CENTERAL AC leak

I have a central AC unit, the main unit is outside and the main duct that I put the filter in is now leaking water and if I go into the garage I noticed water there too. I have no idea where the water is comming from, how to stop it and if I should call some one for help.... Please help

 

Start by checking the evaporator drain pan(inside coil),it may be plugged and or rusted through.
Check the drain line leaving the pan for obstruction.
There may or may not be a float activated water pump.Check that it is working properly.
Check the rest of the drain line and insure that it is not plugged.

Is the unit operating properly other than the leaking water?

 

AC works fine I think... but Im not sure where the pan is or how to get to it.. I looked inside the unit and saw the copper pipes and where the water drains out but the only way I can tell if somethign is blocking it is if I cut the pipe... Can you please explain it to me in a bit more detail thanks .

 

here are some examples of evaporators,the drain pans are located on the bottom and are black.this should give you some idea of what to look for on your unit.

DO NOT cut anything,the drain lines may be copper(more likely they are plastic/rubber) but I suspect what you are looking at are refrigeration lines and you really don't want to cut those.

If the drain line is copper you could pour some water into the pan to test the drain line.Usually we use compressed air to "blow" out the drain lines.

You should be able to remove the pan from the bottom of the evaporator with a little muking around.