Central Air (Inside Unit)?

Question

What would cause my central air unit inside to leak water! It is not frozen and the unit is still blowing cold air! There was no water in the drain pipe and as far as i can see and no water is dripping! Help Please!

Answer 1

where is the leak? an uninsulated gas or vapor line is probably the culprit here, especially if it runs through your attic and you are noticing the leak from the ceiling. also the line, if uninsulated, will leak in the mechanical room/closet. the gas line is larger than the liquid line and cold to the touch. if uninsulated, the line will form condensation on it and drip water.

make certain the big copper vapor line going to your indoor coil in insulated. cheap-easy fix!

yeah, what you are descibing is way too much water for condensation. by code, you may only have a primary drain if it drains into the foundation. also, make certain your water heater isnt the problem, if it's in the same closet.

hvac techs may say i'm wrong, but i have unplugged primary drains before using a clothes hanger. also, i have used compressed air from a compressor to blow a primary drain out. check the insulation on your lines and if its not that, your drain must be clogged if you are certain the evap isnt icing over. GL with it!

Answer 2

Either your drain line is plugged or your drain pan (under the coil) may have a crack.  Where do you see the water?

Answer 3

is your a coil on the bottom your blower above it? if so is there a p-trap?if there isnt a running p-trap get one installed you have a negative flow unit it needs a p-trap otherwize either the floor drain or your a/c drain line is clogged can you see the inside of the coil could be clogged evap coil

Answer 4

HVAC Tech.:  There are TWO drains the primary is the one attached to the bottom of the evaporator and is inside the tunnel of the unit. That one can rust through and leak into the secondary drain. Secondaries usually have a drip pipe so you will notice when water begins to come out of it, a warning that it is time to have a technician look at it. Sometimes the secondary drain pan will shift level and overflow into the attic and wet the celling below. A serious problem. I would strongly recommend you have a technician take a look for you.

Answer 5

Your drain pipe is resticted. Fix that and your problems are resolved.