AC question

**angelo921** · 06-21-2006, 02:41 PM

I noticed that this year when my residential central A/C is running that it does not drip at all inside the laundry sink where it usually does. What could be causing this change?

thanks
Angelo

**angelo921** · 06-21-2006, 03:46 PM

i noticed that the pipe that goes to the laundry sink where it used to drip comes from the humidifer which is off in the summer and the other part comes from inside the sheet metal where the evaporator coil is.

Any help is appreciated.

thanks
Angelo

**newoldtech** · 06-21-2006, 04:12 PM

Depending on how humid it is, it may take some time to start dripping. You should have the unit serviced every year and they will clean out the drain for you. It could save you from water damage.

**smngmu** · 06-21-2006, 04:14 PM

Is it running/cooling? If you answered yes, is the humidity unseasonably low. Evaporator drainage is the moisture pulled from the inside air. If there's no moisture, then no drip.Have the drains cleaned out every year.There could be a blockage of old gunk in the line.Better to have it checked than have ceiling repaired.

[Edited by smngmu on 06-21-2006 at 04:18 PM]

**angelo921** · 06-21-2006, 04:55 PM

Yes it is cooling, it has not been that humid lately but we have had a couple days near 90 degrees and still no drip. What exactly am I to have cleaned? The pipes that are suppose to drip?

**smngmu** · 06-21-2006, 05:04 PM

Originally posted by angelo921
Yes it is cooling, it has not been that humid lately but we have had a couple days near 90 degrees and still no drip. What exactly am I to have cleaned? The pipes that are suppose to drip?

Yes. The lines that drip are called drains and if they get clogged by old gunk/dirt/dust,etc.,they will not drain as normal.Have you gone to check it out upstairs?Regular maintenance/service is to catch things of this nature before they become a bigger problem.That would be my first step.

**angelo921** · 06-21-2006, 05:24 PM

Im sorry if i sound dumb but what am i checking for upstairs? The setup I have in the laundry room is white plastic pipe coming from the evaporator coil and that drains into my laundry sink. This is the same plastic pipe that in the winter when I have the heat on it drips water into the laundry sink.

For whats it worth, from the evaporator coil there is a small black hose which connects to the white pipe which goes to the laundry sink. I disconnected the black hose from the white pipe and put a cup there to see if water drips from the black hose into the cup and nothing drips (the A/C is running? and we have a humid 90 degree day today.

**smngmu** · 06-21-2006, 05:29 PM

Not to sound gross,put your mouth on it and blow. If you can, it's open.If you can't,it's plugged.If it's hard at first then opens,stand back because everything behind the clog is comin' out.YECH!!!!!

**angelo921** · 06-21-2006, 05:35 PM

How about if I just disconnect the other side of the black hose that comes out of a pipe which connects to the evaporator coil and blow through it to see if its clogged? The whole black hose together is only about 2 feet long.

**smngmu** · 06-21-2006, 05:50 PM

That'll work too provided the clog,if any ,is in the pipe and not the pan itself.If it's in the pan, how would you blow thru it? I'd much rather have the pipe in hand in case it does let go.If it's plugged and you break it loose, that stuff is freakin' nasty.

**angelo921** · 06-21-2006, 07:05 PM

Problem is fixed, here is what I did. I took the black hose off from both ends and blew in it and I was able to blow through it without a problem. I then flashed a flashlight into the pipe which connects to the evaporator coil and noticed and obstruction there. I used a screwdriver gently and slowly put it a through the hole about 1 inch and then the water started flowing out. I than quickly put the rubber hose back on. It seemed like there was a little bit of rust buildup. Could this have caused a problem with the evaporator since the water was not coming out?

**angelo921** · 06-22-2006, 07:50 AM

bump

**mjk_na** · 06-22-2006, 09:23 AM

Originally posted by angelo921
Could this have caused a problem with the evaporator since the water was not coming out?

Nope.

It is better to clean the line with warm soap water every month/two months, and wipe it clean and dry. Less headache.

By the way, I would rather connect a wet and dry vacuum cleaner at one end of the drain to pull/push out the dirt. Safer and healthier.

Some general reading:

http://www.air-conditioner-selection...intenance.html

P/S: Please do not post bump messages. It's not allowed in this forum.

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