Geotempo wrote:
I have the same problem on my 2004 vista 268. I connected a spare battery I have for a trolling motor directly to the fridge and it started running perfectly out of the battery. When I connected the fridge again to the boat battery the compressor would run for a few seconds and stop. While inspecting the wiring I observed that the battery Isolator was heavily corroded and the alternator breaker was tripped and would not reset. Could this cause a voltage drop enough that the fridge compressor would not run? I have a Norcold NR751.
I never saw this thread the first time around !
The blue box is a charge splitter; connecting the alternator outputs to the batteries, yet isolating the batteries from each other. My boat, single engine, has a 3 post one; alternator output in the centre, the outer posts connected to the batteries.
As such, there is no direct connection to the fridge from that blue box on mine. The connections need to be clean (mine were not) and the insulating covers were not fitted in place properly. The 12V fridge wiring on mine comes from the main "systems" breaker. I have no doubt I'll have to rewire it should I ever try to use it on 12V ! Easy enough now, I know the wiring on my boat intimately !
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