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Air conditioners are outfitted with a simple electrostatic filter in the front grill area to filter the air that passes through them. If your unit has a filter you should replace/clean it once a month during the cooling season. You can purchase "Electrostatic filter cut-to-fit" material from our site.
If the temperature outside the room where the air conditioner is placed becomes cool, approximately 60 degrees Fahrenheit or lower, check the coils on the front of the air conditioner to be sure they are not icing up. If they are icing up, turn the air conditioner off until the temperature rises. Also, make sure the filter is clean.
Air conditioners have a cooling system identical to a refrigerator's. It is important not to turn the unit off and then back on right away. Wait at least ten minutes after shutting the unit off to allow the pressure in the refrigeration system to equalize once again. This will prolong the life of your air conditioner.
Mice and other small animals love to nest in air conditioners. If they do they can cause serious damage to the unit by chewing on wiring and insulation. Also, wasps and birds like to nest in uncovered units left in windows. Avoid these problems by storing the units in a protected area, away from small animals, or by installing a cover on the part of the air conditioner that sticks outside.
The condensing coils on an air conditioner will get very dirty over time. However, the dirt tends to accumulate on the inside of the coils, out of site. It will be necessary to remove the entire cover of the air conditioner to gain access to the coils. They can be cleaned by blowing compressed air at them or by using a soft bristle brush to wipe the dirt off. It is important to also clean any dirt or lint build-up in the bottom of the air conditioner so the condensate water will be picked up by the condensing fan slinger properly.
