Haier HSU-18LEK03-Y2 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-18LEK03-Y2

Installation Manual4 pages

Questions and Answers:

M
Mary LoganAug 8, 2025
Why is my Haier Air Conditioner cooling poorly?
- N
  Nancy SmithAug 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.
S
Sarah MartinezAug 13, 2025
Why is my Haier Air Conditioner making noise?
- C
  courtneyramirezAug 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.
R
Richard HuffAug 20, 2025
Why won't my Haier Air Conditioner restart immediately?
- C
  christophermooreAug 20, 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.
T
Tammy LewisAug 26, 2025
Why does my Haier HSU-18LEK03-Y2 Air Conditioner generate smells?
- J
  Jacqueline GonzalezAug 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.
J
Joseph MannAug 31, 2025
Why can’t I change the fan speed in dry mode on my Haier HSU-18LEK03-Y2?
- A
  andersonvictorAug 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-18LEK03-Y2 Specifications

General

Brand	Haier
Model	HSU-18LEK03-Y2
Category	Air Conditioner
Language	English

Summary

Parts and Functions Overview

Indoor Unit Components

Identifies and describes parts of the indoor air conditioner unit.

Remote Controller Functions

Explains the buttons and display of the remote control.

Outdoor Unit Components

Identifies key parts of the outdoor air conditioner unit.

Clock and Battery Setup

Guides on setting the clock and loading batteries into the remote.

Operation Modes

Basic Operation Control

Covers starting, stopping, and basic modes like Auto, Cool, Dry, Fan, Heat.

Air Flow Direction Adjustment

Details how to adjust the air flow direction of the unit.

Advanced Operation Features

Health Operation Mode

Explains the health function for air purification and ion generation.

Timer Operation Settings

Guides on setting the timer for automatic start and stop operations.

Emergency and Test Operations

Describes how to use emergency switch and perform test operations.

Sleep and Power Functions

Comfortable Sleep Mode Operation

Explains how to use the sleep mode for comfortable temperature control.

Power Failure Resume Function

Details the unit's behavior after a power interruption and how to manage it.

Maintenance and Care Guide

Cleaning Remote and Indoor Units

Provides instructions for cleaning the remote control and the indoor unit body.

Filter Cleaning and Replacement

Guides on cleaning and replacing air filters for optimal performance.

Safety Cautions and Warnings

General Safety Warnings

Highlights critical warnings for installation, electrical safety, and abnormal conditions.

Specific Usage Cautions

Lists cautions for proper installation, usage, and placement of the unit.

Troubleshooting Common Issues

Normal Performance Checks

Addresses common phenomena like delayed restart, noises, smells, and mist.

Multiple Issue Checks

Covers checks for poor cooling, fan speed issues, and other operational problems.

Ambient Temperature Guidelines

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