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.
  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 02-10-2012, 08:22 PM   #1
Holiday Rambler Owners Club
Join Date: Feb 2012
Location: baton rouge, la
Posts: 81
no 12volt without generator

I just picked up my new (to me) 1997 DamonUltrasport 35' motorhome. I've discovered that I only have 12v in the coach when the generator is running. the chassis is fine. I've checked the 3 batteries and they all show 12 volts. the cables running to the front of the convertor have no power. I haven't been able to try plugging the cable in because it is a 50 amp cable and I don't have an adapter. Is there a switch somewhere I haven't found? in my old Champion there were on/off switches inside the door for the coach and chassis, but I haven't found anything like that. Does anyone have any idea what I am missing?

jluke 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 02-10-2012, 09:13 PM   #2
Senior Member
Wanabee FTer's Avatar
Gulf Streamers Club
Ford Super Duty Owner
Join Date: Jul 2010
Location: Golden Village Palms, CA
Posts: 1,988
Blog Entries: 12
Have you checked the circuit breaker switch on the genset yet?

'98 Gulf Stream Sunsport 325, 7.5L Banks Power Pack, Koni FSD's, Air Bags, ReadyBrute Elite,
2000 Honda Accord

Wanabee FTer is offline   Reply With Quote
Old 02-10-2012, 09:31 PM   #3
Holiday Rambler Owners Club
Join Date: Feb 2012
Location: baton rouge, la
Posts: 81
Both breaker switches on the genset are on, but the gen works fine. the only time I have 12v in the coach is when it is running, nothing in the coach when it is off.
jluke is offline   Reply With Quote
Old 02-10-2012, 09:42 PM   #4
Join Date: Dec 2011
Posts: 56
There is a switch on the left side dash that turns off the coach batteries. My 98 has a emblem of a battery with a circle slash over the switch. Also under the hood in the 12v load center there are 3 relays that control the batteries. You can do a search for the load center pdf file which has wiring schematic. Hope this helps
rjdelapp is offline   Reply With Quote
Old 02-11-2012, 07:22 AM   #5
Moderator Emeritus
Gary RVRoamer's Avatar

Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 18,632
You are getting power when the converter runs, but not from the batteries. First thing to check is the house battery disconnect switch - is it on? If, so you determine if the relay is operates is working? Also, there may be a large cartridge fuse between the house 12v distribution system and the house batteries. My coach has a 300 amp fuse inline there.
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 02-11-2012, 11:28 AM   #6
Holiday Rambler Owners Club
Join Date: Feb 2012
Location: baton rouge, la
Posts: 81
Possible solution

I found an adapter and plugged into shore power and everything works, Pulled the dash switch and checked it for continuity and found none. suspecting a bad switch now, will be looking for a replacement. Wasn't sure what the switch was for before, since it didn't see to do anything. Thankss to everyone for their help, will post again when I find out for sure. the switch has a purple and and black on one side and a purple and white on the other, tempted to try jumping them, but I'm afraid I'll make things worse. the good news is that I have 12v in the coach without having to run the generator.
jluke is offline   Reply With Quote
Old 02-11-2012, 12:40 PM   #7
Join Date: Dec 2011
Posts: 56
On my 98 the switch operates the battery solenoids which disconnects the house batteries and for emergency start. The battery load center is located under the hood on the drivers side, black box mounted on fire wall. This is where the solenoids are that the switch controls. Send me a PM with your email address and I will send you a copy of load center pdf file.


rjdelapp is offline   Reply With Quote


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
6 volt questions wakamicamper RV Systems & Appliances 13 11-26-2010 08:45 AM
Fueling a Generator dverna iRV2.com General Discussion 6 09-18-2010 07:30 AM
Generator not getting fuel flow??? Doug017 RV Systems & Appliances 20 08-16-2010 04:47 PM
Actual Dog House (bow-wow!) For Generator SoundProofing! kctrading 5th Wheel Discussion 7 11-23-2008 10:04 AM
Generator Quirks Rusty Bear Alpine Coach Owner's Forum 7 05-23-2005 06:39 PM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:53 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.