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16ACE27 is correct; some coaches "probably" have the BIM wired to the gen/jacks side of the 100 amp breaker tied to the coach batteries. There are wiring variations out there.
So the alternator is charging the chassis battery when engine is running.....BIM closes in a few minutes to also try to charge coach batteries, but they are actually disconnected if the100 amp breaker has tripped open. When engine is shut off chassis battery charging stops and the BIM remains closed for a time keeping chassis battery connected to the gen micro controller. Then the BIM opens off the chassis battery connection a few minutes after (since no charging is detected)......and no 12vdc on the gen micro shuts the gen down. An evil scenario, depending on how the coach is wired. Find your 100 amp re-settable breaker and reset is the likely solution per 16ACE27.
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