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Cooper Mechanical Blog

Common AC Problems: Clogged Drain Line

Posted by: Cooper MechanicalWednesday, April 15, 2020

AC cleaning unit with clogged drain line

HVAC Problems: Clogged Drain Line and Overflowing Drain Pan

HVAC drain lines remove excess moisture and water that your air conditioner pulls from the air. Condensation runs through your drain line and exits your house. Condensation also accumulates when warm air passes over the evaporator coils. When everything works as it should, moisture is dispersed and evaporates. However, if water is building up and overflowing from the drain pain, this is a sign that something is wrong. The most common issue is a clogged drain line that causes water to backup into the drain pan. Clogged drain lines are common problems and can be fixed with regular maintenance and professional cleaning.

What Causes a Clogged Drain Line?

Drain lines become clogged when there is sediment or debris that gets stuck and prevents water from easily moving through. Dirt and debris can accumulate if your HVAC filters are missing or very, very dirty. Dirt and dust is small, but it can build up enough over time that it starts to restrict water flow. If left unchecked, a clogged drain line can do more than make a mess. It can also overly tax your HVAC system, making it harder to cool your home or office.

How Will I Know a Drain Line is Clogged?

Your average homeowner is probably not thinking about drain lines until they notice a change in HVAC performance. Here are signs that you may have an AC problem related to a clogged line:

  • HVAC has stopped working
  • Rooms won't cool; Feels humid
  • Water leaks and stains on ceiling

If you suspect that you have a clogged drain line, call Cooper Mechanical Services for an inspection and cleaning. To keep your unit running in optimal condition, sign up for a Clean & Service agreement that provides scheduled cleaning twice a year.

Clean & Service with Cooper Mechanical Services

A Clean & Service agreement offers homeowners twice-a-year service. A Cooper professional will schedule a visit before high-use seasons and give your entire HVAC unit a chemical-grade cleaning and inspection.

Our Clean & Service plans include chemical cleaning of condenser and evaporator coils,  drain lines and drain pan. It's a smart way to take care of your HVAC so it lives a long life. To learn more about our service plans, give us a call or contact us through our website.