dsmithwc04
Aug 21, 2017Explorer II
5BGE Onan Generator issue. Yup, I searched :)
Alright, I've got a 4.8k onan 5BGEFA26100P in a 2000 Winnebago Adventurer.
Please read what I've tried already prior to posting, thanks!
My issue appears to be a common and easy problem to diagnose, but I'm stumped after talking to a few folks who really know their stuff.
The generator will immediately shut down after trying to start it. Disconnecting the RV allows the generator to run as long as the start button is depressed but once you stop holding it down the generator will again shut down.
The stator showed 2.8 ohms on pin 11 and 12. This is within spec.
The rotor showed 50-60 ohms on pin 9 and 10 so I cleaned the slip rings with 1000 grit sandpaper and got readings between 21-31 ohms while rotating the rotor by hand with an allen wrench. This is within spec.
I grounded the oil pressure switch lead to make sure it wasn't dead.
I checked the fuel level in RV which was about 1/3 tank. I've also tried to start when it was over 1/2 tank.
I replaced both the VR and the control board through flight systems.
I believe the fuel pump, ignition, etc on the genny is good since it will run great with the start button held down and the VR disconnected.
The oil level is good as well. I'm really stumped on this one.
Please read what I've tried already prior to posting, thanks!
My issue appears to be a common and easy problem to diagnose, but I'm stumped after talking to a few folks who really know their stuff.
The generator will immediately shut down after trying to start it. Disconnecting the RV allows the generator to run as long as the start button is depressed but once you stop holding it down the generator will again shut down.
The stator showed 2.8 ohms on pin 11 and 12. This is within spec.
The rotor showed 50-60 ohms on pin 9 and 10 so I cleaned the slip rings with 1000 grit sandpaper and got readings between 21-31 ohms while rotating the rotor by hand with an allen wrench. This is within spec.
I grounded the oil pressure switch lead to make sure it wasn't dead.
I checked the fuel level in RV which was about 1/3 tank. I've also tried to start when it was over 1/2 tank.
I replaced both the VR and the control board through flight systems.
I believe the fuel pump, ignition, etc on the genny is good since it will run great with the start button held down and the VR disconnected.
The oil level is good as well. I'm really stumped on this one.