I made a stupid mistake on our trip back from Florida. I had winterized the camper when we were in Florida. On the way back the temps were in the low 30's so I decided to put a few gallons in the FW tank and just run the toilet. Left everything else "sealed". It got very cold on the 2nd night but the water was still working fine and the tank heaters were doing their thing. on the last leg and then the first night at home it dropped to single digits.
My intention was to re-winterize when we hit Maryland but because the temps were in the single digits for days the pump froze solid. I kept the furnace running but apparently it is not ducted to the front compartment where the pump is and since I did not have the HW heater on it stayed cold. I figured this out later
In hindsight I should have either de-winterized completely or not at all!
Now, I am waiting for the temps here to moderate a bit to assess my stupidity induced damage.
I'll let you know how it turns out.