Haier HSU-18HEG03 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-18HEG03

Installation Manual4 pages

Questions and Answers:

C
Carol WhiteAug 8, 2025
Why is my Haier HSU-18HEG03 cooling poorly?
- E
  Elizabeth NelsonAug 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.
G
Grant GarciaAug 13, 2025
Why is my Haier HSU-18HEG03 making noise?
- D
  Dale BauerAug 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
raysaraAug 19, 2025
Why won't my Haier HSU-18HEG03 restart immediately?
- K
  Kristen RobinsonAug 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
Joshua SmithAug 25, 2025
Why does my Haier HSU-18HEG03 Air Conditioner generate smells?
- J
  Joyce CunninghamAug 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.
A
Austin WilliamsSep 1, 2025
Why can’t I change the fan speed in dry mode on my Haier Air Conditioner?
- D
  Dawn RussellSep 1, 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-18HEG03 Specifications

General

Brand	Haier
Model	HSU-18HEG03
Category	Air Conditioner
Language	English

Summary

Parts and Functions

Indoor Unit Components

Details and identification of various parts of the indoor air conditioner unit.

Remote Controller Components

Identification and explanation of buttons and displays on the remote controller.

Outdoor Unit Components

Identification of key components of the outdoor unit.

Setting the Clock

Procedure for setting the current time on the remote controller.

Battery Installation

Instructions for loading batteries into the remote controller.

Operation Modes

Unit Start and Stop

Instructions on how to start and stop the air conditioner unit.

Auto Operation Mode

Explanation of the automatic operation mode based on room temperature.

Cool Operation Mode

Details and usage of the cooling operation mode.

Dry Operation Mode

Details and usage of the dry operation mode for dehumidification.

Fan Operation Mode

Details and usage of the fan-only operation mode.

Heat Operation Mode

Details and usage of the heating operation mode.

Air Flow Direction Control

Instructions on adjusting the direction of the air flow.

Advanced Operation Features

Health Function Operation

Explanation of the health function and its benefits.

Timer Operation Setup

Guide to setting up automatic timer start and stop operations.

Emergency and Test Operations

Procedures for using emergency or test operation modes.

Sleep and Power Management

Sleep Mode Operation

How to activate and use the sleep mode for comfortable rest.

Sleep Mode by Operation Type

Behavior of sleep mode in different operation modes (Cool, Dry, Heat, Auto).

Power Failure Resume

How the unit behaves and resumes operation after a power interruption.

Maintenance Tips

General Maintenance Practices

Tips for proper room temperature, airflow, and unit care.

Cleaning Procedures

Instructions on cleaning the remote controller and indoor unit.

Air Filter Maintenance

Steps for cleaning and replacing air filters.

Safety Cautions

Installation Warnings

Safety warnings regarding the installation of the air conditioner.

Electrical Safety

Precautions related to power supply, cords, and earthing.

Operational Prohibitions

Actions strictly prohibited during operation and use.

Troubleshooting Guide

Normal Performance Checks

Common phenomena and their causes during normal operation.

Multiple Checkpoints

Checks for multiple potential issues like poor cooling.

Applicable Ambient Temperature

Ranges for indoor and outdoor temperatures for operation.

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