Haier AS25THMHRA-CL - User Manual

Questions and Answers

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paulangelaAug 10, 2025
Why is my Haier AS25THMHRA-CL Air Conditioner cooling poorly?
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  David RiveraAug 10, 2025
  Poor cooling in your Haier Air Conditioner can stem from several factors. Check if the air filter is dirty and clean it, ideally every 15 days. Ensure there are no obstructions blocking the inlet and outlet. Verify that the temperature is set correctly. Also, make sure all doors and windows are closed. During cooling, use curtains to block direct sunlight. Finally, consider if there are too many heat sources or people in the room.
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pmanningAug 15, 2025
How to fix Haier AS25THMHRA-CL that does not restart immediately?
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  travistaylorAug 15, 2025
  When a Haier Air Conditioner is stopped, it won't restart immediately until 3 minutes have passed to protect the system. Also, when the electric plug is pulled out and reinserted, the protection circuit will work for 3 minutes.
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jason48Aug 21, 2025
Why does my Haier AS25THMHRA-CL Air Conditioner smell?
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  Kelly CookAug 21, 2025
  The smells from your Haier Air Conditioner are because the system circulates smells from the interior air. This could include odors from furniture, paint, or cigarettes.
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Tammy HartmanAug 27, 2025
Why is there noise coming from my Haier Air Conditioner?
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  Dylan SwansonAug 27, 2025
  If you hear a big noise from air flow when your Haier Air Conditioner is operating, the air filter may be too dirty. During operation or when stopping, swishing or gurgling noises may occur because of refrigerant flowing in the system. A cracking noise might be heard during operation as the casing expands or shrinks due to temperature changes.
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Wayne SandersSep 3, 2025
Why can’t I change the fan speed in dry mode on my Haier Air Conditioner?
- B
  Bradley HallSep 3, 2025
  When your Haier Air Conditioner is in DRY mode, if 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.

Summary

Parts and Functions Overview

Indoor and Outdoor Unit Components

Operation Basics

Base Operation and Controls

Covers starting, mode selection, temperature, and fan speed adjustments.

Timer, Airflow, and Regulations

Timer and Healthy Airflow Settings

European Regulations and Refrigerant

Compliance standards and important refrigerant safety information.

Indoor Unit Installation - Preparation

Tools, Power, and Location Selection

Lists required tools, power source needs, and criteria for choosing the installation site.

Indoor Unit Mounting and Wiring

Mounting Plate and Wall Hole Preparation

Piping and Cable Connections

Indoor Unit Installation - Piping and Testing

Piping Work and Cable Connections

Detailed steps for preparing pipes and connecting electrical wires.

Installation Checks and Test Run

Verification steps and how to perform a test run post-installation.

Cautions and Safety

Installation and Operation Warnings

Critical safety instructions for installation and operation to prevent hazards.

Prohibited Actions and Precautions

Troubleshooting and Specifications

Common Operational Problems

Haier AS25THMHRA-CL Specifications

General

Cooling Capacity	2.5 kW
Refrigerant	R32
Power Supply	220-240V, 50Hz
Coefficient of Performance (COP)	3.61
Type	Split System
Outdoor Unit Noise Level	50 dB(A)
Air Flow (Indoor Unit)	500 m³/h