I had a Trane XL16i, VS air handler and Perfect-Fit electronic air cleaner installed last November. Everything has been fine until about a month ago when the EAC started popping constantly in 5-10 minute bursts that would stop once in a while and then begin again. I removed the panel for the media air filter and noticed water inside the air handler that was dripping on the EAC causing an arcing that was making the noise. My A/C repairman has been back 3 times now but I still have the same problem. They have changed the speed settings of the fan and sealed an air leak but still the problem persists.

Any ideas would be welcome. BTW - I live in Florida and it is hot and humid this time of year...