Okay. I have a 2016 Navion 24j. The GFCI under the front of the bed kept tripping. I replaced it with a 20amp and everything worked. Went and got a 15 amp to put the correct amp in. Now the 15 amp will not work and when I put the 20 amp back in, it keeps tripping. Never have the breakers tripped. The outlets off the inverter work fine. As far as I know, the GFCI is connected to my kitchen outlet and the outlet above the vanity sink. Not sure what else is connected to it other than those. Any suggestions?