We have just brought home (new to us) a 2015 Cruiser Aire fifth wheel. Plugged it into our outside 20A outlet and it trips the GFCI. I have isolated the problem to the 15A microwave circuit. I have u...
- microwave is unplugged - outlet tests no problems ( wired correctly, no open grounds) - I have isolated it to this circuit ( no faults for 48 hours with this circuit turned off at the circuit breaker) - house outlet tests no problems - wouldn't be the extension cord, 50/30/15 adapters as it is working with microwave circuit turned off.