Official Haier window air conditioner parts

Replacing the electronic control board in your Haier window air conditioner

• Unplug the power cord from the wall outlet to disconnect electrical power.
• Grasp the sides of the front grille panel at the top and pull the front grille panel out and off of the air conditioner. Pull out the air filter.
• Remove the screws from the sides and bottom of the control panel. Pull the control panel up and hold it above the air conditioner while you unplug the wire harness connection for the user interface control board. Remove the control panel
• Remove the screws from the electronic control board case. Pull the cover of the electronic control board case out to expose the electronic control board. Pull all wires off of the electronic control board. Remove the mounting screws that hold the electronic control board in the case and pull out the electronic control board.
• Position the new electronic control board in the case and reinstall the mounting screws. Connect the electronic control board wires. Position the cover of the electronic control board case and reinstall the screws.
• Reinstall the control panel, front grille panel and air filter.
• Plug the air conditioner into the electrical outlet to restore power.

What prevents your Haier window air from cooling even though it's running

If the window air conditioner's compressor and fans are running but the air conditioner isn't cooling, possible causes include a failed compressor or the 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 defective electronic control board or control thermostat could prevent the window air conditioner from cooling.