Hi there, I bought my 39MBHS rv new this year. I finally found the access panel to the hot water heater by taking out a panel in the basement. Then by sliding another panel back I found the pump. The pump is totally inaccessible and I was wondering if there is a trick or a different area to access it for winterization. Also which way should all the valves be turned in order to use the hot water tank? Every way I try there is about 90 second of lukewarm water and that's it. Also another lady in our park said the 12 volt switch on the control panel is for propane? It's so frustrating as none of the documentation that came with it covers this. Any assistance is appreciated.