why is my air conditioner leaking water inside the house
As warm moist (humid) air from the room passes over the cold indoor coil, water condenses on the cold indoor coil and collects in the base pan where it flows to the rear of the unit. It is normal to see water dripping on the outdoor side of the unit. For more information, see. The unit may be installed so that it is tilted slightly into the room. It should be level or tilted slightly to the outside (about 1/4") so that any excess water will drip outside. Dirty filters can cause moisture to collect and drip on the floor.
8/9/2017 Question: I just turned my window AC unit ON today and it is leaking water inside my house. What could be the problem? I had it running for 3 weeks and all of a sudden it started leaking. There is a puddle of water on the window ledge on the inside of the house. Water is on the plastic vent where the cold air blows out. I believe that is where it is leaking but not sure. Can you tell me how to fix this? My carpet is soaking wet, I need this to stop leaking, please help!
Window AC Leaking Water Into House How To Fix ANSWER: You are going to check a few things to be sure the ac unit is installed properly and there is no water drainage block present Unplug the window AC unit. Clean up all the water on the AC unit, on the window ledge, and on the floor of your room. Check and be sure the AC is tightly sealed in the window. Do you feel warm air coming into the room around the AC unit? If you feel warm air coming in you need to seal it correctly. Seal in the window AC unit to prevent warm air from entering the room. Check to see if the drain holes on the rear of the ac unit are blocked. Clean the drain holes to allow water to drip out. Make sure the filter is clean and not clogged with massive dirt or dust. After cleaning up the water and having it turned off for 30 minutes or so, turn it back on and see if the water appears again. If water appears and starts dripping into your room again, check to see if the AC unit is properly sealed in the window.
If the AC unit is not sealed correctly, the moisture in the air coming in from outside gets condensed by the cold air inside the unit and this extra moisture builds up in AC unit and then leaks. SO BE SURE IT IS SEALED IN THE WINDOW CORRECTLY. AIR LEAK AIR CONDITIONER NOT PROPERLY SEALED IN WINDOW: If your window air conditioner is not sealed correctly, the warmer air from outside gets inside the air conditioner. When this happens, the moisture that is in the warmer air will be condensed by the colder air inside the air conditioner. When there is excess moisture inside the AC, water will leak. So if this is happening to you, make sure you have a good seal around the window AC. DRAIN IS BLOCKED DIRT OR DUST HAS BLOCKED THE DRAIN HOLES: There are drain holes (drip pan) at the rear of window AC units. They can get blocked from dusty conditions or dirt in the air. When this type of blockage happens, the water that would normally drip out will be trapped and water will leak from the front of the AC unit and at both sides of the unit.
Be sure to keep the drain holes clean and free of debris. Also clean the filters or replace them to prevent any type of blockage that may cause a water leak. OUTSIDE TEMP IS LOWER HEAVY MOISTURE IN OUTSIDE AIR: If it is raining or there is heavy moisture in the air outside, water evaporates much less than usual. This leads to excess water moisture in the air conditioner and this will cause water leaks. This is normal for most window AC units and using a drip pan can solve the issue if there is heavy moisture in the air outside. CONDENSER PUMP NOT WORKING BROKEN OR CLOGGED PUMP: If the condenser pump in the AC is faulty or clogged, it will cause water to leak. You can check the condenser/pump if you feel confident. Check for any blockage or loose wires. If the pump seems to be okay visually, you will need to test the pump with a meter to see if it is faulty. If so, you may be better off buying a new AC unit.
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