Can't find my manual now, but I seem to remember that the self testing takes a couple of minutes before supplying power to monte. Watching the readout will tell you what voltage is on both lines, current being drawn on both lines, any error codes, etc. Best I can pull off top of head without my book. John
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2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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