How to Unclog the Condensate Drain Line in Your AC

Clogged Drain Line in Burbank, CA

In addition to cooling your home, your air conditioner also removes humidity from inside your home. The indoor AC unit has a condensate drain line to remove moisture, but it can become clogged. You can try to fix this problem yourself before calling an HVAC company.

AC Condensate Drain Line

When humidity is removed from your home, the moisture from it condenses on metal coils inside of the indoor AC unit. The water will fall into a drip pan, and from there, it goes into a condensate drain line that drains outdoor.

How Can a Condensate Drain Line Become Clogged?

Since the line is moist, it’s a great location for mold and mildew to grow. When there’s enough growth, it can clog the line. Water will then back up and can cause damage to the indoor AC unit and your home.

Turn Off the Power

Turn off your air conditioner at the thermostat and flip its breaker in the circuit breaker panel.

Find the Drain Pipe

The pipe is outside your home where the outdoor AC unit is located. Remove the cap on the drain line and look inside. Clear any debris you can reach, making sure not to push it further inside of the line.

Pour in Vinegar

Pour a cup of white vinegar into the pipe and replace the cap. Wait half hour and then turn your AC system back on at the circuit breaker panel and turn on the thermostat.

Wet/Dry Vacuum

If the condensate drain line is still blocked, attach a wet/dry vacuum to it. Turn the vacuum on and let it run for a few minutes. This should clear any clogs.

Certified Service in Burbank, CA, can help you with stubborn clogs. We can also help you with the installation, repair, and maintenance of heaters and air conditioners. We also service heat pumps, packaged systems, thermostats, evaporator coils, and fan coils. Call us today to find out how our skilled technicians can help you.