Onan 5.5 HGJAB start UPDATE
When I try to start my Onan 5.5 HGJAB (Gas) the lights dim and maybe 1 click. I've tried it plugged in to shore power and also with the engine running. Batteries are fairly new, clean, full of water, ...
Forum Discussion
Belgique wrote:
Batteries are fairly new, clean, full of water, and showing 14.4V with a meter.
I hope that was measured when plugged into shore power or with the truck running.
Measure the voltage at the battery when you try to start it.
Then measure the voltage at the gen when trying.
If BOTH readings drop below 10.5, then you have battery(s) going bad or something has the starter locked up; that could be the gen engine.
If the two readings are both above 10.5 but a lot different, then you have a bad connection.
The lights dimming during the start attempt tends to indicate that something is failing rather than just a connection problem.
