What Causes an A/C Unit to Leak? | Duggan’s One Hour Heating & Air Conditioning

What Causes an A/C Unit to Leak?

There are four main reasons why your air conditioning unit might be leaking. For help repairing or replacing your AC unit, call Duggan’s One Hour Heating & Air Conditioning.

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You might be surprised to see a leak springing from your air conditioning unit, of all places. Since when does running the AC increase your risk of water damage? Unfortunately, it’s actually common for air conditioning units to form leaks.  As soon as you spot moisture spreading from the equipment, you need to act to prevent water damage and rectify the problem in your AC unit. Here’s what might be causing the leak and how you can fix the issue.

Is the Drain Line Clogged or Disconnected?

Most of the time when we encounter a leaking AC unit, the culprit is the drain line. Perhaps it’s clogged with debris and causing the drain pan to overflow. The drain line might also not be secured to its fittings, resulting in weak points where it can leak.

Is the Condensate Pump Malfunctioning?

Sometimes, condensate pumps can become too dirty to function properly, which then leads to leakage from the unit. As the pump malfunctions and becomes moist, mold and mildew can grow, causing further blockages that continually contribute to leaks. Additionally, dirty air filters block the airflow to the evaporator coil, causing the coil to freeze and then melt.

Is the Air Filter Clogged?

Failing to switch out the AC unit’s filter can lead to numerous problems, including reduced system efficiency and general wear and tear. If you spot a leak from the unit, it could be occurring because the dirty filter has caused the unit to malfunction. That’s why we always advocate for frequent air conditioning maintenance.

Is the Unit Low on Refrigerant?

When the AC unit doesn’t have enough refrigerant, it can’t cool the system as well, which causes the evaporator coil to freeze and melt. Although the drain pan will catch some of this melted water, it might overflow and cause a visible leak.

Call Duggan’s One Hour Heating & Air Conditioning for Help

Depending on the severity and extent of the leak, you may need to replace the entire AC unit. Let our trained professionals take a look at the situation and determine what the next steps are. The longer you wait to address an AC leak, the longer you’ll live in discomfort and risk permanent moisture damage. Call 706-733-8703 to speak with a Duggan’s representative today!

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