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Reply to "ERR Cruise Commander mosfets and bridge rectifier get hot"

Top suspect is one side of the motor is shorted to frame ground, that will take out the drivers in a flash!  It's frequently possible to replace the drivers on these boards and revive them, it all depends on what happened to it.

It's still getting hot as at least one of the FET drivers is shorted.

So I replaced the FET drivers.  It still gets hot when in forward or reverse but everything responds again and it will shift from forward, neutral, and reverse; even the rail sounds board responds to it.  But when it’s put into a direction, the motor will try to turn (I tried a couple different motors with same result) and will show about 1/2 volt. Then after all that the breaker will trip.  So maybe bridge rectifier now?



Tony

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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