Matt_Colie wrote:
You have bad connections along the "daisy chain" and it is probably the neutral, but that doesn't matter. RVs are all wired with solid NM cable and that is only S-Brain stupid (IMNSHO). Boats have been wired in stranded NM for decades because of the vibration. Most power boats run about 50 hours a year and they still have trouble with power wiring loosening up in the terminals.
Shut down the power and take a day and check every single connection in the system. That means every screw on every receptacle (outlet) and every wire nut and every terminal screw or buss in the main box. If you can't get a screw to tighten even a little, back it out an half a turn and run it back down.
This will be an amazing PITA, but if you do them all and don't skip any - even the one you never use in the underneath - then the problem will probably disappear.
Oh, if you find any receptacles wired as push-in (insertion), remove the conductor, strip more if needed and clamp it under a screw. Push-in just doesn't last in RVs that are actually used over the road.
Matt
X2
I learned this lesson the hard way. Being new to RV's I've been learning as I go along. 2yrs ago we were dry camping in very hot weather down in Maryland. All of a sudden, smell of smoke in the coach, and lost all A/C. Shut gen down, hit batt disconnects, isolated smell to A/C breaker panel in bathroom. Took the cover off and the nuetral connections had become loose and eventually burned through whatever connection was left. I got running again by stripping the charred insulation back and cleaning up the neutral bar and re-attaching, but that whole scenario could have ended much differently if it had started a fire.
Jim