Most are aware that an air conditioner cools air, but it’s less commonly known that it also extracts humidity from a building. This removed humidity then condenses into water, which travels 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.
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.
Problems occur when the unit drains water inside the building rather than outside. This indicates a malfunction in the air conditioning system. 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.
If you observe water pooling around the AC condensate drain, don’t be alarmed immediately, as this is typical. However, if water pools inside the building, it could indicate a problem with the air conditioning 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 the 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.