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04-04-2018, 01:17 AM
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#1
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Senior Member
Brand: Still Looking
Model: Fleetwood Flair 31E
State: New York
Posts: 323
THOR #2025
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House Batteries not charging
Hey guys,
My house batteries were charging fine while on shore power. Now they are not.
Any ideas?
When the engine is on... the alternator charges the house batteries fine.
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04-04-2018, 01:30 AM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: Challenger 37TB
State: Kentucky
Posts: 1,032
THOR #1020
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Not familiar with Axis but there must be some similarities. On the Challenger system on shore power, there is an Automatic Transfer Switch that senses power from either the on-board generator or 110. On shore power, the converter/charger is next. If you are plugged into shore power, the converter/charger should be on. The power goes from there to your battery bank. The converter/charger has a breaker and a fuse. I'd check them first. If they are working, I'd next check to make sure that the converter has power. If so, then check to see if the converter has voltage coming out.
I spent a fair amount of time troubleshooting our system. The principles should be the same with your system.
Here is the link to my epistle. http://www.thorforums.com/forums/f8/...sue-10928.html
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US Army Retired - Loving The Road Trip
Challenger 37TB
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04-04-2018, 01:31 AM
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#3
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Axis/Vegas Enthusiast
Brand: Thor Motor Coach
Model: Axis 24.4
State: Michigan
Posts: 9,837
THOR #1150
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Quote:
Originally Posted by rvfigs
Hey guys,
My house batteries were charging fine while on shore power. Now they are not.
Any ideas?
When the engine is on... the alternator charges the house batteries fine.
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Is your use/store switch in store?
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04-04-2018, 01:38 AM
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#4
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Senior Member
Brand: Still Looking
Model: Fleetwood Flair 31E
State: New York
Posts: 323
THOR #2025
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Use mode..
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Always Tinker 
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04-04-2018, 01:39 AM
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#5
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Senior Member
Brand: Still Looking
Model: Fleetwood Flair 31E
State: New York
Posts: 323
THOR #2025
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Could it be the 50 amp fuse next to the batteries?
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Always Tinker
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04-04-2018, 01:50 AM
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#6
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,329
THOR #7035
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Quote:
Originally Posted by rvfigs
Could it be the 50 amp fuse next to the batteries?
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Not if it charges by the alternator. If in USE and no charging by SP you need to check you Converter breaker and fuses.
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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
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04-04-2018, 02:09 AM
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#7
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Senior Member
Brand: Still Looking
Model: Fleetwood Flair 31E
State: New York
Posts: 323
THOR #2025
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Quote:
Originally Posted by Tfryman
Not if it charges by the alternator. If in USE and no charging by SP you need to check you Converter breaker and fuses.
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Let me double check this. Thanks for the reply.
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Always Tinker
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04-04-2018, 02:18 AM
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#8
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Senior Member
Brand: Thor Motor Coach
Model: Challenger 37TB
State: Kentucky
Posts: 1,032
THOR #1020
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rvfigs - gotta say that if it the charging stopped completely, I'd almost guess that it is a fuse or a breaker. I looked on the page #2 of the attached wiring diagram, there is a resettable breaker on the inbound side from the converter. If all of these are working properly, almost certainly is the converter/charger.
Here is the wiring diagram from my original post.
__________________
US Army Retired - Loving The Road Trip
Challenger 37TB
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04-05-2018, 12:48 AM
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#9
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Senior Member
Brand: Still Looking
Model: Fleetwood Flair 31E
State: New York
Posts: 323
THOR #2025
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Everything working well now. Thanks a million fellas!
__________________
Always Tinker
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04-05-2018, 12:50 AM
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#10
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Senior Member
Brand: Thor Motor Coach
Model: Challenger 37TB
State: Kentucky
Posts: 1,032
THOR #1020
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rvfigs - what wound up being the problem? Hopefully it was something simple.
__________________
US Army Retired - Loving The Road Trip
Challenger 37TB
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04-05-2018, 01:00 AM
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#11
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Senior Member
Brand: Still Looking
Model: Fleetwood Flair 31E
State: New York
Posts: 323
THOR #2025
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I "assumed" that the fuse panel would indicate with a red light when a fuse was bad...like most of the fuses. There where two 40 amp fuses that didn't have a red indicator light. When I pull them...I realized how much of a dummy I was. Both were toast.
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Always Tinker
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04-05-2018, 01:00 AM
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#12
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Senior Member
Brand: Still Looking
Model: Fleetwood Flair 31E
State: New York
Posts: 323
THOR #2025
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Now I need to work on my vent fans. Both do not work.
__________________
Always Tinker
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04-05-2018, 01:03 AM
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#13
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Senior Member
Brand: Thor Motor Coach
Model: Challenger 37TB
State: Kentucky
Posts: 1,032
THOR #1020
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Yep - I feel your pain. Had a similar issue with the Rapid Camp module. It was not wired according to diagram. Won't tell you how long and hard I worked or how many pieces I had apart. Moral to the story, check everyone of the fuses and breakers FIRST with a multimeter.
Glad it all worked out.
__________________
US Army Retired - Loving The Road Trip
Challenger 37TB
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04-05-2018, 01:06 AM
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#14
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Senior Member
Brand: Still Looking
Model: Fleetwood Flair 31E
State: New York
Posts: 323
THOR #2025
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I just overthink things too much. Thanks for all your help. I really appreciate it!
__________________
Always Tinker
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04-05-2018, 01:39 AM
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#15
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Senior Member
Brand: Thor Motor Coach
Model: Challenger 37TB
State: Kentucky
Posts: 1,032
THOR #1020
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Looking at the diagram I put yesterday, you can see the 12v fans on the ceiling. Not sure what circuit they are on though.
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US Army Retired - Loving The Road Trip
Challenger 37TB
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