hi marc,
well on most systems i've seen like this the hour meter serves 2 purposes, 1- the hour meter display of course but it also should show the error codes if its setup to do so, if it does not then there should be a light on the dash that comes on when a code is set. Some have both.
As for a manual? no i dont have one handy but i can look around and see if i can find an error code sheet.
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