central Air Conditioning

mike66 · 08-04-2012, 09:18 AM

i have a modular home, my A/C unit is leaking water into the furnace area and wont cool the house

Doc Holliday · 08-04-2012, 09:24 AM

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.

mike66 · 08-04-2012, 09:37 AM

no it just has a rubber line that runs from the a coil pan to the outside. we cleaned that line.

mike66 · 08-04-2012, 09:39 AM

the unit is made by Vexar

mike66 · 08-04-2012, 09:47 AM

dd you read my comment. i could really use some help

Doc Holliday · 08-04-2012, 10:15 AM

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?

mike66 · 08-04-2012, 10:27 AM

the ducts are beneath the home. I put in the home approx. 7 years ago and didnt start having problems till last year.

mike66 · 08-04-2012, 10:28 AM

it has opeated fine till then.

Doc Holliday · 08-04-2012, 01:14 PM

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?

mike66 · 08-04-2012, 01:34 PM

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.

Doc Holliday · 08-04-2012, 06:04 PM

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?

mike66 · 08-04-2012, 06:32 PM

One filter is in the door and the other sets on top of the unit. Both filters are new.

Doc Holliday · 08-04-2012, 07:27 PM

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?

mike66 · 08-04-2012, 07:50 PM

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?

Johnny'sHotDogs · 08-04-2012, 08:25 PM

Quote:

Originally Posted by mike66

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?