Go Back   Thor Forums > Thor Tech Forums > Motorhome Tech Topics
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 02-22-2018, 09:04 PM   #1
Junior Member
 
Brand: Thor Motor Coach
Model: Tuscany 45LT
State: Texas
Posts: 12
Chassis Batteries

Just bought a 2014 Thor Tuscany 45LT
My manual states that on shore power my house and chassis batteries are being charged but my Chassis batteries keep going dead has any one else had this problem? Or know how to fix it thanks
__________________

GDCKEC is offline   Reply With Quote
Old 02-22-2018, 09:21 PM   #2
Senior Member
 
Tfryman's Avatar
 
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 1,545
What Charges the House & Chassis Batteries When
__________________

__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
Tfryman is offline   Reply With Quote
Old 02-22-2018, 09:39 PM   #3
Senior Member
 
TurnerFam's Avatar
 
Brand: Thor Motor Coach
Model: Palazzo 33.3 34'bunkhouse
State: North Carolina
Posts: 870
'when' are you noticing that this happens: when you are traveling frequently, or when you are parked for extended periods?
TurnerFam is offline   Reply With Quote
Old 02-22-2018, 09:56 PM   #4
Junior Member
 
Brand: Thor Motor Coach
Model: Tuscany 45LT
State: Texas
Posts: 12
We are living in it now has been in one place for a couple of weeks
GDCKEC is offline   Reply With Quote
Old 02-22-2018, 10:45 PM   #5
Senior Member
 
TyCreek's Avatar
 
Brand: Thor Motor Coach
Model: Axis 24.2
State: Idaho
Posts: 474
If your converter (charger) is working properly (on shore power) it will charge the coach batteries first. Then if the BIRD is wired and working properly, the charge current will relay charger output to the chassis battery. Sounds like the switch to the chassis battery isn't happening. Is the chassis battery good? A bad battery can cause a no switch condition. Chasing down BIRD wiring can be a PITA but if the batteries are otherwise good you at least know where the problem is.
__________________
Axis 24.2 "was" tug'n a JK
TyCreek is offline   Reply With Quote
Old 02-22-2018, 11:03 PM   #6
Senior Member
 
TurnerFam's Avatar
 
Brand: Thor Motor Coach
Model: Palazzo 33.3 34'bunkhouse
State: North Carolina
Posts: 870
how do you know that they are 'going dead'? are you trying to crank it while you are still parked? what gives away that they are 'dead batteries'?
TurnerFam is offline   Reply With Quote
Old 02-22-2018, 11:29 PM   #7
Junior Member
 
Brand: Thor Motor Coach
Model: Tuscany 45LT
State: Texas
Posts: 12
The satellite system and steps run off chassis battery discovered batteries dead when they stop working
GDCKEC is offline   Reply With Quote
Old 02-22-2018, 11:31 PM   #8
Junior Member
 
Brand: Thor Motor Coach
Model: Tuscany 45LT
State: Texas
Posts: 12
Maybe I need to disconnect batteries and test them , as soon as start motor batteries show fully charged,Thanks
GDCKEC is offline   Reply With Quote
Old 02-22-2018, 11:37 PM   #9
Senior Member
 
TurnerFam's Avatar
 
Brand: Thor Motor Coach
Model: Palazzo 33.3 34'bunkhouse
State: North Carolina
Posts: 870
I'm amazed that your Sat, or even the steps, operate off the CHASSIS batteries... are you sure? That's a strange setup for a new coach, especially since a sat system(antenna, receiver, etc) uses 120v power, not 12v, at least not typically. What sat system is it? is it original to the coach?
TurnerFam is offline   Reply With Quote
Old 02-23-2018, 12:03 AM   #10
Senior Member
 
Tfryman's Avatar
 
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 1,545
Quote:
Originally Posted by GDCKEC View Post
Maybe I need to disconnect batteries and test them , as soon as start motor batteries show fully charged,Thanks
You realize "start motor batteries" are chassis batteries?
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
Tfryman is offline   Reply With Quote
Old 02-23-2018, 01:20 AM   #11
Senior Member
 
Brand: Thor Motor Coach
Model: Vegas 25.2
State: Missouri
Posts: 669
It is an adventure with our VEGAS to get the chassis battery to charge from Shore power. The other day, started the generator, and when I killed the genny and went back to shore power I noticed the chassis battery was at 12.6 volts. Disconnected shore power, started the coach (alternator was charging at 14+ v as it should). Then killed the engine, reapplied shore power and abracadabra chassis was charging at 13.6 dropping to 13.2 as it should.

It is amazing the combinations sometimes of turning on, turning off, and connecting to get the chassis batteries to charge on shore power. Glad I have voltage readouts on the batteries to quickly check them.
Mo_Mike is offline   Reply With Quote
Old 02-23-2018, 01:28 AM   #12
Senior Member
 
Brand: Thor Motor Coach
Model: 2016 Quantum WS31
State: Washington
Posts: 558
"It is amazing the combinations sometimes of turning on, turning off, and connecting to get the chassis batteries to charge on shore power. Glad I have voltage readouts on the batteries to quickly check them."

I hope you don't have to stand on one foot and touch your nose in the future to make it work. LOL
__________________
Pat, Becky & Tessa(our Yorkie)
Wenatchee, WA
99dart is offline   Reply With Quote
Old 02-23-2018, 11:12 AM   #13
Senior Member
 
JamieGeek's Avatar
 
Brand: Thor Motor Coach
Model: Axis 24.1
State: Michigan
Posts: 6,554
Quote:
Originally Posted by Mo_Mike View Post
It is an adventure with our VEGAS to get the chassis battery to charge from Shore power. The other day, started the generator, and when I killed the genny and went back to shore power I noticed the chassis battery was at 12.6 volts. Disconnected shore power, started the coach (alternator was charging at 14+ v as it should). Then killed the engine, reapplied shore power and abracadabra chassis was charging at 13.6 dropping to 13.2 as it should.

It is amazing the combinations sometimes of turning on, turning off, and connecting to get the chassis batteries to charge on shore power. Glad I have voltage readouts on the batteries to quickly check them.
Are you waiting long enough? The BIRD doesn't switch over charging right away, it waits a few minutes before closing when 120V is present (regardless of the source).
__________________
2014 Thor Axis 24.1
2016 C-Max Energi
2018 Chevy Bolt
blog - https://spareelectrons.wordpress.com/
JamieGeek is offline   Reply With Quote
Old 02-23-2018, 12:33 PM   #14
Senior Member
 
Oneilkeys's Avatar
 
Brand: Thor Motor Coach
Model: 2016 Axis 24.1
State: Florida
Posts: 1,837
Quote:
Originally Posted by JamieGeek View Post
Are you waiting long enough? The BIRD doesn't switch over charging right away, it waits a few minutes before closing when 120V is present (regardless of the source).
True about the Trombetta not opening the BIRD for a minute or two, but for clarity, 120v never reaches the BIRD. When the BIRD senses 13.8v or more from either the alternator (chassis battery) or convert/charger (shore power or generator) it opens the Trombetta.
Oneilkeys is offline   Reply With Quote
Old 02-23-2018, 01:44 PM   #15
Senior Member
 
TyCreek's Avatar
 
Brand: Thor Motor Coach
Model: Axis 24.2
State: Idaho
Posts: 474
Example info/spec sheet that might be similar to your coach: https://www.intellitec.com/assets/pd...-01000-000.pdf
__________________
Axis 24.2 "was" tug'n a JK
TyCreek is offline   Reply With Quote
Old 02-23-2018, 02:28 PM   #16
Senior Member
 
Oneilkeys's Avatar
 
Brand: Thor Motor Coach
Model: 2016 Axis 24.1
State: Florida
Posts: 1,837
Quote:
Originally Posted by TyCreek View Post
Example info/spec sheet that might be similar to your coach: https://www.intellitec.com/assets/pd...-01000-000.pdf
Iíve posted this before (good idea to post it again) but seeing it, I realize where I got the impression that the emergency start switch did not open the Trombetta but connected the coach batteries directly to the chassis battery bypassing the Trombetta. I donít know if the Axis is actually wired this way. This is a generic diagram.
Oneilkeys is offline   Reply With Quote
Old 02-23-2018, 02:38 PM   #17
Junior Member
 
Brand: Thor Motor Coach
Model: Tuscany 45LT
State: Texas
Posts: 12
Yes I know chassis batteries start motor , they are the ones not charging on shore
GDCKEC is offline   Reply With Quote
Old 02-23-2018, 03:53 PM   #18
gmc
Senior Member
 
gmc's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 32A
State: Florida
Posts: 1,479
Quote:
Originally Posted by TurnerFam View Post
I'm amazed that your Sat, or even the steps, operate off the CHASSIS batteries... are you sure? That's a strange setup for a new coach, especially since a sat system(antenna, receiver, etc) uses 120v power, not 12v, at least not typically. What sat system is it? is it original to the coach?
Quote:
Originally Posted by GDCKEC View Post
The satellite system and steps run off chassis battery discovered batteries dead when they stop working
While Satellite would surprise me - steps do not... They must always extend when door opens - and always retract when ignition on (and door closed) - so can't be on a use/store switch with the coach batteries...
My steps are connected to chassis battery.
__________________
Greg
Not yet retired...
Florida (Michigan transplant)
2014 Hurricane 32A
2000 Infinity (previous)
gmc is offline   Reply With Quote
Old 02-23-2018, 05:03 PM   #19
Senior Member
 
Tfryman's Avatar
 
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 1,545
Quote:
Originally Posted by Oneilkeys View Post
True about the Trombetta not opening the BIRD for a minute or two, but for clarity, 120v never reaches the BIRD. When the BIRD senses 13.8v or more from either the alternator (chassis battery) or convert/charger (shore power or generator) it closes the Trombetta.
FTFY A switch or relay has to be closed to allow current flow.
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
Tfryman is offline   Reply With Quote
Old 02-23-2018, 06:54 PM   #20
Senior Member
 
TyCreek's Avatar
 
Brand: Thor Motor Coach
Model: Axis 24.2
State: Idaho
Posts: 474
Quote:
Originally Posted by Oneilkeys View Post
Iíve posted this before (good idea to post it again) but seeing it, I realize where I got the impression that the emergency start switch did not open the Trombetta but connected the coach batteries directly to the chassis battery bypassing the Trombetta. I donít know if the Axis is actually wired this way. This is a generic diagram.
It's the verbal description that I felt might help...
Even if that monster rig has a different control set, the functional behaviors would likely be quite similar. Notably the fail safe switching for times like the converter being heavily loaded like if somebody leaves their inverter on by accident.
__________________

__________________
Axis 24.2 "was" tug'n a JK
TyCreek is offline   Reply With Quote
Reply

Thread Tools
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


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 06:11 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2