Haier HSU-12LTZ/012YL(W) User Manual

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Table of Contents

Questions and Answers:

T
Tammy OwensAug 9, 2025
Why is my Haier HSU-12LTZ/012YL(W) not cooling properly?
- D
  dsanchezAug 10, 2025
  Poor cooling in your Haier Air Conditioner can stem from several factors. First, ensure the air filter is clean. Obstacles blocking the inlet and outlet can also hinder performance, so clear them away. Verify that the temperature is set correctly and that all doors and windows are closed. Direct sunlight can impact cooling efficiency, so use curtains to block it. Finally, consider reducing heat sources or the number of people in the room.
C
Charlene HeathAug 15, 2025
What to do if my Haier HSU-12LTZ/012YL(W) does not work at all?
- H
  hansenjosephAug 15, 2025
  If your Haier Air Conditioner isn't working, start by checking if the power plug is properly inserted. Then, check to see if there is a power failure in your location. Finally, inspect the fuse to ensure it hasn't blown out.
J
Jacob WarrenAug 21, 2025
Why is my Haier HSU-12LTZ/012YL(W) Air Conditioner making noise?
- L
  Lisa RomeroAug 22, 2025
  A swishing or gurgling noise from your Haier Air Conditioner during operation or after stopping is normal, caused by refrigerant flow, especially noticeable in the first few minutes after starting. A cracking noise during operation can be due to the casing expanding or shrinking with temperature changes. However, a big noise from airflow may indicate a dirty air filter, which should be cleaned or inspected.
T
Todd ZunigaAug 27, 2025
Why does my Haier HSU-12LTZ/012YL(W) Air Conditioner not restart immediately?
- K
  kendraadamsAug 27, 2025
  When your Haier Air Conditioner is stopped, it won't restart immediately for about 3 minutes. This is a protection mechanism. If you unplug and re-plug the unit, this protection circuit activates for 3 minutes to safeguard the air conditioner.
K
Kathy ColemanSep 2, 2025
Why does my Haier HSU-12LTZ/012YL(W) Air Conditioner generate smells?
- F
  fjohnsonSep 2, 2025
  If your Haier Air Conditioner is generating smells, it's likely circulating odors from the room, such as those from furniture or cigarettes. You should investigate the source of these smells.

Haier HSU-12LTZ/012YL(W) Specifications

General

Brand	Haier
Model	HSU-12LTZ/012YL(W)
Category	Air Conditioner
Language	English

Summary

Cautions

Safety Instructions and Warnings

Read manual carefully before use and retain for future reference.

Specification

Model Specifications

Details technical specifications for various Haier air conditioner models.

Operation

Remote Controller Overview

Explains buttons and display of the remote controller for operation.

Operation (Cont.)

Remote Controller Operation Details

Describes remote controller functions like operation, timer, and clock settings.

Auto Operation Modes and Fan Speed

Cooling, Heating, Dry Modes, and Temperature Settings

Air Flow Direction Control and Hints

Unit Stop and Timer Operation

Timer Confirmation and Airflow Position

Operation (Cont.)

Emergency and Test Operation

Explains how to operate the unit in emergency or test modes.

Installation

Installation Place and Power Source Selection

Guidelines for choosing an installation place and connecting the power source.

Installation (Cont.)

Piping Selection and Necessary Tools

Electrical Cable Connection Procedures

Pipe Connection and Purging Process

Piping Work, Drainage, and Power Source Installation

Trouble Shooting

Performance Checks and Common Issues

Guidance on troubleshooting common operational problems and their causes.

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