Clogged Condensate Drain Line

Build up of this debris can be carried off as condensate drains from the coil.

Clogged condensate drain line.

If the line isn t properly cleaned algae and mold can grow inside and clog the drain causing elevated humidity musty odors and water damage inside your home. As indoor air circulates through the evaporator coil dust dirt and other airborne particles can be trapped by moisture. But that drain line is pretty small so it doesn t take much for it to become clogged. However many homeowners don t realize the problem is usually avoidable with regular care and diy ac maintenance.

When everything is working properly condensation runs down the drain line and exits outside your house. In addition dirt and debris or even bugs can work their way in. Sediment algae mold and insects can all clog it up. This is the condensate drain which plays an important role in removing condensation produced by your air conditioner s evaporator coil.

A clogged condensate drain line is one of the most common reasons homeowners need to call in for professional repair for their ac system. If your condensate drain line is clogged you can likely remove the clog yourself. Because the drain line is an enclosed wet space it s a prime location for mold mildew and sludge to make it their home. Just pour a cup of bleach in the drain line s access opening near the indoor air conditioning unit.

If the condensate drain line is clogged you will need to use a wet dry vacuum or a special pump to unclog the line. If not drained regularly all of these items could cause a clog in the line. Over time it can become trapped in your condensate drain line causing blockage. When that happens water backs up into the drain pan under your air handler.

Signs the ac drain line is clogged. What causes a clogged ac condensate drain line. Condensation from air conditioning coils contains bacteria that can form slime and clog the condensate pan drain tube.