You may have already known that an air conditioner works by cooling air, but do you know that it also pulls out humidity out of a building? The drawn-out humidity will then form water going down the drain line.
However, you may notice that the air conditioner drain line outside the house produces so much water. Should you worry about it? Find out below.
How Much Should Water Drain from Air Conditioner?
The AC system in your house or building comprises of outside unit (the compressor) and an inside unit (the air handler). During the cooling mode, Freon gas fills the copper coils within the air handler with freezing temperature, then it condensates, as explained by the basic science principle, if you still remember.
The water begins to be condensed by the coils in the air handler because the coils have a cold temperature compared to the building temperature. After this process occurs, the condensation drip via the coils, strikes the drain pan and then flows through the AC water drain pipe extension to the outside of the building to be drained.
Read also: Why is My Portable AC Producing so Much Water?
So, how much is too much water that should drain from the AC system? Generally, it is considered normal for the air conditioner to drain any amount of water between 5 to 20 gallons daily during the peak of the summer season or high-humidity days. A clogged AC drain line can lead to mold and mildew growth in your central air conditioning system, and can also cause water damage and poor indoor air quality. To prevent this, you should regularly flush the drain line by using a wet-dry vacuum or by having a professional perform a line cleaning.
The issue arises if the unit drains the water inside the building instead of draining water to the outside of the building. This means the air conditioner system is not working as it should. To understand it better, here’s how the AC unit drains water to the outside of the house:
- The AC draws humid and warm air from the inside of the building and directs it to the evaporator coils.
- The air conditioner’s refrigerant absorbs the hot air and transfers it from the inside unit to the outside unit.
- After the air strikes the coils, its moisture is gathered in a drain pan which is located right under the coils.
- After the water is already in the drain pan, it goes through the condensate line or the PVC pipe for ac drain on the outside.
Don’t panic right away if you notice pooling water around the AC condensate drain because it’s normal for the AC system. On the other hand, you need to start paying attention if the pooling water is formed inside the building because it can signify something wrong with the air conditioner system. Some components may need to be repaired or replaced.
Here are some of the possible problems if AC water starts draining inside the building:
- A frozen coil
- A faulty or rusted drain pan
- A congested condensate drain line
- A leakage in the refrigerant
- A defective condensate pump
If you notice water starts leaking from the AC unit inside the building, it is recommended to switch off the whole system and get in touch with a professional technician. The smallest amount of water can turn into a major problem if left untreated, leading to costly repair bills or a need to replace the entire unit.
The only case where you should worry if the air conditioner drain line outside house drips water is if the line is backing up or getting congested. This may lead to damage situation on the inside unit, rot, or mold.
On the other hand, if no water is drained, there’s also a possibility that the system is not working correctly or the climate is too dry. Feel free to contact an expert if you feel alarmed by the issue.
AirconMag is an experienced author and Air Conditioner expert. With years of practical experience in the field authored several informative articles on various aspects of AC unit, including installation, maintenance, and repair
