When you live in a moderate to large home or share the space with several individuals, a ductless mini-split air conditioner can provide an efficient way to keep everyone comfortable. Unfortunately, these systems are not impervious to wear and tear, and over time, they can develop leaks. If you're wondering about the condition of your ductless AC unit, check for these common culprits of leaks before calling an HVAC contractor.

What Are Common Reasons for Ductless Air Conditioning Leaks?

1. Dirty Air Filter

The air filter traps dirt, pollen, dust, and other particulates floating inside your home. However, if the air filter becomes dirty from trapping a significant amount of air pollutants, air won't be able to flow properly through the unit. As the filter's efficiency decreases, some of the debris will end up on the evaporator coils. When this happens, the refrigerant-filled coils can’t make direct contact with the air passing over them. Consequently, the air isn’t properly cooled, while the coils continue to get colder until they freeze. This results in increasingly warmer air being blown into the home, and eventually, the unit could stop working.

If you notice your ductless system becoming less effective at cooling your home, don’t hesitate to contact an air conditioning contractor. They will inspect the system to determine the problem and clean or repair it as necessary.

2. Damaged Drain Pan

When the air conditioner pulls the warm air from your home to be cooled, moisture condenses on the evaporator coils and is directed out of the system and into a drain pan. Over time, this component can become rusty and develop cracks, which can allow water to leak onto the floor.

To determine if the drain pan is the source of your leak, locate it on the back of the air conditioner. It is usually positioned underneath the evaporator coils and is connected to the conduit line connecting the inside and outside units. If you notice any rust or holes, have an HVAC contractor replace it immediately.

3. Clogged Condensate Line

Normally, the condensed moisture that collects in the drain pan flows out of the home through a condensate line. However, this line can become clogged with debris and develop mold or algae growth. If this happens, the water can’t exit and will instead back up in the drain pan and overflow inside your home.

If the drain pan doesn’t appear damaged and is overflowing with water, the condensate line is probably to blame. An HVAC contractor can clean the line and teach you how to prevent mold and algae growth between tuneups.

If your ductless mini-split air conditioner has developed a leak, the professionals at Ruby Mountain HVAC & Refrigeration can provide a trusted solution. For 15 years, these HVAC contractors have provided heating, cooling, and refrigeration services to homes and businesses in Elko and Northeastern Nevada. Their technicians are available 24/7 for emergency assistance. Visit their website to learn more about their preventative maintenance program, and call (775) 738-9375 to request a quote.