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 FixANSWER: 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. cost for hvac trainingThey can get blocked from dusty conditions or dirt in the air. through the wall air conditioner energy starWhen 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. fan coil unit supportBe 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.Window AC – How It WorksHave questions about your leaking window AC unit? Please leave a comment below and we can assist.Cars are awesome, until they’re not. I call it the absence of malice problem: I only notice something is wrong because I take for granted how often everything is right.

Turn the key and go; it’s what we demand of today’s cars, and it’s what we overwhelmingly get. When things do go awry, it’s always interesting to see how people cope. When your brakes go from spongy to making that funny grinding sound, you call your mechanic or drive straight to the dealership. If the engine suddenly starts cutting out, or a tire blows and you thwap to a halt by the side of the road, same thing. But if your air conditioning starts blowing hot air, you do other things. You punch the dash; you adjust the little vents. You jam away at the settings. You turn it off and turn it on again. Then you leave the car in the driveway overnight, and go out the next day and actually believe it might be OK, like it just needed a little rest so it could become air conditioning again. My Dad didn’t believe in air conditioning, so we stuck to the plastic seat in the back of the station wagon, our small legs requiring skin grafts when we tried to move. There was a choice, of course.

We could sit on a blanket instead; the temperature at sweltering levels, and we could pick between itchy wool and molten plastic. We’d fight over the windows and stick our heads out like puppies, which was fun until Mom and Dad did up their windows and my father would yell “buffeting!” and make us close them. I liked that sound, the suction of air that whumped around the interior of the car, making me think this was what outer space must sound like. Children without air conditioning develop excellent imaginations. If your car is older and blowing hot air, you might want to give your next steps a hard think. The voyage to the root of a dead air conditioning system can be exasperating, exhausting and expensive. Your coolant has leaked out, and you can’t just top it up. It’s illegal to add a gas to your system that depletes the ozone (in Canada, usually R134A); you have to find the leak, and this is where the fun begins. Very basically, your car’s air conditioning system is made up of three major components: the compressor, the evaporator and the condenser.

There are lots of hoses, tubes, valves and sensors connecting them all. A technician has to figure out where the leak is occurring, and will pressurize the system with nitrogen to find out. This diagnostic isn’t the expensive part. Several shops told me it’s about an hour at shop rate to tell you what’s going on. Find the leak, fix the problem, easy. These are expensive parts and systems, and one of them – the evaporator – is usually behind the dash which requires a lot of rip-apart work. When the kids were small, I had a 10-year-old car. The air conditioning went, I foolishly let an eager young mechanic talk me into letting him fix it. I committed to Phase One believing it was Phase Done. While the 600 bucks was huge to me at the time, having the A/C working again seemed like a necessary one. Until a week later, when I once again had vents blasting hot air. I slammed back into the garage with no good grace, demanding that he fix the fix. And that is when I learned the most valuable lesson, ever, about old cars and air conditioning.

All of the parts of that system are the same age, which means if one goes, why shouldn’t the others? Finding the leak and replacing one is zero guarantee that you can’t develop another leak in another part in a week or a month. Was I prepared to go perhaps $1,500 dollars in to get back my arctic air? On a car that was maybe worth $2,000? I told the kids we were now driving like in olden times. I’ve watched mechanics explain this to a customer. I’ve witnessed the truth of the term “shooting the messenger” more times in places that specialize in auto air conditioning than just about anywhere else. My theory on expensive mechanical repairs to older vehicles is pretty simple: if a car you trust has cost you little in recent years and needs a couple grand to keep it going for another year or two, that’s cheaper than new car payments while you take some time to consider your next purchase. My theory on air conditioning? It’s a nice-to-have, not a need-to-have for most of us.