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Old 09-01-2015, 11:09 AM   #2
Robster_in_edmonds
Senior Member
 
City: Edmonds
Vessel Name: Miss Maui
Vessel Model: Bayliner 4788
Join Date: Apr 2013
Posts: 237
I spent my career selling high-end data systems and later developing software systems. I learned early on that usual issues in a customer-ready system end up being "layer one," meaning physical systems or connections. Over the years I solved multiple mysterious problems by having a technician re-terminate each and every wiring connection.

I'll bet your friend's problem is a gremlin caused by a weak or corroded ground wire connection. The higher-level techs all assume the layer one has been checked and tested. If it were me I would unplug, clean and plug back in all connectors, unscrew, clean, and re-tighten all connections, look for chafed wires and water drips. In three or four hours I'll wager the problem vanishes.
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