Haier Mini Split. Maintaining a Central Air System.

Haier Mini Split. Central air. Check for noisy operation.

One of the easiest ways to begin maintaining a central air system is to simply listen. Periodically go outside and listen to your fan, and see if it seems to be operating too noisily. The most common cause for a noisy air conditioner fan is that one of the blades somehow became bent. When a fan blade gets bent, it throws the balance of the unit out of whack, and causes the motor to work much harder than it normally would need to.

Haier Mini Split Heat Pump. Clear intake fins and coil. 

Make sure that the area around the intake fins and coil are free of any dirt and debris. This area of your air conditioner will often attract such messes, and make it much more difficult for the unit to work properly. Use a brush, and a garden hose to remove this mess.

Haier Split Air Conditioner. Shut off power.

Before opening your air conditioner to do any interior maintenance, make sure that you shut off the power. The simplest way to do this to simply unplug the unit, but you can also disconnect the power at the junction box by throwing the breaker. Be sure that you leave a note saying not to turn the power back on, to ensure that no one accidentally does that.

Mini Split Air Conditioning. Remove fan assembly.

In order to repair a bent fan blade, or even to inspect the interior of the air conditioner, you will need to remove the fan assembly. Often times, this can be done by loosening the bolts that are found around the edge of the fan assembly, and setting them aside. Remember where you put them so you don't loose them. Once the assembly has been removed, clean out any dirt and debris that may have gotten inside the unit, as well as repairing any bent fan blades. It is always best to take a fan blade into the shop to have it fixed properly.