Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > New Member Check-In
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 07-11-2015, 06:15 PM   #1
Junior Member
 
Monaco Owners Club
Join Date: Jul 2015
Location: Los Angeles, CA
Posts: 17
New Member With Chassis Battery Problem

Hi EV1 - I have a 2003 Monaco Signiture 40 ft. and the new chassis batteries went dead for some reason during my last local camping trip. Two roadside service companies couldn't jump start the 525 Cummins Diesel engine. A friendly camper had a battery charger which helped after 16 hours charging. My biggest question is does the Monaco generator charge the chassis batteries or only the house batteries?
__________________

__________________
EDZ SIG 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 07-11-2015, 06:36 PM   #2
Senior Member
 
Steve Ownby's Avatar
 
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,397
Quote:
Originally Posted by EDZ SIG View Post
Hi EV1 - I have a 2003 Monaco Signiture 40 ft. and the new chassis batteries went dead for some reason during my last local camping trip. Two roadside service companies couldn't jump start the 525 Cummins Diesel engine. A friendly camper had a battery charger which helped after 16 hours charging. My biggest question is does the Monaco generator charge the chassis batteries or only the house batteries?

My wife and I have lived in this same coach full time for 8 years now. It's a great coach.

If your Cummins is 525 hp then it's the ISX. That 15 liter engine requires about 1850 CCA to get a good crank so if the batteries aren't maintaining a good charge, it will struggle to crank.

The chassis batteries should charge from either the generator or shore power.

There is an electrical box on the curb side of the engine compartment. There is a large solenoid in there called a "Big Boy" it's controlled by the circuit board on the right side of the box, second board from the top. On shore or generator power this solenoid should be hot to the touch. When the circuit board sees about 13.2 VDC, it energizes the solenoid and both battery banks are tied together & both charge. The two big electrical lugs at the bottom on the Big Boy should measure over 13 VDC and be within a couple of tenths of a volt of each other.

If the Big Boy isn't energized under those conditions then you have a problem with either the Big Boy or the control board. In that case, call Monaco tech support and they can help you trouble shoot.


Steve Ownby
Full time since '07
__________________

__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
Steve Ownby is online now   Reply With Quote
Old 07-11-2015, 08:28 PM   #3
Junior Member
 
Monaco Owners Club
Join Date: Jul 2015
Location: Los Angeles, CA
Posts: 17
Thanks! I think I need to stay in touch as you obviously know more about my older Sig than I do. Service company that installed the new chassis batteries told me they checked all the charging systems and they were working. Good to know the generator should be able to charge the chassis batteries if everything is working OK. I have a meter but am not a Tech but this is good information. Might ask later about some other small repairs. The holding tank levels for the display in the dashboard Alladin System - now Silverleaf 330 done by the previous owner - stopped working and shows "0". The display at the water/sewer connections show valid numbers. Go figure!
__________________
EDZ SIG is offline   Reply With Quote
Old 07-12-2015, 04:52 AM   #4
Senior Member
 
Country Coach Owners Club
Retired Fire Service RVer's
Join Date: Feb 2013
Location: Ocala, Florida
Posts: 6,295
Welcome, glad to meet you!
__________________
FMCA #F431170, GS #822128658, Escapees SKP #112655
2012 Airstream Mercedes Interstate Class B
[SIGPIC][/SIGPIC]
Medico is offline   Reply With Quote
Old 07-12-2015, 08:07 AM   #5
Senior Member
 
hal1phx's Avatar


 
Join Date: Aug 2013
Location: Everywhere USA
Posts: 2,072
__________________
Hal & Jackie .... 03 TS Select 45DS01
02 Haulmark 20' Edge .... 02 Corvette Rdstr


Our Blog
hal1phx is offline   Reply With Quote
Old 07-13-2015, 05:24 PM   #6
Senior Member
 
denlock's Avatar
 
Newmar Owners Club
Spartan Chassis
Join Date: Feb 2005
Location: Sterling Heights, MI
Posts: 2,723
__________________
Tricia & Dennis Lockhart
2010 Ventana 4333
Spartan MM w/Cummins 360 ISC
denlock is offline   Reply With Quote
Old 07-13-2015, 07:07 PM   #7
Senior Member/RVM #90
 
MSHappyCampers's Avatar


 
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 26,338
Welcome to IRV2! We're sure glad you joined us!

Hope you get your problem solved quickly!

Good luck, happy trails, and God bless!
__________________
Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
MSHappyCampers is offline   Reply With Quote
Old 07-13-2015, 07:14 PM   #8
Senior Member
 
Mr_D's Avatar
 
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 28,508
Quote:
Originally Posted by Steve Ownby View Post
If your Cummins is 525 hp then it's the ISX. That 15 liter engine requires about 1850 CCA to get a good crank so if the batteries aren't maintaining a good charge, it will struggle to crank.
Our Magna has 4 - 925 CCA batteries and even then it's reluctant to kick off. Just replaced them last month and still doesn't crank over very well. I've seen reports of people going to Denso starters that have a gear reduction and they work great.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is online now   Reply With Quote
Old 07-13-2015, 07:16 PM   #9
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,971
Welcome to iRV2.

A few questions .
How long were you parked that the chassis batteries went down ?
Good batteries , well charged should go two to three weeks , given minor current draws for electronic memory, and still start the engine.
Were you dry camping ( running the gen set on occasion ) or hooked to power at a camp ground?
Were you using the dash radio , while parked?
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 07-14-2015, 11:36 AM   #10
Junior Member
 
Monaco Owners Club
Join Date: Jul 2015
Location: Los Angeles, CA
Posts: 17
We were parked for 5 days and only discovered the problem when we attempted to leave the campsite. The chassis batteries are essentially new and are still under warranty. We were plugged into shore power the whole time. It appears from other responses the shore power should have been continually charging the chassis batteries. I'm having the RV repair facility check the batteries and the charging system. We didn't use the dash radio while parked but the "radio" is a Panasonic display with AV inputs showing holding tank levels, shore power electrical legs, engine diagnostics, Radio, IPOD inputs, etc. and that is on 24/7. I believe this device is wired to the house batteries.
__________________

__________________
EDZ SIG is offline   Reply With Quote
Reply

Tags
battery, chassis, new member



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
Chassis stereo drains chassis battery when used for house RonInFlorida RV Systems & Appliances 7 05-26-2015 09:47 AM
Chassis battery voltage dropping, now 4 volts Shallow Class A Motorhome Discussions 22 09-17-2014 10:26 AM
Chassis Battery Location Maddog2020 National RV Owner's Forum 9 06-30-2014 11:32 AM
2012 Thor Ace 29.1 Chassis Battery ThorEvo1029 Thor Industries Owner's Forum 5 05-22-2014 09:51 PM
Chassis Battery reading .2V on monitor panel hookup Newmar Owner's Forum 14 05-13-2014 02:25 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:35 PM.


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