Haier HSU-18LK2W3 User Manual

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Please read this operation manual before using the air conditioner.

Keep this operation manual for future reference.

SPLIT TYPE ROOM AIR CONDITIONER

OPERATION MANUAL

0010518786

Contents

1

2-4

5

7

6.7

CAUTIONS

PARTS AND FUNCTIONS

OPERATION

MAINTENANCE

TROUBLE SHOOTING

HSU-09HEK03

HSU-09LEK03

HSU-12HEK03

HSU-12LEK03

HSU-09LEK13

HSU-12LEK13

HSU-07LEK03

HSU-07HEK03

HSU-18LEK13

HSU-24LEK13

HSU-12LEK13-M

HSU-18HEK03

HSU-24HEK03

HSU-18LK2S3

HSU-12LEK03-Y3

HSU-24LK2S3

HSU-18LEK03-Y3

HSU-24LEK03-Y2

HSU-09CK2S3

HSU-09LEK03-Y3

HSU-12CK2S3

HSU-09CK2W3

HSU-09CK6B3

HSU-12CK2W3

HSU-12CK6B3

HSU-18LK2W3

HSU-18LK6B3

SAS-09HEK3

SAS-12HEK3

SAS-18HEK3

SAS-24HEK3

HSU-12LEK03-Y5

HSU-09LEK03-Y5

HSU-12LH03

HSU-09LH03

HSU-18LEK03-Y5

HSU-18LH03

HSU-24LEK03-Y5

HSU-24LH03

HSU-12HH03

HSU-09HH03

HSU-18HH03

HSU-24HH03

HSU-12HEG03

HSU-09HEG03

HSU-18HEG03

HSU-24HEG03

HSU-12LEK03-Y6

HSU-18LEK03-Y6

HSU-12LEK03-Y2

HSU-24LEK03-Y3

HSU-09LEK03-Y2

HSU-18LEK03-Y2

YKS-18HEK03

YKS-24HEK03

HSU-18LEK03

HSU-24LEK03-Y6

HSU-12LEK03-Y4

HSU-18LEK03-Y4

HSU-24LEK03-Y4

HSU-09LEK03-Y4

HSU-09LEK03-Y6

HSU-18LK2W3

HSU-18LK6B2

HSU-24LK2S2

HSU-12CK6B2

HSU-24LEK03

HSU-18LEK03EK1

HSU-26HEK03

Table of Contents

Other manuals for Haier HSU-18LK2W3

Installation Manual4 pages

Questions and Answers:

G
Gregg KingAug 7, 2025
Why is my Haier HSU-18LK2W3 cooling poorly?
- D
  Diane DelgadoAug 8, 2025
  Poor cooling in your Haier Air Conditioner can stem from several factors. First, check if the air filter is dirty and clean it, ideally every 15 days. Ensure there are no obstructions blocking the air inlet or outlet. Verify that the temperature is set correctly and that all doors and windows are closed tightly. Direct sunlight can also impact cooling efficiency, so use curtains to block it. Finally, consider if there are excessive heat sources or too many people in the room.
J
joshua89Aug 13, 2025
Why is my Haier HSU-18LK2W3 making noise?
- D
  Dana WrightAug 13, 2025
  The swishing or gurgling noise you hear in your Haier Air Conditioner is typically refrigerant flowing through the system. You might notice it more within the first few minutes after starting the unit. Also, cracking noises can occur as the unit's casing expands or shrinks due to temperature fluctuations. If you notice a big noise from air flow, the air filter may be too dirty.
J
Joe WagnerAug 19, 2025
Why won't my Haier Air Conditioner restart immediately?
- J
  Jacob JacobsAug 19, 2025
  If your Haier Air Conditioner doesn't restart immediately after being stopped, it's due to a built-in protection mechanism. The system requires a 3-minute delay before restarting to safeguard the unit. If you unplug and re-plug the air conditioner, this protection circuit activates, preventing immediate restart for about 3 minutes.
J
jamespatrickAug 26, 2025
Why does my Haier HSU-18LK2W3 Air Conditioner generate smells?
- B
  Brandi JonesAug 26, 2025
  Smells from your Haier Air Conditioner can occur when the system circulates odors from the room, such as those from furniture, paint, or cigarettes.
T
tcarterAug 31, 2025
Why can’t I change the fan speed in dry mode on my Haier Air Conditioner?
- A
  ashleycohenAug 31, 2025
  In DRY mode, the fan speed of your Haier Air Conditioner cannot be changed because when the room temperature drops below the set temperature plus 2 degrees Celsius, the unit will run intermittently at low speed, regardless of the fan setting.

Haier HSU-18LK2W3 Specifications

General

Brand	Haier
Model	HSU-18LK2W3
Category	Air Conditioner
Language	English

Summary

Parts and Functions Overview

Indoor Unit Components

Identifies key parts of the indoor air conditioner unit.

Remote Controller Buttons and Displays

Explains the functions of various buttons and screen indicators on the remote.

Outdoor Unit Components

Details the external parts of the outdoor air conditioning unit.

Clock and Battery Setup

Guides on setting the clock and installing remote control batteries.

Operating the Air Conditioner

Unit Start/Stop and Modes

How to turn the unit on/off and use Auto, Cool, and Dry modes.

Advanced Operation Features

Covers Fan/Heat modes, air flow control, and HEALTH function.

Timer and Emergency Functions

Guides on setting timers and using emergency/test operations.

Sleep Mode Operation

Sleep Mode Functionality

Details how the unit adjusts temperature for comfortable sleep in different modes.

Power Failure Resume

Explains how the unit resumes operation after a power interruption.

Maintenance and Care

General Maintenance Tips

Advice on setting temperature, cleaning, and using the timer effectively.

Air Filter Replacement

Instructions for cleaning and replacing the air purifying filters.

Cautions and Warnings

Installation and Electrical Safety

Warnings regarding proper installation, power supply, and electrical safety.

Usage and Environmental Precautions

Cautions on usage, placement, and avoiding water contact.

Troubleshooting Guide

Normal Performance Checks

Common phenomena like no restart, noise, smells, or mist during operation.

Multiple Checkpoints

Troubleshooting steps for poor cooling and other operational issues.

Operating Condition Limits

Information on applicable ambient temperature ranges for operation.

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