Brand: Haier
Category: Aires Acondicionados
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for AS25THMHRA
Uploaded: Nov. 21, 2025, 7:56 p.m.
Warranty Information
Warranty information is detailed regarding the refrigerant used and general product specifications.
Operation Summary
This manual provides instructions for the Haier AS25THMHRA split type room air conditioner. It covers:
- Parts and Functions: Details of indoor and outdoor units, remote controller functions, and displays.
- Operation: Basic operation including starting the unit, selecting modes (Cool, Heat, Dry, Fan, Auto), setting temperature, fan speed, and air flow direction.
- Special Functions: Explains Sleep Operation, Power/Quiet Operation, Health Operation, Timer On/Off, and Healthy Airflow Operation.
- Self-Clean Operation: Instructions for cleaning the evaporator.
- Installation: Guidance on tools needed, selecting the installation place, and detailed steps for installing the indoor unit, including piping and electrical connections.
- Maintenance: Advice on smart use, cleaning the air filter, and replacing the air purifying filter.
- Cautions: Important safety warnings and precautions to follow during installation and operation.
- Troubleshooting: A table listing common phenomena, their causes, and troubleshooting steps, along with specifications and adaptive situations.
Troubleshooting and error codes
| Phenomenon | Cause or check points |
|---|---|
| The system does not restart immediately. | •When unit is stopped, it won't restart immediately until 3 minutes have elapsed to protect the system. •When the electric plug is pulled out and reinserted, the protection circuit will work for 3 minutes to protect the air conditioner. |
| Noise is heard | •During unit operation or at stop, a swishing or gurgling noise may be heard. At first 2-3 minutes after unit start, this noise is more noticeable. (This noise is generated by refrigerant flowing in the system.) •During unit operation, a cracking noise may be heard. This noise is generated by the casing expanding or shrinking because of temperature changes. •Should there be a big noise from air flow in unit operation, air filter may be too dirty. |
| Smells are generated. | •This is because the system circulates smells from the interior air such as the smell of furniture, paint, cigarettes. |
| Mist or steam are blown out. | •During COOL or DRY operation, indoor unit may blow out mist. This is due to the sudden cooling of indoor air. |
| In dry mode, fan speed can't be changed. | •In DRY mode, when room temperature becomes lower than temp. setting+2 °C, unit will run intermittently at LOW speed regardless of FAN setting. |
| Poor cooling | •Is power plug inserted? •Is there a power failure? •Is fuse blownout? •Is the air filter dirty? Normally it should be cleaned every 15 days. •Are there any obstacles before inlet and outlet? •Is temperature set correctly? •Are there some doors or windows left open? •Is there any direct sunlight through the window during the cooling operation?(Use curtain) •Are there too much heat sources or too many people in the room during cooling operation? |