I think it's called the air handler unit of my central AC(it's inside a closet and the filter is below that unit) I recently noticed one side of the air handler is sweating a lot and the water is dripping down onto the plywood and wicking up the sheetrock wall. I know it's not supposed to be doing this but I have no idea how to troubleshoot this. I checked the outside drain and it doesn't appear to have anything blocking it. Anyone with advice will be much appreciated.
Thanks,
Judee

Remove the panels and see if the insulation has come loose from the inside, if so you can reglue if after it drys out.