Most of us take our air conditioners for granted. However, as with any other mechanical device, maintenance is necessary on a regular basis to keep your A/C running properly. One key maintenance step is cleaning your central A/C’s condensate drain system.
A condensate drain that goes awry can result in expensive property damage, degraded indoor air quality and a malfunctioning (or disabled) air conditioner.
What Does the Central A/C’s Condensate Drain Do?
When your A/C is operating, it cools air and removes moisture. As warm air moves across the evaporator coil, water vapor condenses as refrigerant in the coil extracts heat energy from the air. A pan positioned under the evaporator coil captures that moisture – gallons over the course of a day – and routes it into your home’s drainage system through the condensate drain line.
Damaging Effects
The condensate pan can provide an invitingly warm and moist environment for algae growth, which can spread into your drain line or trap, and block the drain. While placing an overflow receptacle beneath your air handler may catch much of this overflow, if it has a leak, is connected to a clogged drain, or is missing entirely, damaging household flooding can result from collected condensation.
Mold and bacteria can also develop in the condensate drain pan. These microorganisms can spread to the evaporator coil, impeding the heat exchange process. These contaminants can circulate in your indoor air, threatening the health of occupants with allergies or respiratory issues. Finally, a blocked condensate drain equipped with an overflow sensor can result in complete system shut-down.
If you schedule annual maintenance for your A/C, condensate drain system cleaning is an essential part of that process. You may clean it yourself periodically, following manufacturer guidelines. Contact us at Marsh Heating & Air Conditioning in the Twin Cities area to schedule maintenance and get advice on how to keep your central A/C’s condensate drain clean and functional.
Our goal is to help educate our customers in Minneapolis-St. Paul, Minnesota about energy and home comfort issues (specific to HVAC systems). For more information about condensate drains and other HVAC topics, download our free Home Comfort Resource guide.
Credit/Copyright Attribution: “Dirk Ercken/Shutterstock”