If I read his post correctly, he's replaced the GFCI THREE times already. With that, the assumption the GFCI is "bad" is the wrong assumption. To go further, I'd suspect he has another issue and the GFCI is doing what it's supposed to do. There are two ways to trouble shoot. One is to trace all the wiring feeding OFF the GFCI. This means all the wiring AFTER the switch. The other method and most likely the easiest is to disconnect everything from the outlets feeding off the switch. If it still trips, then the problem is in the coach wiring. I'd start with the outside TV outlet. I'm assuming this is a factory install and not a DIY TV. These outlets are more prone to weather and water intrusion which causes corrosion etc. They're also easier to get to. From there, check any other outlets in your bays including any in the engine compartment. Best of luck in exorcising your demon.....Dennis
