How to Spot Your Primary and Secondary AC Drains

Did you know your air conditioner doesn’t just cool your home-it also removes humidity from the air? That moisture has to go somewhere, and that’s where your drain lines come in. Your system actually has 2 drain lines: a PRIMARY and a SECONDARY. Knowing which is which can help you catch problems early and avoid water damage.

Here’s how to tell them apart:

Primary Drain Line:

• This is the main line that carries condensation away from your indoor coil.

• You’ll usually see it on the outside of your home near the foundation.

• When your system is working properly, and when there is humidity, this line should slowly drip water when the unit is running.

  Secondary Drain Line:

• This acts a backup if the primary drain ever gets clogged.

• It is often located higher up on the wall above the primary drain.

• If you ever notice water dripping from this line, it’s a warning sign that your primary drain is blocked and needs attention ASAP!

  
  

  Red Beard’s Tip: Check your drain lines every month during the cooling season. If you ever see water dripping from the secondary line, shut your system off and give us a call! Catching early can save you from costly water damage and repairs!