LG LK-1080HH - User Manual

Questions and Answers

T
Tyler SimmonsAug 4, 2025
What to do if my LG LK-1080HH Air Conditioner is working, but not cooling sufficiently?
- M
  Mr. Eric BrooksAug 4, 2025
  If your LG Air Conditioner is running but not providing enough cooling or heating, several factors could be responsible. Check for any obstructions or loads that may be impacting performance and ensure proper airflow. Correct any issues with short air volume and recharge the refrigerant, repairing any leaks. Also, clear any blockages in the air passage or air filter and clean any dust accumulation.
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Kimberly CastroAug 8, 2025
Why does my LG Air Conditioner stop after starting?
- S
  Stephen HamiltonAug 8, 2025
  If your LG Air Conditioner discontinues operation after starting, it could be due to several reasons. The outdoor coil may need cleaning with a chemical wash. There might be in-condensable gas mixed in, requiring air extraction by a vacuum pump and refrigerant replenishment. The high-pressure switch might need readjustment. A refrigerant leak needs fixing and replenishment. Lastly, check if the outdoor fan is reversed, and if so, interchange the wires to the correct terminals.
G
graveslisaAug 13, 2025
What to do if only the compressor of my LG LK-1080HH Air Conditioner does not work?
- M
  michele91Aug 13, 2025
  If only the compressor in your LG Air Conditioner isn't working, the magnetic switch for the compressor motor may need repair or replacement. Alternatively, the compressor motor itself may need repair or replacement. If equipped, the high-pressure switch might need replacement. Finally, check the electric circuit, rewiring if necessary or pushing the reset button.
G
Gail GordonAug 17, 2025
What to do if my LG Air Conditioner is very noisy and vibrant?
- D
  Dr. Leslie BowersAug 17, 2025
  If your LG Air Conditioner functions as expected but is excessively noisy and vibrant, consider these potential causes: * The compressor may need replacement. * The blower may require repair or replacement, and any foreign objects should be removed. * Screws may need tightening. * Electrical issues, such as a faulty magnetic contactor, may need repair, cleaning, or replacement. * Other miscellaneous issues may need correction.
A
April SuttonAug 21, 2025
What to do if both the blower and the compressor of my LG Air Conditioner do not work?
- R
  Rebecca EvansAug 21, 2025
  If both the blower and compressor in your LG Air Conditioner aren't working, possible causes include an interruption in the electrical supply or defective power wiring, requiring repair of the switch box and related instruments. A blown fuse necessitates replacement. Too low voltage requires checking the power source and potentially using a thicker cable. A faulty magnetic switch for the compressor and fan motor needs replacement, and a defective operating switch needs repair or replacement.
F
fcarterAug 25, 2025
How to fix an LG Air Conditioner when only the indoor blower is not working?
- R
  Robin CarterAug 26, 2025
  If only the indoor blower of your LG Air Conditioner is not working, the issue may stem from the motor, which would require repair or replacement. Alternatively, the electric wiring may be faulty, necessitating rewiring or repair.
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Kelly GriffinAug 29, 2025
What to do if only the outdoor fan of my LG LK-1080HH Air Conditioner is not working?
- L
  Lauren ArmstrongAug 29, 2025
  If only the outdoor fan of your LG Air Conditioner is not working, the issue could be with the motor, requiring repair or replacement. Alternatively, the electric wiring may be faulty, necessitating rewiring or repair. A defective capacitor may also be the cause, requiring replacement.

Summary

Model Number Nomenclature

Model Number Nomenclature Details

Explanation and diagram detailing the model number structure.

General Data

Cooling Only Models Specs (Table-1)

Specifications for LK-0580CC, LK-0880CH, LK-1080CH cooling only models.

Cooling Only Models Specs (Table-2)

Specifications for LK-1580CH, LK-2080CH cooling only models.

Heat-Pump Models Specs (Table-3)

Specifications for LK-0580HC, LK-0880HH, LK-1080HH, LK-1580HH heat-pump models.

Performance Data

Performance Data: LK-0580 HC;0580 CC

Fan performance in SI and English units for specific models.

Performance Data: LK-0880 HH;0880 CH

Fan performance and speed data for LK-0880HH/CH in SI and English.

Performance Data: LK-1080 HH;1080 CH

Fan performance and speed data for LK-1080HH/CH in English and SI.

Performance Data: LK-1580 CH;1580 HH

Fan performance and speed data for LK-1580CH/HH in English and SI.

Performance Data: LK-2080 CH

Fan performance and speed data for LK-2080CH in English and SI.

Accessory Static Pressure Drops

Accessory Static Pressure Drops (Table-15)

Pressure drop data for filters and electric heaters.

Electric Heating Capacity

Electric Heating Capacity (Table-16)

Heating capacity details by stage and input for various models.

Air Temperature Rise Across Electric Heater

Air Temperature Rise Across Electric Heater (Table-17)

Temperature rise across electric heaters for different kW ratings.

Electrical Requirements

Unit Wiring Electrical Data (Table-18)

Electrical data for unit wiring, including motor M.C.A. and M.C.B.

Unit Wiring with Electric Heater (Table-19)

Electrical data for unit wiring when equipped with electric heater.

Electrical Characteristics

Evaporator Fan Motor Specs (Table-20)

Electrical characteristics of the evaporator fan motor for 50 Hz.

Compressor & Outdoor Fan Motor Specs (Table-21)

Electrical characteristics for compressor and outdoor fan motor for 50 Hz.

Dimensions

Dimensions: LK-0580 CC;0580 HC

Physical dimensions and clearance requirements for specific models.

Dimensions: LK-0880 CH;0880 HH

Physical dimensions and clearance requirements for specific models.

Dimensions: LK-1080 CH;1080 HH

Physical dimensions and clearance requirements for specific models.

Dimensions: LK-1580 CH;1580 HH

Physical dimensions and clearance requirements for specific models.

Dimensions: LK-2080 CH

Physical dimensions and clearance requirements for specific models.

Weights

Unit & Corner Weights, Center of Gravity

Weight data and center of gravity dimensions for various models.

Wiring Diagram

Wiring Diagram: LK-0580 HC

Electrical schematic for the LK-0580HC model.

Wiring Diagram: LK-0580 CC

Electrical schematic for the LK-0580CC model.

Wiring Diagram: LK-0880 HH

Electrical schematic for the LK-0880HH model.

Wiring Diagram: LK-0880 CH

Electrical schematic for the LK-0880CH model.

Wiring Diagram: LK-1080 HH

Electrical schematic for the LK-1080HH model.

Wiring Diagram: LK-1080 CH

Electrical schematic for the LK-1080CH model.

Wiring Diagram: LK-1580 HH

Electrical schematic for the LK-1580HH model.

Wiring Diagram: LK-1580 CH

Electrical schematic for the LK-1580CH model.

Wiring Diagram: LK-2080 CH

Electrical schematic for the LK-2080CH model.

Troubleshooting Guide

Voltage Limits

Specifies operating voltage ranges for the unit.

Unit Operation Troubleshooting

Diagnosing issues when cooling/heating and blower do not work.

Fan and Compressor Troubleshooting

Diagnosing issues with outdoor fan or compressor operation.

Unit Interruption Troubleshooting

Troubleshooting when the unit stops during operation.

Performance and Noise Troubleshooting

Troubleshooting insufficient cooling/heating and noise issues.

Electronic Parts Troubleshooting Guide

Unit Not Operating Troubleshooting

Troubleshooting steps for when the unit does not operate.

Remote Controller Not Operating Troubleshooting

Troubleshooting steps for when the remote controller is unresponsive.

Remote Controller LCD Troubleshooting

Troubleshooting steps for remote controller display errors.

Cooling Operation Failure Troubleshooting

Troubleshooting steps for when no cooling operation occurs.

Heater Operation Failure Troubleshooting

Troubleshooting steps for when no heater operation occurs.

Humidifier Operation Failure Troubleshooting

Troubleshooting steps for when the humidifier does not operate.

Motor Operation Failure Troubleshooting

Troubleshooting steps for when indoor or outdoor motors fail.

Heating Operation Failure Troubleshooting

Troubleshooting steps for when heating operation is not performed.

Heater Operation Failure Troubleshooting

Troubleshooting steps for when heater operation is not performed.

Features of Controller

Main Controller Circuit Diagram

Detailed circuit diagram of the main controller board.

Main Controller Component Layout

Diagram showing component placement on the main controller.

Remote Controller PCB Layout

Diagram of the remote controller's printed circuit board.

Remote Controller LCD Display

Explanation of remote controller LCD screen symbols and functions.

Error Mode & Corrective Method

Error Codes and Corresponding Remedies

Lists common error codes and their corrective actions.

Controller Component Lists

Main PCB Assembly Parts List

Lists major parts for the main PCB assembly.

Remote Controller Parts List

Lists major parts for the remote controller.

Explanation of Principal Function