Noob - First trip preparation!
As I was preparing the trailer for the first trip. I plugged the trailer into the house outlet (15A) and was checking everything out. TV was on, AC was running, everything was working great. Made a few trips out with groceries, went to turn on the refrigerator. Turned the switch on, and got the AC and gas light flashing. Hmmm, I thought, let me see what that means. Break out the owners manual to troubleshoot fridge. Lack of AC power and gas. OK, gas not on turn on gas, and fridge starts working!
Notice TV and AC not on any more. Hmmm, must have tripped a breaker turning on fridge. Go in the house, and check breakers. All on. Check all GFIs in house, learned that one the hard way before, long story! All GFIs in house good. Check circuit breakers and fuses in trailer. All good. Look for GFIs in trailer, all goood. Hmmm, start scratching my head. Get another extension cord from house, plug in to a different outlet in house and run it straight to TV to plug in. TV works. Check connections on trailer. Good. Check all adapters, Good. Follow extension cord back to house. Not plugged in anymore! ARRRRGGGGHHHHHH! Plug it back in and discover there is a blue light on on the trailer cable and trailer that comes on when the power is on!