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03-31-2020, 09:15 PM
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#1
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Member
Brand: Thor Motor Coach
Model: Vegas 24.1
State: Oregon
Posts: 35
THOR #4469
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Generator not starting 2017 Vegas 24.1
We've been starting our generator periodically throughout the winter, with no issues. We live in a coastal Oregon town where it doesn't get below freezing much. This time when I tried to start it, even with priming, the Generator turns over but immediately dies. I've tried this several times now with the same results. Any idea next steps? Thanks in advance.
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03-31-2020, 09:22 PM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: A.C.E 27.2
State: Louisiana
Posts: 242
THOR #17883
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Do you have more than 1/4 tank of fuel? The generator will not run if your fuel is below 1/4 tank.
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2017 Thor ACE 27.2
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03-31-2020, 09:37 PM
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#3
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Member
Brand: Thor Motor Coach
Model: Vegas 24.1
State: Oregon
Posts: 35
THOR #4469
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Thanks, the fuel level is exactly at 1/4 tank. We'll fill 'er up and see what happens. Appreciate the quick answer.
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04-01-2020, 02:22 AM
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#4
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 25.2
State: Missouri
Posts: 1,038
THOR #4687
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Just something else to check might be the oil level. If the oil level is low, the generator either won't start or die.
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2016 25.2 VEGAS with 2017 Jeep Wrangler AND Two Dogs; Norwegian Elkhound & Morkie (The RV is actually the Dog's) 
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04-01-2020, 03:17 AM
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#5
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Senior Member
Brand: Thor Motor Coach
Model: A.C.E. 27.2
State: Indiana
Posts: 1,885
THOR #14698
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2nd the 1/4 tank.
Suggest you fill that tank up to the top and add Seafoam. It’s not a good idea to store any vehicle without the tank being full and having a fuel preservative added. The tank not being full allows room for condensation which equates to water in the gas.
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2018 ACE 27.2
Toad 2019 Jeep Cherokee Trailhawk
Roadmaster Falcon All Terrain Towbar
Roadmaster Invisibrake
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04-22-2020, 09:26 PM
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#6
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 24.1
State: Michigan
Posts: 106
THOR #17787
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Same issue with mine. Fuel tank is full and the oil was just changed at the dealership. Shows correct level. I don't want to do anything that invalidates warranty but happy to take any suggestions regarding general troubleshooting.
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Capt Tom
Aviator, trailblazer, last of the big spenders, father of dragons, RV newbie
"What happens in my Vegas, stays in my Vegas."
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04-23-2020, 03:43 AM
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#7
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Senior Member
Brand: Thor Motor Coach
Model: A.C.E 27.2
State: Louisiana
Posts: 242
THOR #17883
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You say same issues? It will start then die? Mine will do that from time to time. I just hit the prime button a little longer and she fires up and stays running.
Since you have a full tank of fuel and the oil was recently changed, it might be overfilled. If I remember correctly the oil level needs to be a little below the full mark as this can cause a no run situation.
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2017 Thor ACE 27.2
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04-23-2020, 04:20 AM
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#8
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Senior Member
Brand: Jayco
Model: Alante
State: West Virginia
Posts: 192
THOR #5597
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On our Jayco Alante, we were having trouble keeping the generator running after about 20 min, when I changed the oil in the generator, I didn't fill to the full line, and that solved our problem of shutting down after a few minutes.
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04-23-2020, 01:05 PM
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#9
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 24.1
State: Michigan
Posts: 106
THOR #17787
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I don't see a primer button on the unit. Mine starts via the cabin switch, the touch screen, or directly via the toggle switch on it. I started it yesterday via the direct switch and after it shut down it made a loud buzzing sound for several minutes. I think I'll bring it in and let the dealership deal with it.
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Capt Tom
Aviator, trailblazer, last of the big spenders, father of dragons, RV newbie
"What happens in my Vegas, stays in my Vegas."
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04-23-2020, 01:29 PM
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#10
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Axis/Vegas Enthusiast
Brand: Thor Motor Coach
Model: Axis 24.4
State: Michigan
Posts: 9,837
THOR #1150
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Quote:
Originally Posted by AAL787
I don't see a primer button on the unit. Mine starts via the cabin switch, the touch screen, or directly via the toggle switch on it. I started it yesterday via the direct switch and after it shut down it made a loud buzzing sound for several minutes. I think I'll bring it in and let the dealership deal with it.
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To prime you hold the start/stop rocker on "Stop" until the LED lights then hold for 15-30 seconds (you should hear the fuel pump running--I can on our 24.1).
Where are you in Michigan? There is an Onan/Cummins shop on Grand River in New Hudson (just west of General RV's main office). I would take it there (especially since any RV dealer will just take it to Onan/Cummins anyway).
Back in 2014 they built a bunch of the genny's with bad fuel pumps--ours was one. I took our Axis to that shop in New Hudson and they had the fuel pump replaced within an hour.
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04-23-2020, 05:02 PM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 24.1
State: Michigan
Posts: 106
THOR #17787
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Thanks for the tip on priming. I'll give it another shot. I'm in Portage, MI on the west side of the state. I have an appointment with the dealership next week so if the problem doesn't resolve I'll try Cummins.
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Capt Tom
Aviator, trailblazer, last of the big spenders, father of dragons, RV newbie
"What happens in my Vegas, stays in my Vegas."
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07-30-2022, 05:19 PM
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#12
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Junior Member
Brand: Thor Motor Coach
State: Georgia
Posts: 9
THOR #18826
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No generator
 Know this post is old BUT. Will it even turn over if the fuel is low. Mine not getting power for some reason.
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07-30-2022, 05:25 PM
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#13
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,379
THOR #7035
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Quote:
Originally Posted by OCB
Know this post is old BUT. Will it even turn over if the fuel is low. Mine not getting power for some reason. |
Low fuel does not prevent the generator from turning over and trying to start. It just won't start and run.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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07-30-2022, 06:13 PM
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#14
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Junior Member
Brand: Thor Motor Coach
State: Georgia
Posts: 9
THOR #18826
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Guess I need to start hunting the fuses
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08-05-2022, 11:33 PM
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#15
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Member
Brand: Thor Motor Coach
Model: Hurricane 34J
State: Illinois
Posts: 76
THOR #12548
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Quote:
Originally Posted by OCB
Guess I need to start hunting the fuses
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Did you ever figure this out? I'm on a trip as I type this and I'm having the same "no cranking" issue. Well, technically, you said "no power" and I think I have power getting to the front of the generator. But it's not cranking at all, like there's no power.
It was working fine on our last trip (which was a three-week one). But while parked in storage for a few weeks, the batteries drained. I could have sworn I made sure the master power and the inverter were off--but both house & chassis were dead. Jumping the truck got me driving to home, and plugging into 50Amp shore power got the batteries fully charged back up. But the generator is completely non-responsive and I'm scratching my head on what to check since there is power running to the front of the thing.
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