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.
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 10-23-2017, 07:13 PM   #1
Senior Member
 
Join Date: May 2008
Location: Novi, MI
Posts: 363
Not Charging House Batteries With Engine

While travelling from Michigan to Florida, the house batteries would loose charge. The frig would run the batteries down. Plugged into shore power, the house batteries would get charged. With the generator running, the house batteries would get charged. While driving down the road, the toad battery would get charged from the motor home. Any idea as to what to look for as the cause of the engine alternator not charging the house batteries?
__________________

novi2some 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 10-23-2017, 07:23 PM   #2
Senior Member
 
Join Date: Sep 2012
Posts: 8,055
Yes, common problem. Post model and year for correct answer. It varies.
__________________

nothermark is offline   Reply With Quote
Old 10-23-2017, 07:29 PM   #3
Senior Member
 
Join Date: May 2008
Location: Novi, MI
Posts: 363
It is a 2014 Phaeton 40 QBH.
novi2some is offline   Reply With Quote
Old 10-24-2017, 05:54 AM   #4
Senior Member
 
Join Date: Sep 2012
Posts: 8,055
I think Tiffin uses a BIRD system to control charging of the house batteries when the main engine is running. It senses the voltages involved to let the main batteries come back up from starting the engine then connects the house and chassis batteries together via a big relay to charge the house as it needs it. The problem is probably the relay but could be the sensing on the control board.

I hoped somebody from the Tiffin group would pick up this thread as they could give you specific information as to location and maybe test points. I cannot as I don't have a Tiffin. This message should give you another bump to see if somebody picks up on it or you can call Tiffin for advice. There might be a thread already in the Tiffin group. As I said, the problem is common.
nothermark is offline   Reply With Quote
Old 10-24-2017, 06:05 AM   #5
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 7,043
Sorry I can't help with your specific setup.

Try this if possible. Turn the ignition switch to the run position and without starting the rv, toggle the emergency start button. This will take two people.

Hopefully you will hear a clunk on and off as your assistant cycles the switch. And be sure to not be connected to shoreline or have the generator running.

If you can hear the clunk, find the "solenoid" or at least very close to it and post a picture. It is an easy device to diagnose and change.

I have included a picture of the search function that is overlooked often. The google search function has the IRV2 box ticked and will sort things out quite well. You will get lots of information using that. I did some searching and found some interesting reading.
Attached Thumbnails
Click image for larger version

Name:	search feature.jpg
Views:	75
Size:	40.0 KB
ID:	180829  
__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old 10-25-2017, 09:49 AM   #6
Senior Member
 
Tiffin Owners Club
Winnebago Owners Club
Join Date: Feb 2012
Location: Las Cruces, NM
Posts: 3,544
Quote:
Originally Posted by nothermark View Post
I think Tiffin uses a BIRD system to control charging of the house batteries when the main engine is running. It senses the voltages involved to let the main batteries come back up from starting the engine then connects the house and chassis batteries together via a big relay to charge the house as it needs it. The problem is probably the relay but could be the sensing on the control board.

I hoped somebody from the Tiffin group would pick up this thread as they could give you specific information as to location and maybe test points. I cannot as I don't have a Tiffin. This message should give you another bump to see if somebody picks up on it or you can call Tiffin for advice. There might be a thread already in the Tiffin group. As I said, the problem is common.
Tiffin does not use the BIRD system. They do however, use a charging relay. This relay is mounted in the battery compartment on driver's side of the coach. You best bet is to call Tiffin Service and ask them how to check it and what to replace it with. If you are not comfortable working it yourself, get a mobile repair person or take it to a shop that has some experience with Tiffin electrical systems.
__________________
Roger & Mary
2017 Winnebago Navion 24V
2014 Tiffin Phaeton 36GH (Sold)
luvlabs is offline   Reply With Quote
Old 10-25-2017, 12:51 PM   #7
Senior Member
 
Join Date: May 2008
Location: Novi, MI
Posts: 363
Thanks. I will contact Tiffin.
novi2some is offline   Reply With Quote
Old 10-28-2017, 05:35 AM   #8
Senior Member
 
Tiffin Owners Club
Appalachian Campers
Mid Atlantic Campers
Coastal Campers
Freightliner Owners Club
Join Date: Jan 2015
Posts: 1,615
There are two fuses, one in the rear power bay, and one in the front power bay with the charge relay, which you need to check. They are big black fuses with a cover. See my attached diagram, they are shown on either side of the charge relay. I carry a spare fuse which I ordered jic off Amazon, but you could probably get at Napa or other store if in immediate need by calling around. Mine are Bussman 400 amps and I would suspect yours are the same, but could be either another manufacturer or 300amps. The fuses are marked with mfg and amperage, which you'll see when you open the top cover.

With your described symptoms, the problem is either one of the fuses (most likely), or the charge solenoid itself not working (less likely). Either one are easy fixes.

You can easily check with a cheap digital DC voltmeter. With engine off and batteries at rest, the charge solenoid will be disengaged. You should have somewhere around 12.5 volts on each battery side connection of the fuses. If the fuse is good, you should also have the same voltage on the other side of the fuse. If you don't, the fuse is burnt, replace it (after disconnecting the applicable battery bank from power).

If both fuses turn out to be okay, then verify the the respective voltages are on the big terminals of the charge solenoid. Then start the engine and the chassis voltage should jump up to about 13.5 or more (showing the alternator is charging the chassis battery). The charge solenoid will engage, which should then provide that same 13.5+ voltage on the terminal going to the house batteries. If it doesn't, your charge solenoid isn't working.

I'm not at my coach to get the specific fuse, but it will look something like this (inside the cover):
https://www.amazon.com/400A-ANN-400A.../dp/B00TUV2EHM
Attached Thumbnails
Click image for larger version

Name:	Electrical Alternator charging house batteries.PNG
Views:	175
Size:	102.8 KB
ID:	181258   Click image for larger version

Name:	Fuses.PNG
Views:	88
Size:	19.6 KB
ID:	181261  

__________________
DaveB, Raleigh, NC
2015 Tiffin RED 33AA, w/Honda CRV
VMSpc, Magnum BMK/ARC50
Kiawah is offline   Reply With Quote
Old 10-28-2017, 09:55 AM   #9
Senior Member
 
Join Date: May 2008
Location: Novi, MI
Posts: 363
Thanks. I'll check it out.
__________________

novi2some is offline   Reply With Quote
Reply

Tags
batteries, charging, engine, house batteries



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
Engine batteries not charging house batteries. Fordphares Palazzo Motorhomes 20 07-21-2017 05:32 PM
2000 Holiday Rambler house batteries not charging from engine nhcouple Monaco Owner's Forum 2 01-22-2015 08:33 AM
Engine battery not charging house batteries belizeanbus RV Systems & Appliances 12 12-08-2014 02:43 PM
cat engine not charging house batteries MBMyers National RV Owner's Forum 1 07-07-2013 10:57 PM
Engine not charging House Batteries BBBEEBOP Winnebago Industries Owner's Forum 1 05-20-2010 02:24 PM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:55 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.