I have both sets of fans. I ran both of them before having a rebuilt cooling unit installed in April. Setting was always 4 or 5. Now I use setting number 3 with temperatures at 38° and 0° F. Place where I had unit installed did not recommend that I run the fans inside fridge. Their thoughts were that it makes cooling unit work to hard. Not sure that would be the case. But so far I have not used the ones inside fridge. Fans in the roof vent have not been used yet. They have a thermostat that will not turn on fans until 105° F.
I have the
ARP 1.1 control unit on Fridge. Highest temperature I have seen on the boiler so far is 372°F.
My original cooling unit died because of a ammonia leak at the boiler tube welds. Seems to be very common problem on the absorption fridges.
My new cooling unit is not a Amish cooling unit. But was done by a Amish company.
National RV Refrigeration. You can give Leon a call if you want info on your RV fridge.