Tank heaters on if you have them, do make sue you run your furnace and not just electric heat. In My trailer the furnace vents in the basement and the pipes actually follow the water pipes to the kitchen across the fresh water and galley tanks.
Brian
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B and B
2022 Venture RV SportTrek STT 302 VRB Travel Trailer
2018 Heartland Landmark 365 Louisville 5th Wheel
2015 Heartland Bighorn 5th Wheel
2013 FR Rockwood 8289WS 5th Wheel
2012 FR Rockwood 2703 SS Travel Trailer
I'd suggest draining sewer hose and putting it away. If there's liquid in a low spot that freezes, thawing would be a pain. Leave liquid in the tank.
We were in our 3100 at 19 degrees with 20 mph wind fully exposed and had no problems. Compartments with water pump and sewer hookup stayed about 50 degrees with furnace at 65.
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RamblerGuy
2011 Sunseeker 3100
2016 Ford Edge Toad
We camped last weekend the temperature went down to 18,we ran the furnace for heat.The inside water system worked and did not freeze there was little wind my lp tank went from 2/3 to 1/3 in one night.we drained and moved out when the temps where in the 30s.I am glade that we had no problems.
I think some of these answers may be assuming you are talking about an overnight freeze that is isolated to a period of several hours. If the temps are not going to rebound tomorrow, further precautions may also be indicated.
We camped last weekend the temperature went down to 18,we ran the furnace for heat.The inside water system worked and did not freeze there was little wind my lp tank went from 2/3 to 1/3 in one night.we drained and moved out when the temps where in the 30s.I am glade that we had no problems.
Little operating experience for you... Don't rely on the LEDs for propane tank level, always double check the tank mounted gauge. I once ran out with 1/3 still indicated. 😱