Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
Jayco RV Owners Forum
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-26-2016, 01:54 PM   #1
Senior Member
 
Join Date: Aug 2016
Location: Palm City
Posts: 100
Onan 8000 QD generator problem

The fuel pump won't shut off and the engine will not turn over. It sounds like it keeps priming. The manual troubleshooting section says it could be a bad ground or faulty stop switch. What do you guys think?
Capt. Rich is offline   Reply With Quote
Old 09-26-2016, 02:35 PM   #2
Senior Member
 
Join Date: Nov 2015
Posts: 1,036
Try cleaning the positive and negative battery connections at the generator and check the incoming battery voltage. Also try holding the Prime (Stop position) switch for at least one minute, and toggle switch to view any fault codes.
Are there any fault codes?

It sounds like the worst case scenario with those symptoms if a failed controller board (expensive ~$2500).
However some have suggested "resetting it" by removing all incoming power for 15 minutes?
abarkl is offline   Reply With Quote
Old 09-26-2016, 03:43 PM   #3
Senior Member
 
hoppers4's Avatar
 
Join Date: Mar 2015
Location: Port Orchard
Posts: 2,064
Is the Prime/Start switch stuck or broken so it's always in the Prime position? Can you hear the switch change position?
__________________
Don
hoppers4 is offline   Reply With Quote
Old 09-26-2016, 03:43 PM   #4
Senior Member
 
Join Date: Aug 2016
Location: Palm City
Posts: 100
The voltage is 13 volts at the generator chassis and 13 volts at the starter. I jumped the starter at the solenoid and it only spun it did not engage. I removed the fuel outlet fitting at the fuel filter and when the start button is pushed it pumps quite well. I disconnected the positive lead at the generator chassis but the control box is still energized. Help!
Capt. Rich is offline   Reply With Quote
Old 09-26-2016, 03:45 PM   #5
Senior Member
 
hoppers4's Avatar
 
Join Date: Mar 2015
Location: Port Orchard
Posts: 2,064
Since you responded with more symptoms I see that it can't be the switch.
__________________
Don
hoppers4 is offline   Reply With Quote
Old 09-26-2016, 03:46 PM   #6
Senior Member
 
Join Date: Aug 2016
Location: Palm City
Posts: 100
The start button does click when applied.
Capt. Rich is offline   Reply With Quote
Old 09-26-2016, 03:48 PM   #7
Senior Member
 
hoppers4's Avatar
 
Join Date: Mar 2015
Location: Port Orchard
Posts: 2,064
What's the voltage at the solenoid with the starter engaged? Bad ground, bad connection in the 12VDC wiring, bad battery that draws down under load?
__________________
Don
hoppers4 is offline   Reply With Quote
Old 09-26-2016, 06:49 PM   #8
Senior Member
 
Join Date: Aug 2016
Location: Palm City
Posts: 100
Onan 8000 QD generator problem

The generator will not turn over. The fuel pump keeps pumping and when you push start the pump keeps pumping with no starter action. There is 13.1 volts showing on the display,13 volts on the generator chassis and 13 volts at the starter. I jumped the starter solenoid and the starter just spun but would not engage. I removed the out hose on the filter and it is pumping quite well. Any thoughts? The trouble shooting section of the owner's manual said ground wire or faulty stop switch. Is the stop switch the solenoid air cut off for the engine? Thanks
Capt. Rich is offline   Reply With Quote
Old 09-26-2016, 10:00 PM   #9
Senior Member
 
Join Date: Apr 2016
Location: Morganton
Posts: 724
I am not up to date so to speak on that generator but a friend had one similar I remember once he had a problem like that, I remember a square cover about 4 x 4 inches with four screws next to prime switch under that were two fuses, he replace one and it cranked and started
che57vy is offline   Reply With Quote
Old 09-27-2016, 08:59 AM   #10
Senior Member
 
Join Date: Aug 2016
Location: Palm City
Posts: 100
Thanks All for the suggestions. The generator is running and I am a bit of a moron. I live in Florida and the Jayco is now on a road trip in Wisconsin, my homeland. I was not holding the start button down long enough. It took 14 second hold time for the genny to heat and start. Think and learn!
Capt. Rich is offline   Reply With Quote
Old 09-27-2016, 10:12 AM   #11
Senior Member
 
Join Date: Nov 2015
Posts: 1,036
Glad to hear you got it and thanks for the follow up.
We have the same generator in our motorhome.
abarkl is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

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


All times are GMT -6. The time now is 03:08 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.