I leave ours on and plugged in (MH plugged into shore power) while we are using the unit during the season. Never had an issue last summer.
when we winterized, we left the doors propped open. can't help on the water/icemaker as we never set it up.....
2015 Georgetown 351DS
Chris, Garren (humans)
Edgar & Carlos (felines)
RIP Sophie, the sweetest cat ever.