1820CL/CM/CN/HL/HM/HN
LS-K1822CL/CM/CN/HL/HM/HN
LS-K1860CL/CM/CN/HL/HM/HN
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Questions and Answers

  • J
    Julie BatesAug 2, 2025
    Why does my LG LS-K1820CL Air Conditioner have high suction pressure and temperature?
    • L
      Lori RodriguezAug 2, 2025
      If your LG Air Conditioner shows high suction pressure and temperature, this could be caused by a defective compressor or a defective 4-way reverse valve. In this situation, the current is low.
  • K
    knightrussellAug 12, 2025
    Why does my LG LS-K1820CL Air Conditioner have normal suction pressure and temperature, but high pressure does not quickly rise?
    • J
      judy34Aug 12, 2025
      If your LG Air Conditioner has normal suction pressure and temperature but the high pressure does not quickly rise at the beginning of operation, it could be due to an excessive amount of refrigerant.
  • V
    Vanessa BellAug 20, 2025
    Why is the current low in my LG Air Conditioner?
    • R
      rebeccalarsonAug 21, 2025
      If the current is low in your LG Air Conditioner due to a defective compressor or a defective 4-way reverse valve, you should check the refrigeration cycle.

Summary

Product Specifications

Dimensions

(2) Outdoor Unit

Details the physical dimensions of the outdoor unit, including various length measurements.

Wiring Diagram

(1) Indoor Unit

Provides wiring diagrams for the indoor unit of various LG air conditioner models.

(2) LS-K1820;1860;1861;1865;2420;2460;2621;2661 HL;HM;HN

Specific indoor unit wiring diagrams for a range of LG models.

(3) LS-K1822;1862;2422;2662 CL;CM;CN

Specific indoor unit wiring diagrams for a range of LG models.

(4) LS-K1822;1862;1866;2422;2462;2662 HL;HM;HN

Specific indoor unit wiring diagrams for a range of LG models.

Operation Details

1. MAIN UNIT FUNCTION

Explains the main functions and operations of the air conditioning unit.

Installation

1. Installation of Indoor, Outdoor unit

Step-by-step guide for installing the indoor and outdoor units of the air conditioner.

Air Purging

Evacuation

Gas Charging

Cycle Troubleshooting Guide

Electronic Parts Troubleshooting Guide

Electronic Control Device

Schematic Diagram

Exploded View & Replacement Parts List

LG LS-K1820CL Specifications

General IconGeneral
RefrigerantR410A
Star Rating3 Star
TypeSplit Air Conditioner
Power Supply220-240V, 50Hz
Operating Temperature (Cooling)18 ~ 48 °C
Operating Temperature (Heating)-5 ~ 24 °C

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