[DQDick]

We've had ours with no problems for eight years now, but we also clipped the thermostat so it's away from the hose and use a 6" hose I got from rvwaterfilterstore.com at the city water connection so the thermostat is hanging completely out of the rig in the outside temps. I also use a lighted extension cord to plug it in with so I can check to see if the breaker of GFI is tripped at a distance. Usually the park has a heat tape plugged in there also and I don't want their problem to cause one for me. I'm also not sure how the outside hose freezing could cause and inside problem. The furnace is supposed to keep that from happening, unless you're using another heat source. I'd check your furnace connections and make sure the vent line that dumps in the utility runs isn't blocked.