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AC Drain Line Clog

ac drain line clog

How AC Drain Lines Get Clogged And What To Do About It

Did you know that your air conditioner can make around 20 gallons of water each day while it is running? On especially hot days, your AC will work overtime to keep you cool and comfortable in your home. As it reduces the temperature it also pulls humidity from the air in your home. Under normal circumstances, the water will drain out of your home. However, if the drain (condensate) line is clogged, it can cause water build up and create a disaster and potential water damage to your home. Below we discuss how an ac drain line clog happens and how you can prevent them.

What Does Condensate Drain Line Do?

When your air conditioner is on and cooling your home it also dehumidifies the air. This process creates moisture that drips off the evaporator coil. The water then flows down into the drip pan connected to the condensate drain line. This drain line then carries the condensation out of your home.

How Does the AC Drain Line Clog?

Just like plumbing clogs, ac drain lines can also clog. Clogs are usually a result of growth and formation of bacteria in the drain line or a backup of debris such as leaves or other foliage from your backyard. Condensation can also lead your ac drain line to clog. As condensation drips off the evaporator coil, there is a possibility for it to mix with dust. As the dust combines with condensation it can turn into slime and sludge eventually forming a clog in the drain line. The buildup of sludge can also dry and solidify during the heating season when the drain line is not being used. Eventually it will become so clogged that it will prevent your unit from draining properly with possibility of water backing up into your home and causing costly water damage.

Signs Your AC Drain Line is Clogged

Signs you AC drain line is clogged include:

  • Musty, moldy smell throughout your entire home as air comes out from the registers/vents
  • Standing water near the indoor unit
  • Full condensate drain pan
  • Water damage in areas near the indoor unit
  • AC system is not cooling your home
  • AC system shuts down or does not turn on

Most units nowadays are equipped with an overflow sensor attached to the drip pan. As the pan fills with water the sensor is triggered and turns off the AC unit to prevent further water damage. If your unit has one be sure to have the sensor tested regularly. Contact a professional if you notice any of the signs above. They will know how to best clean a clogged drain line, or can determine if another issue is at hand.

Best Ways to Prevent an AC Drain Line Clog

One simple way to prevent your air conditioner from getting clogged would be to regularly replace the air filter. This will help limit the mount of debris and other particles that can make their way into the water that drains from your AC. Its not important to change the filters regularly or they will be ineffective. A good rule of thumb is to check it at least once a month and replace as needed at the very least once every 3 months. Another great way to help prevent an ac drain line clog is to have routine maintenance performed. At the very least have your AC unit inspected once a year. During maintenance we will clean the drain line and ensure it is properly draining. If you schedule routine maintenance for your HVAC system a technician will be able to spot any issues before they turn into costly catastrophic repairs.

Give Us A Call Today

If you suspect your AC drain line is clogged or are experiencing any AC issues, give us a call. You can reach LA Construction Heating and Air by calling 818-341-3406 or by contacting us online. Don’t hesitate to call us at the first sign of trouble. You do not want to allow the issue to become worse potentially leaving you with a properly working AC on a day you need it the most.

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