Trailer: 2014 Escape 21 -- The Skylark. Towed by a 2014 Highlander
Like Alf, I burned out the electrical side when I plugged in the trailer before there was water in the hot water tank. Only I wasn't sure how to fix it, so it cost me about $100.00 to have it fixed.
Here's my question. Since I drained the hot water thank this year, and blew out all the water lines (well, except for the line between the fresh water thank and the pump -- it got too cold by the time I heard the story about water remaining in that line). Is there any reason why I couldn't turn the hot water tank bypass valves back to their original position in the fall after I am done winterizing the trailer? that way there would be less chance of forgetting it in the spring.
I wouldn't simply ignore the bypass, since I wouldn't want to leave that short bypass line full of water over winter, but if the freshwater lines don't have antifreeze in them and everything is drained, I agree that there's no need to leave it in a bypassed configuration.