The efficiency of an air conditioner is dependent on proper maintenance of the unit. A unit that is clogged fails to produce the full amount of cold air needed to keep a room cool. Common household items such as baking soda and vinegar can be used to unclog and free up a drain that is clogged. The vinegar reacts with the baking soda, causing foam. The foam helps push out clogged debris, dirt and dust in the air conditioner.
Shake half a box of baking soda down the drain of the air conditioner.
Pour 1 cup of vinegar down the drain following the baking soda. The drain will begin to bubble and foam.
Wait for the drain to stop foaming.
Flush the drain using hot tap water to unclog the drain.