Originally Posted by Streaminfree
May sound stupid, but do you know how to turn on the furnace, when I select hp on thermostat I get e7 error.
E7 means no power to the trailer--which there isnt since you aren't plugged in to shore power. The AC and HP will NOT run on just the batteries, which is why you will get and E7 code if the thermostat is set to HP (heat pump) or AC. You need to scroll through the 'Mode' setting on the themostat and select "Furnace". This will then kick on the furnace running on 12v
and propane. Make sure of course that your batteries are not in "store" mode.
The furnace WILL drain the batteries relatively quickly, so use sparingly. Then use your generator to top up the batteries.