An air conditioner requires regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases.


The most important maintenance task that will ensure the efficiency of your air conditioner is to routinely replace or clean its filters. Clogged, dirty filters block normal air flow and reduce a system’s efficiency significantly. Most people recommend changing your air filter once a month during the hottest time of the year and every other month in cooler weather.

Condensation Line

One of the most frequent air conditioner maintenance problems is a clogged condensation line. Often, mold or bacterial growth clogs the line. To keep this line flowing freely, pour a 1:9 mixture of household bleach and water through the line every month or so during the cooling season. The condensation line is found on the inside part of your air conditioning unit.

Other A/C Maintenance Items

There are other types of maintenance items that should be performed on your A/C unit, but these should be done by a professional air conditioning service. NEVER open your air conditioning unit. Opening the unit can be hazardous and even fatal without the proper knowledge of the hazards. You may call any air conditioning service to have yearly maintenance done. Consult your owner’s manual supplied by your builder for more information.