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Old 08-04-2012, 08:18 AM   #1
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i have a modular home, my A/C unit is leaking water into the furnace area and wont cool the house


Last edited by mike66; 08-04-2012 at 08:22 AM.
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Old 08-04-2012, 08:24 AM   #2
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Stylequest, Intertherm?

Does your drain line have a p-trap on it? On these modular systems there is a rubber, flexible hose which comes with the air handler that is supposed to be extended and tied into a p-trap to allow the condensate to drain properly.

It could simply be that your drain line is blocked.

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Old 08-04-2012, 08:37 AM   #3
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no it just has a rubber line that runs from the a coil pan to the outside. we cleaned that line.
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Old 08-04-2012, 08:39 AM   #4
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the unit is made by Vexar
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Old 08-04-2012, 08:47 AM   #5
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dd you read my comment. i could really use some help
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Old 08-04-2012, 09:15 AM   #6
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Upflow or downflow? Are the ducts in the ceiling or beneath the home? Is this a new problem to an old and has been operating properly system or is this a new install?
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Old 08-04-2012, 09:27 AM   #7
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the ducts are beneath the home. I put in the home approx. 7 years ago and didnt start having problems till last year.
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Old 08-04-2012, 09:28 AM   #8
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it has opeated fine till then.
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Old 08-04-2012, 12:14 PM   #9
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I'm having a bit of difficulty imagining what the issue and set up is like, if you do or do not have a trap installed, if the water is backing up from th drain line or if it's condensation dripping from the coil or what..?

Logic is saying that the drain line is backed up so the water is building up in the furnace, but you've said the drain line is clear. If it is a water backing up in the drain line and building up in the furnace area than I'd suspect it's a high humidity issue so an excess of moisture is being pulled from the air and now the lack of a p-trap, assuming you don't have one, is rearing it's ugly head. To properly drain it needs a trap. You can install one just beneath the home so the drain would drop down from the unit directly into the trap and then drain out to wherever the drain line terminates.

Can take some pics?
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Old 08-04-2012, 12:34 PM   #10
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you are correct there is a trap under the house. the drain is clear. when i take the door off the front of the unit the water falls down the a coil correctly and goes down the drain. now when i put the door back on the front of the unit the water is drawn out of the tray below the a coil and drips onto the blower motor down below. sorry i wasnt that clear.
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Old 08-04-2012, 05:04 PM   #11
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Where are the air filters located, in the door or are they those metal filters that rest on the coil? Are they clean? How's the coil, clean? Have you tried removing the filters altogether and putting the door back on and seeing what results?
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Old 08-04-2012, 05:32 PM   #12
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One filter is in the door and the other sets on top of the unit. Both filters are new.
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Old 08-04-2012, 06:27 PM   #13
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take the filters off completely and put the door back on and see what happens. At this point I'm at a loss in all honesty. Do you have kind of duct leaks by chance? Has anything changed like the blower speed?
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Old 08-04-2012, 06:50 PM   #14
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Thanks I think maybe the a coil is bad because when I take the door off I get twice the air flow through the vents. I shined a light under the a coil and couldn't see the light on the outside. Is that a possibility?
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Old 08-04-2012, 07:25 PM   #15
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Quote:
Originally Posted by mike66 View Post
you are correct there is a trap under the house. the drain is clear. when i take the door off the front of the unit the water falls down the a coil correctly and goes down the drain. now when i put the door back on the front of the unit the water is drawn out of the tray below the a coil and drips onto the blower motor down below. sorry i wasnt that clear.

What do you mean by "the water is drawn out of the tray"?

Is the door contacting the pan or tray?

When was the last time the A coil was cleaned with an evap coil cleaning solution?

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