Why Does Air Conditioner Leak Water From The Bottom Of The Unit, Instead Of Out Of The Drip Pipe?
water is dripping from bottom of air conditioner (home unit) instead of the pipe that runs from the unit.
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Either the drain hole is plugged or you don’t have enough pitch to the rear of the unit.
The pan has a PVC condensation drain line. It has become blocked and the pan is filling and overflowing. It is relatively easy to fix. You need a shop vac, a hacksaw, a 1″ PVC connector and some PVC primer (get clear if possible) and glue. First turn the system off to stop producing more condensation. Cut the PVC pipe in a straight section as close to the pan as possible with the hacksaw. Suck the end of the pipe going in to the pan with the shop vac ( this is usually where the clog forms). Seal the hose over the pipe with your hand for maximum suction. Make sure to suck all the water that will come out. Next repeat on other end of cut pipe. If the pipe empties in to a pump on the floor, don’t bother with sucking the other end.
Make sure both ends of cut pipe are dry. Apply primer to 1 1/2″ of each end of cut pipes as well as inside of both ends of connector. Next apply cement to end of one pipe and inside of one end of connector. Insert pipe into connector and hold for 30 seconds. Do this quickly as glue fuses PVC very quickly. Repeat on other end and you’re done.
If you can’t handle all this you’ll have to pay an HVAC tech to do it.
An insect has probably crawled into the drain hole and made a mud cocoon that blocks the hole. With the unit turned off, take a wooden dowel or a smooth stick and work it around in the hole. You may just open it up again. I’ve had this work for me.