Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 07-12-2016, 06:38 PM   #1
Member
 
Country Coach Owners Club
Join Date: Nov 2013
Posts: 42
Onan circuit breaker issue

I have 35 Amp Onan 8000 diesel fired generator. I continues to pop the circuit breaker with small loads like a toaster or perhaps coffee maker. I've cut power at the panel to block heater and other non essential things. Assuming the breaker is just getting old (2003). Has anyone changed out the breaker and how hard is it to do. Can I only get a replacement breaker from Onan or are they generic?
__________________

__________________
KiheiKen is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 07-12-2016, 06:41 PM   #2
Senior Member
 
gacamp's Avatar
 
American Coach Owners Club
Join Date: Feb 2012
Location: Hardee Co. Florida
Posts: 334
I bought my breaker for a 7500 Onan from PPL in Houston, give them a try. It was not hard to change and I believe there is a youtube video on how to do it.
__________________

__________________
1998 American Eagle
gacamp is offline   Reply With Quote
Old 07-12-2016, 08:07 PM   #3
Senior Member
 
Koop's Avatar
 
Join Date: Dec 2012
Location: Full Timing
Posts: 744
On my Onan 7.5kW quiet diesel, it's a double pole, single throw breaker that provides 35 amps on each leg. An overload on either leg will trip the breaker and open both circuits.

I haven't opened mine up to see if it has specific mounting requirements, so I can't answer your question. I just wanted to clarify - the generator puts out 35 amps on each of two circuits.
__________________
Mike
2003 Alpine Coach 40MDTS - 400HP Cummins ISL
Can Am Spyder Roadster
Koop is offline   Reply With Quote
Old 07-12-2016, 08:14 PM   #4
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 17,454
You can get a replacement breaker from Onan. Pricey, but it's the only one that fits. It's a twin 35A breaker, as Koop describes. I think about $80-$100, depending on the source.

It could conceivably be a bad breaker, but I would be checking the loads carefully before concluding that. The last thing you turned on in merely the straw that broke the camel's back. It's the total aggregate load on one leg that will cause a trip. You might also have a short circuit somewhere - that will always trip a breaker.
__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is offline   Reply With Quote
Old 07-13-2016, 01:20 PM   #5
Junior Member
 
Join Date: Feb 2011
Location: FL
Posts: 10
I completed that job this morning. It is not hard, had to order the part from Cummins. It was 96 and change with tax and all.
One side had failed. I took it apart and found it to be full of rust.
__________________
Craft is offline   Reply With Quote
Old 07-13-2016, 11:12 PM   #6
Member
 
Country Coach Owners Club
Join Date: Nov 2013
Posts: 42
Quote:
Originally Posted by Craft View Post
I completed that job this morning. It is not hard, had to order the part from Cummins. It was 96 and change with tax and all.
One side had failed. I took it apart and found it to be full of rust.
I'm apprehensive digging into the generator as the schematic the parts store sent me is not reflective of mine. We are on the road dry camping for two weeks and if I get it torn apart and have an issue I'm screwed. I sent the parts store a photo of my panel but they have not replied. Would be nice to repair as I have 4 grandkids with us and really need the electrical capacity. Craft, if you want to compare panels you can email me at KiheiKen@hotmail.com and I'll send you a photo of my specific panel and circuit breaker switch.
__________________
KiheiKen is offline   Reply With Quote
Old 08-17-2016, 12:49 PM   #7
Member
 
Country Coach Owners Club
Join Date: Nov 2013
Posts: 42
Thanks for the input from everyone. I bought a breaker from Cummins ($110) and 45 screws and 4 hours later I had it replaced and working. If all the gymnasts hadn't been in Rio competing in the Olympics I might have tried hiring one to contort and flex to get to the screws in the rear of the generator cover.
__________________
KiheiKen is offline   Reply With Quote
Old 08-18-2016, 11:12 AM   #8
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 17,454
Quote:
If all the gymnasts hadn't been in Rio competing in the Olympics I might have tried hiring one to contort and flex to get to the screws in the rear of the generator cover.
Ain't that the truth! Onan designs their gensets to be repaired only on a workbench, or maybe mounted on a concrete slab in an open yard.
__________________

__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is offline   Reply With Quote
Reply

Tags
circuit breaker, onan



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Replacing the circuit breaker on an Onan 7500 Quiet Diesel Denali Monaco Owner's Forum 9 06-17-2010 10:27 AM
Onan circuit breaker Richard and Cris Alpine Coach Owner's Forum 5 10-22-2008 02:02 PM
Onan 4000 circuit breaker bad? Jerry J Winnebago Industries Owner's Forum 5 05-02-2008 06:22 PM
Onan circuit breaker RV Systems & Appliances 5 12-31-1969 07:00 PM
Onan 4000 circuit breaker bad? RV Systems & Appliances 5 12-31-1969 07:00 PM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:52 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.