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

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Tiffin Owner's Forum
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 03-29-2023, 06:55 PM   #1
Join Date: May 2012
Posts: 87
electrial problem

2008 tiffin allegol no charge on chassie batterys but house battery charges
truck91 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free! 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 03-29-2023, 09:11 PM   #2
Senior Member
SamKVA's Avatar
Join Date: Sep 2015
Posts: 310
Many of us would really like to help you but more details of the coach would be very helpful.

2021 Tiffin Phaeton 40IH
2016 Jeep Wrangler JK Sport TOAD - Air Force One
SamKVA is online now   Reply With Quote
Old 03-30-2023, 05:08 AM   #3
Senior Member
Join Date: Jul 2014
Posts: 33,277
Most times the solenoid that controls bi-directional charging fails due to burnt contacts.
It's also the boost start solenoid so finding it is easy. Have someone push the boost button on and off while you listen for it clunking.

Yours may differ but it's the center solenoid in this picture. You can see that each battery positive goes to a side. While holding the boost switch, both sides should have equal voltage. Click image for larger version

Name:	Screenshot_20221111-033048_Google.jpg
Views:	13
Size:	23.9 KB
ID:	389195
twinboat is offline   Reply With Quote
Old 03-30-2023, 05:47 AM   #4
Senior Member
accsys's Avatar
Tiffin Owners Club
Freightliner Owners Club
Join Date: Mar 2007
Posts: 120
Tiffin put a one-amp trickle charger on the chassis batteries on coaches in that era. It was plugged in to an electrical outlet and a line runs to the chassis battery. Yours may have become unplugged, the charge line broken or failed entirely.

If your coach was not yours new, the previous owner has most likely done some modification by this time and the trickle charger thrown away. Most of us replaced that trickle charger with a Trik-L-Start or Amp-L-Start as they provided a higher current to keep the chassis batteries up to speed. Those units were normally hooked up to the charge solenoid located in one of the bays close to the batteries.
John and Doris
2007 Tiffin Phaeton 40 QDH, 2004 Jeep Liberty 4x4 BOTH NOW SOLD
accsys is offline   Reply With Quote
Old 03-31-2023, 05:16 AM   #5
Join Date: May 2012
Posts: 87
found add on fuse jumper and fuse was blown thanks for the help
truck91 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
Electrial problem with A/C outlets in kitchen jeflen Alpine Coach Owner's Forum 2 06-03-2019 07:37 AM
from gas additive to electrial question jastinjr Tiffin Owner's Forum 3 02-07-2013 11:32 AM
2006 Monaco Diplomat Electrial Diagram Bentley1 Monaco Owner's Forum 2 02-08-2012 01:32 PM
Electrial Protection....Advice Please NMBeemercouple Monaco Owner's Forum 3 04-09-2010 10:21 AM
Convection/Microwave Electrial Question Webster MH-General Discussions & Problems 8 03-01-2006 06:42 AM

» Featured Campgrounds

Reviews provided by

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

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.