My 2002 Monaco Windsor is parked at home in 0 degree weather. I turned the heat pump on 40 degrees to keep it thawed. I just went out to check and I found no power. I've got 50 amps going to the m/...
At Zero degrees heat pumps should shut down (in fact long about freezing they should shut down) I doubt the heat pumps run through a 2000 watt inverter as they would shut it down due to overload.
Contact Xantrex to find if the inverter is still under warranty and cost of repair. There is also a Xantrex repair guy in Quartzite AZ but I have lost his contact info.