The drain from my ac is sweating in the wall leaking all over the floors; pipe is copper and has foam around?

Question

The drain from my ac is sweating in the wall leaking all over the floors; pipe is copper and has foam around?

Answer 1

The picture I get for your problem is that the condensate DRAIN piping from the pan under the evaporator/cooling coils in the duct outlet from your central heat/a/c air blower cabinet is funnelling an overflowing of condensate from the collection pan due to drain opening plugging.

I've found that the easist and quickest way to remove such plugging is to rig up a section of hose that can be slipped over the outlet of the drain line (outside the house) and taped air-tight with electricians tape; and the other end taped up to the suction side of a garage vacuum cleaner -- to suck out the plugging material and a good slug of clean condensate to clear the drain line all the way to the outside outfall.

I believe that should stop the serious 'sweating' of the a/c drain.  It's worked for me.

Answer 2

Copper isn't good for air conditioning drain because it will sweat do to the metal, I would replace it with a pvc pipe, this will ensure no ware and corrosion over time and will not sweat. Make sure you put that foam over the pipe to be gaurenteed your fix.

Answer 3

I would also bet that is your suction line that is freezing up and not your drain and your coil in your air handler is freezing over.

That is most often caused by poor air flow from dirty filters, plugged up evap coil, dirty blower, too many vents shut off, or any combination of those.

Answer 4

If it is insulated it should not be sweating that much check and make sure it does not have a leak or that it is not clogged, if clogged just shoot a little air through it this should clear it out make sure that the drain side is clear and for further maintenance pour about a half cup of bleach down it once a month to keep algae and such from growing inside it.

Answer 5

if you have a copper condensate line it should be insulated! are you sure that its the drain and not the low side line, in either case they should be insulated! rubatex!

Answer 6

Don't forget that you need to tilt the air conditioner downward into the street or lawn. Sometimes people forget and level them. At least a 1/2 " drop from inside to out.

There maybe a larger problem, but why not check out the easiest and cheapest first!