I have a toy hauler fifth wheel 50amp. Recently I noticed the voltage meter was fluctuating up and down from 12.6-14.3 after about a day at camp with full service hook up. When that happens I would turn off ice maker or one of the ac units and after a while it would be fine and read a normal 13.6 and stay there. The first day I had everything running both ac units we used microwave out side fridge is on Hot water tank etc. but it seemed to jump after I turned ice maker on. Never had a problem till recently.
What and why would that meter fluctuate.
What and why would that meter fluctuate.