1.Condenser leak water.When the Air-Conditioner working in heating mode,after the Air-Conditioner runs for some time and the outdoor condenser will become very cool and frost,while the Air-Conditioner defrosting and will make some water on condenser.It's normal.
2.Copper pipe condensate water.In cooling mode, the pipe temperature low, this will cause water condense on the copper pipe.It's normal.
3.Outdoor unit leak water disturb the neighbors. The drain pipe drip water, lengthening the pipe and fixed it on plughole, then the water will down with the plughole.
(Please call for service.)