Additionally, the humidity that may be present in the air may be removed from the room by using your air conditioner. If this is the case, all of this water will gather in the drip pan of your air handler, and from there it will run into a drain tube that will eventually go outside of your house. Nevertheless, with time, this air conditioner drain tube may get clogged, which may result in water damage. Where exactly do clogs get their start? A natural buildup of germs that is already present in the air is one of the reasons. This water eventually makes its way down the drain tube, leaving behind residue that has the potential to become mold or algae. Due to the fact that the drain tube runs outside, there is also the possibility of a blockage developing on the other end. For instance, if the drain is located in a very dusty area, it may get obstructed by a clod of dirt. How can I determine if there is a blockage in my drain? Older types of air handlers do not have this capability and will not be able to recognize that the air drip pan is overflowing. However, many current air handlers are designed to shut themselves off once they detect that the air drip pan is full. It is possible that you may not become aware of the issue until water begins to flow from your ceiling or vents. What is the best way to unclog a drain? Unclogging a drain is not a do-it-yourself project that every homeowner should attempt. It will be our pleasure to be of service to you. 1431-183 Air Conditioning & Heating is located at 3406 Nocona Cove, Round Rock, Texas 78665 and can be reached at (512) 336-1431. 1431ac.com.