How to Maintain your Central Air Conditioner

The central air conditioner is an expensive home appliance, and one that will be missed if it breaks down in the midst of the summer heat. To expand the life of your air conditioner and to improve its performance, and prevent costly repairs, perform regular maintenance and inspect the appliance.

Difficulty: Moderate

Instructions

1. 

   Replace the air filters on a regular basis, approximately once a month. The opening that holds the filters typically opens by unscrewing several screws, and swinging the door open. The filter slips out, and a new filter can be inserted. Measure the opening and purchase filters that are an exact fit. Insert them according to the arrows on the filter.

2. Disconnect the power to the air conditioner before working on any of the appliance's parts, such as the fan.

3. Check the fan if the air conditioner is making noise. Debris that gets into the area can get caught on a blade and cause it to bend. When this happens the appliance does not work efficiently and can result in expensive repairs. Fix or replace the blade.

4. Clean the outside of the air conditioner, so that dirt and leaves do not cling to the outer fins of the machine.

5. Straighten any fins that have been bent. When the fins are bent it can restrict the air flow. Fin combs can be purchased at the home supply store.

6. Check the unit to make sure it is level. Over time the movement of the air conditioner can un-level the appliance, thus causing it to run less efficiently. Adjust the mounting if it is not level

7. Lubricate the fan motor as necessary. In some models you will need to remove the fans to do this. Don't forget to first turn the power off.