A friend asked me to help troubleshoot his RV generator.It will not crank using the onboard start switch or the remote on the switch panel.Using a meter I verified there is solid battery voltage at the starter solenoid. There is one small white wire on that lug that I assume powers the control & start circuits.Using a meter I determined which terminal on the solenoid needs switched 12v and I jumped it and the genny cranked.Anyone have a wiring diagram of the control circuit?I'm hoping there's a fuse or an interlock somewhere I haven't discovered.

There should be a 12 volt fuse near the control panel on the generator. If bad will not crank.

I assumed there would be but I can't find one.

Assuming the info I found on the internet for Onan 3.6 is the model your friend has shows in a pic location of fuse, sort of on the right bottom corner side. My 4000 has it on the front of the control panel.

A link or something would be great.I took apart the panel but there's no fuse on or in it.Could it be some rinky-dink inline fuse tucked out of sight?

On the the Onan there should be a small plate with the model number and serial number that's the info you need to search the internet accurately, the manuals are online. The 3.6 should flash out an error code on the stop start switch led

Onan 3.6 won't crank | Good Sam Community

guy48065
Explorer
Sep 12, 2022
You need power to flash an error code.

I guess there's nobody else active here with an Onan 3.6 that chime in about where the fuse is hidden.
Gary45
Explorer
Sep 11, 2022
On the the Onan there should be a small plate with the model number and serial number that's the info you need to search the internet accurately, the manuals are online. The 3.6 should flash out an error code on the stop start switch led
guy48065
Explorer
Sep 11, 2022
A link or something would be great.

I took apart the panel but there's no fuse on or in it.
Could it be some rinky-dink inline fuse tucked out of sight?
Gary45
Explorer
Sep 11, 2022
Assuming the info I found on the internet for Onan 3.6 is the model your friend has shows in a pic location of fuse, sort of on the right bottom corner side. My 4000 has it on the front of the control panel.
guy48065
Explorer
Sep 10, 2022
I assumed there would be but I can't find one.
Gary45
Explorer
Sep 05, 2022
There should be a 12 volt fuse near the control panel on the generator. If bad will not crank.

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Onan 3.6 won't crank

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