RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
 

Go Back   Thor Forums > Thor Tech Forums > Motorhome Tech Topics
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 10-08-2015, 03:42 PM   #1
Junior Member
 
Brand: Thor Motor Coach
State: Illinois
Posts: 4
THOR #3009
Thor Axis Generator won't start

2014 Thor Axis . generator worked fine at home. Now we are on the road and would like to use the AC and 110 outlets but the generator won't start. It turns over but won't catch. Have tried all the start buttons including the one on the generator itself. Have tried with and without the motor running. Have a full tank of gas. Any suggestions?
__________________

__________________
Wrobomom is offline   Reply With Quote
Old 10-08-2015, 03:47 PM   #2
Senior Member
 
Brand: Thor Motor Coach
State: Florida
Posts: 1,069
THOR #1249
Just a wag, but at the gen., I think there is a priming button you may want to try if not already. Also, check the fuel filter for clogging.
Good luck.
__________________

__________________
2015 Thor Vegas 24.1 in Ocala
mcr1010 is offline   Reply With Quote
Old 10-08-2015, 04:00 PM   #3
Senior Member
 
Larry's Avatar
 
Brand: Thor Motor Coach
Model: Axis 24.1
State: Georgia
Posts: 837
THOR #1123
I would try priming it at the start switch as mcr1010 suggested if you haven't already. Mine is a bit ornery to start unless I prime it a couple of times and hold the start button after it fires off until it gets running good.

You probably already know this, but just in case; hold the start button on the panel in the down position until the light comes on to prime it.
__________________
Larry is offline   Reply With Quote
Old 10-08-2015, 04:02 PM   #4
Axis/Vegas Enthusiast
 
JamieGeek's Avatar
 
Brand: Thor Motor Coach
Model: Axis 24.1
State: Michigan
Posts: 9,249
THOR #1150
To prime the generator: Hold the switch to the "Stop" position. The light should turn on after a few seconds. Hold for about 15 seconds. (If someone is near the generator they should hear the fuel pump running when you are doing this.)

Also note that Cummins shipped some genny's with bad fuel pumps for a while there. Ours had one: Was running fine on the road one day when it just up and quit. I couldn't get it running after that. The Cummins tech replaced the pump in about 10 minutes (funny he knew exactly what to do and had it all done quickly--before the paperwork could even be done).
__________________
2014 Thor Axis 24.1
2021 Mach-E
blog - https://spareelectrons.wordpress.com/
JamieGeek is offline   Reply With Quote
Old 10-08-2015, 04:57 PM   #5
Junior Member
 
Brand: Thor Motor Coach
State: Illinois
Posts: 4
THOR #3009
Nothing yet

Thanks for the suggestions. We had already tried priming at the generator with no luck but didn't know the secret of priming at the control panel so we tried that. No change. Sorry but no clue how to check for clogged fuel filter. Supposed to get to 105 degrees today so was hoping for a miracle.
__________________
Wrobomom is offline   Reply With Quote
Old 10-08-2015, 04:58 PM   #6
Junior Member
 
Brand: Thor Motor Coach
State: Illinois
Posts: 4
THOR #3009
Oh, our generator is an Onan.
__________________
Wrobomom is offline   Reply With Quote
Old 10-08-2015, 05:23 PM   #7
Axis/Vegas Enthusiast
 
JamieGeek's Avatar
 
Brand: Thor Motor Coach
Model: Axis 24.1
State: Michigan
Posts: 9,249
THOR #1150
Onan is owned by Cummins.
__________________
2014 Thor Axis 24.1
2021 Mach-E
blog - https://spareelectrons.wordpress.com/
JamieGeek is offline   Reply With Quote
Old 10-08-2015, 06:56 PM   #8
Senior Member
 
Brand: Thor Motor Coach
State: Florida
Posts: 1,069
THOR #1249
[QUOTE=Snip. Sorry but no clue how to check for clogged fuel filter. Supposed to get to 105 degrees today so was hoping for a miracle.[/QUOTE]

Check your manual. The filter is buried in there out of site, but can be accessed. Trace the gas line back and you can find it. You may have to remove a plate, panel etc. to access it. Can't remember.....sorry.

I installed an easy to reach-see inline fuel filter for just that reason. Also installed an inline shut-off valve to run carb dry.
Good luck
__________________
2015 Thor Vegas 24.1 in Ocala
mcr1010 is offline   Reply With Quote
Old 10-08-2015, 10:24 PM   #9
Senior Member
 
Bruce's Avatar
 
Brand: Thor Motor Coach
Model: Axis 25.1
State: Pennsylvania
Posts: 299
THOR #1503
How much fuel is in your tank. The generator fuel pickup is set higher in the tank to prevent running the tank dry.

Bruce
__________________
Bruce is offline   Reply With Quote
Old 10-08-2015, 10:44 PM   #10
Senior Member
 
Brand: Thor Motor Coach
Model: Tiffin Open Road 32SA
State: Colorado
Posts: 238
THOR #1147
Ours is really hard to start, but so far it always works, eventually. The procedure I've developed is

1. Prime until the lite comes on.
2. Crank it for 10 to 20 seconds. It won't start.
3. Prime again.
4. Let it sit for a minute or two.
5. Hit the start switch. It will usually start this time. If not, repeat steps 3 through 5. I've never had to do ot more than twice.

Why does it work? No clue!

Regards,

Randy
__________________
groswald is offline   Reply With Quote
Old 10-08-2015, 11:19 PM   #11
Junior Member
 
Brand: Thor Motor Coach
State: Illinois
Posts: 4
THOR #3009
Thanks all. We'll try tonight when we stop for the night.
__________________
Wrobomom is offline   Reply With Quote
Old 10-09-2015, 12:41 AM   #12
Senior Member
 
Brand: Thor Motor Coach
Model: 2015 vegas 24.1
State: Illinois
Posts: 180
THOR #1448
We have better luck with the switch on the dash, rather than the switch by the door.
__________________
jazzfest is offline   Reply With Quote
Old 10-09-2015, 03:21 AM   #13
Senior Member
 
Mr Sunshine's Avatar
 
Brand: Thor Motor Coach
Model: 2016 Vegas 25.2
State: Florida
Posts: 2,267
THOR #1589
Quote:
Originally Posted by groswald View Post
Ours is really hard to start, but so far it always works, eventually. The procedure I've developed is

1. Prime until the lite comes on.
2. Crank it for 10 to 20 seconds. It won't start.
3. Prime again.
4. Let it sit for a minute or two.
5. Hit the start switch. It will usually start this time. If not, repeat steps 3 through 5. I've never had to do ot more than twice.

Why does it work? No clue!

Regards,

Randy
This works for us, too. And, like Bruce pointed out, it will not start or run if the gas is less than about 1/4.
Please report back when you figure it out!
__________________
I think we need to stop calling it "working from home" and start calling it "living at work!"
Mr Sunshine is offline   Reply With Quote
Old 09-10-2020, 12:47 AM   #14
Member
 
Brand: Thor Motor Coach
State: Arizona
Posts: 32
THOR #13374
Generator on Thor 24.1 Axis 2014 Altitude sensitive?

We had a surprise Sept snowstorm in Colorado. The RV park, at 8200 feet, lost power, and since I was going to bed, I let it ride. With power restored the next morning, I discussed with other RVers, asking if anyone turned on their Onans, and learned there might be an adjustment necessary when at this altitude. Anyone else know anything about this?
__________________
Jinx is offline   Reply With Quote
Old 09-10-2020, 02:22 AM   #15
Senior Member
 
OldWEB's Avatar
 
Brand: Thor Motor Coach
State: England
Posts: 375
THOR #16471
Quote:
Originally Posted by Jinx View Post
We had a surprise Sept snowstorm in Colorado. The RV park, at 8200 feet, lost power, and since I was going to bed, I let it ride. With power restored the next morning, I discussed with other RVers, asking if anyone turned on their Onans, and learned there might be an adjustment necessary when at this altitude. Anyone else know anything about this?
The adjustment is right on the carb, pretty self explanatory when you look at it.
__________________

__________________
OldWEB is offline   Reply With Quote
Reply

Tags
axis, generator, thor

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 11:39 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2
×