Ideas for what? What is your question? Boondocking, during on a trip, doesn't get/stay cold, how many batterys do I need? See what I mean.
On this FR Salem the refrigerator is supposed to work on the inverter going down the road. Mine has no power after the shore power is removed. FR said in an email to contact dealer!
Is your inverter on? Is the circuit breaker or fuse for the inverter good/on. Did you use a multi meter to check voltage in to the inverter. Is the master battery disconnect on? There is a circuit breaker up near to tongue of the trailer, is that tripped. That's what I'm getting at. There is a lot to check first.
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2012 SunSeeker 3100SS Toad-1962 Futura Average 100 + days camping