LG AUUQ18GH2 - User Manual

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CEILING CONCEALED DUCT

Please read this manual carefully before operating

your set and retain it for future reference.

OWNER’S MANUAL

AIR

CONDITIONER

MFL67902906

Rev.00_041619

www.lg.com

Copyright © 2014 - 2019 LG Electronics Inc. All Rights Reserved.

ENGLISH ESPAÑOL

PORTUGUÊS

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Installation Manual26 pages

Questions and Answers:

L
logan20Aug 7, 2025
Why is my LG AUUQ18GH2 not cooling or heating effectively?
- C
  Crystal RobertsAug 7, 2025
  Your LG Air Conditioner might not be cooling or heating effectively due to several reasons. The air filter could be dirty - check the air filter cleaning instructions. If the room was very hot when you first turned on the air conditioner, allow time for it to cool down. Verify that the temperature has been set correctly. Also, make sure that the indoor unit's air inlet or outlet vents are not obstructed.
R
Robert RobinsonAug 11, 2025
How to fix an LG AUUQ18GH2 that does not operate?
- C
  Carmen HartmanAug 11, 2025
  If your LG Air Conditioner isn't operating, first check the timer settings to ensure there isn't a mistake in the timer operation. Also, check the fuse or circuit breaker to see if it has blown or been tripped.
C
Christy RayAug 15, 2025
Why is my LG AUUQ18GH2 Air Conditioner operation so noisy?
- D
  David BennettAug 15, 2025
  If your LG Air Conditioner operation is noisy, and you hear a sound like water flowing, this is normal. It's the sound of freon flowing inside the unit. If you hear a noise that sounds like compressed air releasing, this is also normal, and it's the sound of the dehumidifying water being processed inside the unit.
J
Jimmy HoAug 20, 2025
What to do if my LG Air Conditioner remote control display is faint?
- L
  Lori HensonAug 20, 2025
  If the remote control display for your LG Air Conditioner is faint or has no display, check the batteries. Replace them if they are depleted. Also, ensure that the batteries are inserted in the correct orientation, matching the (+) and (-) directions.
D
dhawkinsAug 25, 2025
How to turn off the filter sign on my LG AUUQ18GH2?
- J
  Jason AndersonAug 25, 2025
  To turn off the filter sign lamp (LED) on your LG Air Conditioner, clean the filter, then press the Timer button and the ? button on the wired remote controller at the same time for 3 seconds.
E
Elizabeth DavisAug 28, 2025
Why LG Air Conditioner does not operate for about 3 minutes when restart?
- K
  Kristen McclureAug 28, 2025
  If your LG Air Conditioner does not operate for about 3 minutes after restarting, this is normal. It is due to the protector of the mechanism. Wait about three minutes, and the operation will begin.
D
Destiny SuttonSep 2, 2025
What is the reason for crack sound from LG Air Conditioner?
- R
  Rebecca MorganSep 2, 2025
  The crack sound you hear is generated by the expansion or constriction of the front panel due to changes in temperature.

LG AUUQ18GH2 Specifications

General

Noise Level (Outdoor)	50 dB
Type	Split AC
Cooling Capacity	5275 W
Heating Capacity	5570 W
Power Supply	220-240 V, 50 Hz

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