Hi Tim. I had a N-300 in my previous camper. Mine was the first version (01?). There was no DC current draw on propane
. No electronics. There were two issues: 1) because they put the controls inside, the thermal couple to safety valve wires were long. As a result, there was considerable voltage drop between the two and the safety valve would randomly shut down the propane
. Lots of very unhappy folks. They fixed the problem by using larger wires but there were at least a dozen push connectors/switch contacts in line that sooner or later will need cleaning or the same thing will occur. Google search Norcold N300 problem for some of the discussions. 2) the cooling coils/fins are in the freezer so that works great but at the expensive of the fridge
section. Frozen chicken and sour milk.
I added proper baffles and an outside fan which did help. The installation guide talks about the baffles, unfortunately my trailer manufacturer didn't read it. A fan inside might help as well. The third version may be an improvement??? Raz