Originally Posted by Martian
Do not consider that it is set up for full time function just because there is no inside switch. That switch needs to be used to turn it on and off. Some, myself included, have added interior switches with an indicator light to show when power is going to the water heater. Not using that outside switch will lead to the possibility of the ac side being on when there is no water in the heater. That will cost you a new element in just a few minutes.
A safe method is to turn the ac switch off before you unhook from the pedestal and back on after you get full flow out of a hot water tap. Do not bleed the air from the wh with the pressure and temp relief valve. Doing that will eliminate the air needed to absorb the expansion of the water when it is heated.
Thanks for the suggestions. What I have done is turned the water heater circuit breaker off in the main service panel in the garage of this toy hauler. We are still sitting in a park in Sun City AZ on west side of Peoria AZ. Having warm water to use is not a problem here right now with daily high tems of 108 to 111*F ..
Our plans to get up towards Show Low AZ went bad with the early forest fires , closed roads, more fires, more closed areas. So : We are getting ready to head to Wisconsin and Illinois to visit family and friends.