Furnace only kicks on with shore power
I have a 2016 Passport 2810BHWE and this is our third summer camping. This RV has never been able to run off the batteries alone through the night, even with a full charge. We had he stock interstate batteries tested and there was nothing wrong with them. Then we decided this year to get 2 deep cell batteries. It still will not ignite off of sole batter power with a full charge. As soon as we hook up shore power, it kicks right on. We have taken it in to a licensed dealer to have it evaluated and it still doesn’t work. Please help! This is very frustrating. I wondering if I need to change the thermostat?
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