| Strange Onan problem [message #368905] |
Sat, 26 February 2022 10:01  |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma:
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Senior Member |
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GeorgeZ and I are trying to find a recurring problem with his genset. To set the stage, it has a prime circuit which has worked correctly for a looong tome. The priming circuit Takes 12 volts from the 12v feed to the gauge panel through a fuse and momentary switch to the Onan remote feed 12v when running wire.
Symptom is, the set will run until it warms up and then will blow the fuse on the engine control card (Dinosaur board) >and the fuse feeding 12V to the primer button. We tested it with an ammeter across the fuse on the card. When it fails the current jumps to the maximum my meter is capable of (30 Amps) indicating a dead short someplace. When inspected the primer fuse is also blown.
I can think of nothing but a short on the remote/gauge panel but open to speculation.
We're going back at it Monday with my Molex tools and do some selective disconnecting to try to find it... but open to ides.
Thoughts?
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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