 |
|
12-08-2020, 02:47 PM
|
#1
|
|
Junior Member
Brand: Thor Motor Coach
Model: Citation Sprinter 24ST
State: Arizona
Posts: 10
THOR #20892
|
house battery not charging
2018 Thor Citation Sprinter 24ST. Engine alternator not charging house battery. New house battery charges fine with solar and external 110V. Where is the solenoid/isolator located? How is it controlled?
__________________
|
|
|
|
12-08-2020, 03:19 PM
|
#2
|
|
I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
|
Do you have your "Use/Store" switch set to "Use" (or perhaps "On")?
That control panel is normally located by the entrance into the coach ( next to the stairs)
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
|
|
|
|
|
12-08-2020, 05:53 PM
|
#3
|
|
Junior Member
Brand: Thor Motor Coach
Model: Citation Sprinter 24ST
State: Arizona
Posts: 10
THOR #20892
|
There are three sources of 12v DC to charge the house battery. Solar, converter
(110v-12v) and chassis generator. How is the switch made?
__________________
|
|
|
|
|
12-08-2020, 06:54 PM
|
#4
|
|
Junior Member
Brand: Thor Motor Coach
Model: Citation Sprinter 24ST
State: Arizona
Posts: 10
THOR #20892
|
Bob, There is a switch there but it is labeled "Main Power". It kills the 12v power to the entire house.
__________________
|
|
|
|
|
12-08-2020, 07:21 PM
|
#5
|
|
I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
|
That needs to be "On"; in order to charge the batteries. 
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
|
|
|
|
|
12-08-2020, 09:30 PM
|
#6
|
|
Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,360
THOR #7035
|
Quote:
Originally Posted by rolds105
2018 Thor Citation Sprinter 24ST. Engine alternator not charging house battery. New house battery charges fine with solar and external 110V. Where is the solenoid/isolator located? How is it controlled?
|
On a Mercedes chassis the engine alternator does not charge the house batteries. One of Mercedes' requirements. You will have to add a cross-connect if you want that feature.
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
|
|
|
|
|
12-08-2020, 09:58 PM
|
#7
|
|
I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
|
Actually... It's a one-way deal. 
The alternator (at least in mine) provides charge to the house batteries; but shore power and generator power do not make their way up to the chassis battery.
__________________
|
|
|
|
|
12-08-2020, 11:32 PM
|
#8
|
|
Senior Member
Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,884
THOR #6826
|
You can add a small device called a Trik-L-Start charger that will use the house battery to keep the chassis battery charged. Obviously it would not be especially helpful if you are not keeping your house batteries charged but it’s easier than using multiple chargers and worrying about it. I added it when I put my solar maintainer on my house batteries. Now my small solar system is able to keep all of my batteries ready to go even in long storage.
__________________
|
|
|
|
|
12-08-2020, 11:35 PM
|
#9
|
|
I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
|
Pete,
Where do you find those?
__________________
|
|
|
|
|
12-08-2020, 11:51 PM
|
#10
|
|
Senior Member
Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,884
THOR #6826
|
Quote:
Originally Posted by Bob Denman
Pete,
Where do you find those?
|
http://www.bestconverter.com/TRIK-L-START_c_210.html
__________________
|
|
|
|
|
12-09-2020, 12:02 AM
|
#11
|
|
I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
|
 Cool...
__________________
|
|
|
|
|
12-09-2020, 02:38 PM
|
#12
|
|
Junior Member
Brand: Thor Motor Coach
Model: Citation Sprinter 24ST
State: Arizona
Posts: 10
THOR #20892
|
House battery charging on a Mercedes chassis
16ACE27 is correct as confirmed by Thor customer support.
On a Mercedes chassis a Battery Isolation Manager (BIM) made by Precision Circuits Inc can be implemented. The BIM isolates the two battery systems, chassis and coach, in a motorhome. This prevents loads in one system from discharging both. It also connects the two battery systems together during charging. Both batteries are charged if either is being charged. The coach battery is charged while driving and the chassis battery is charged while plugged into shore power at a campground.
www.PrecisionCircuitsinc.com
__________________
|
|
|
|
|
12-09-2020, 03:04 PM
|
#13
|
|
I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
|
Aha! I see the discrepancy...
I've got a Tiffin!
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
|
|
|
|
|
12-09-2020, 03:35 PM
|
#14
|
|
Junior Member
Brand: Thor Motor Coach
Model: Citation Sprinter 24ST
State: Arizona
Posts: 10
THOR #20892
|
House and chassis battery charging on a Mercedes chassis
I'll get this right someday. The chassis alternator can charge the house battery, but the chassis battery cannot be charged by the house unless the BIM is installed. Attached is a battery diagram for the Mercedes chassis. Ref attached diagram.
The isolator solenoid is activated by the chassis battery. When this solenoid detects a charge coming FROM the chassis alternator, it will be activated and allow for the house batteries to charge, (with the house disconnect switch engaged of course). The house cannot charge the chassis through this solenoid. That would require a Bi-Directional Relay/BIM, which under the current agreement between Thor Motor Coach and Mercedes, is not allowed to be installed by TMC.
__________________
|
|
|
|
|
12-09-2020, 03:43 PM
|
#15
|
|
I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
|
When mine is just sitting in the yard: I hook the chassis battery up to a 40 watt solar panel charger...
https://www.thorforums.com/forums/at...1&d=1607528619
__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
|
|
|
|
|
12-12-2020, 07:39 PM
|
#16
|
|
Junior Member
Brand: Thor Motor Coach
State: New Mexico
Posts: 11
THOR #16383
|
Do you have the Ford or Mercedes chasis?
__________________
|
|
|
|
|
12-12-2020, 07:42 PM
|
#17
|
|
I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
|
Merc...
__________________
|
|
|
|
|
12-12-2020, 07:49 PM
|
#18
|
|
Junior Member
Brand: Thor Motor Coach
State: New Mexico
Posts: 11
THOR #16383
|
It’s not true that the Mercedes isn’t built to charge house batteries. We have a 2014 24SR. When we started having trouble with the batteries we started doing troubleshooting and fortunately founf the Trombetta before Thor told us there wasn’t one. Ours is under the drivers seat. Yes, you have to pull the whole seat out. There is a thin wire you need to disconnect. It connects airbags and seatbelts. Don’t damage it, it’s expensive! We found that the connection from the chassis battery to the EK1 (?) bridge was loose.
__________________
|
|
|
|
|
12-12-2020, 07:58 PM
|
#19
|
|
Junior Member
Brand: Thor Motor Coach
State: New Mexico
Posts: 11
THOR #16383
|
Under Drivers seat. Trombetta is on the right
__________________
|
|
|
|
|
12-12-2020, 07:59 PM
|
#20
|
|
I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
|
Ours does... but it's a one-way street: RV power doesn't charge the chassis battery. 
__________________
|
|
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
|
Linear Mode
