Haier Room air conditioner Parts — Browse All Models

How to fix your Haier window air conditioner when it's running but not cooling

If your Haier window air conditioner's compressor and fans are running but the air conditioner isn't cooling, possible causes include a failed compressor or a lack of refrigerant due to a leak in the sealed system. If the compressor isn't running but the fans work, the start relay or compressor might have failed. A bad start capacitor can also prevent the compressor from running. A defective electronic control board or control thermostat could prevent the window air conditioner from cooling. Damaged or disconnected wires can also prevent the air conditioner from cooling. Unplug the air conditioner and check the wiring connections. Reconnect any loose wires and repair any damaged wires. If wiring is okay, it’s likely you need to have a service technician diagnose and repair the air conditioner.

What to do when your Haier room air conditioner leaks inside your house

If water is leaking into the room from your Haier window air conditioner, adjust the air conditioner so the back of the unit is slightly lower than the front, so the condensate water drains outdoors. Level the air conditioner according to the guidelines in the installation manual. The air conditioner can also leak into the room if gaps around the window let warm, moist into the room, where it can condense on the front of the air conditioner. Seal air leaks in the cabinet or around the window opening.