Brand: Haier
Category: Aires Acondicionados
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for HPN12XHM
Uploaded: Nov. 21, 2025, 8:29 p.m.
Manual Publish Date: 2012-11-01
Warranty Information
Covers defects in workmanship or materials for 12 months on mechanical/electrical parts and 5 years on sealed system/compressor.
- Before Use: Ensure proper outlet (115V, 15Amp), avoid direct sunlight and heating appliances, operate on a flat surface, keep free of obstructions, and maintain at least 1 foot from walls.
- During Use: Unit starts in low fan cooling mode. Remembers last setting. Can operate as a dehumidifier. Wait 3 minutes after shutdown before restarting. Cooling mode typically does not require water removal; heating or high humidity may require emptying the tank. A 'Tank Full' light indicates the tank is full. Clean filter weekly.
- After Use: Drain water tank if not used for a long period.
Troubleshooting and error codes
| Problem | Possible Cause & Solution |
|---|---|
| If air conditioner does not operate: | Check if unit is plugged in. |
| Press "Reset" button on the plug. | |
| Check if the electrical wall receptacle is the proper voltage. | |
| Check if the circuit breaker needs to be reset or if the fuse needs to be replaced. | |
| Check if the unit is in "Off" mode. | |
| If the "Tank Full" warning light is on, drain the water. | |
| Air conditioner working but room not cooling: | Room may have appliances that produce heat. Use an exhaust fan. |
| Check exhaust hose for proper installation. | |
| Redirect the airflow. Remove any obstacles. | |
| Close all doors and windows. | |
| Air filter may be blocked or may need cleaning. | |
| Unit BTU may be too low for the room. | |
| On extremely hot & humid days, it may take longer to cool. | |
| Unit may be in fan or dry mode. Select "Cool" mode. | |
| Tank Full Warning Light Is On: | Unit shuts down when the water pan is full. This can occur in high humidity or HEAT MODE. See "Operation" section under "During use" for draining instructions. |