1. To remove the electrical element you need the correct size wrench, we found one at the local plumbing supply store for about 7 bucks. You will have to remove the gas burner tube and then the black cover, (3 screws) then remove the two wire leads and using the wrench take out element.
2. We thought we had a bad element, and found out it was the on/off switch. Took the switch out and tested and found it did not work, bought a new one and now have electric hot water.
There is only a few things that can go wrong with the electric side of the water heater.
Element, breaker, thermostate or switch. You can change all of them with out taking out the water heater.
With you breaker tripping, would recomend you check you switch on the outside of the hot water heater.
Have no idea on the fridge, ours stays on while driving
2011: 54 days, 2012: 218 days, 2013: 175 days, 2014: 196 days
2015: 188 days, 2016: 72 days,
2009 Berkshire, 390QS, and toad