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06-25-2023, 06:47 PM
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#1
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Junior Member
Brand: Thor Motor Coach
State: Utah
Posts: 6
THOR #30076
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Thor Axis 27.7 “over-voltage” error
Hi there. New owner and new to forum. On the road right now, and I get an error on my BMPro “over-voltage detected”.See attachment if it worked. It disables everything on the panel and app on the phone. I’ve googled this error and can’t find anything that can help a stranded rv’r. I can’t move the slides in, turn lights on, etc….basically can’t move.
I tried unhooking shore power. Tried generator. Turned off the main switch. Checked the breakers. Help!
2021 Thor Axis 27.7
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06-26-2023, 12:39 AM
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#2
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Junior Member
Brand: Thor Motor Coach
State: Utah
Posts: 6
THOR #30076
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Solution
Disconnect all shoreline, shut off main breaker, disconnect solar, and then…..disconnect negative connection to batteries. Everything resets and all is good.
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06-27-2023, 03:08 PM
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#3
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Junior Member
Brand: Thor Motor Coach
State: Utah
Posts: 6
THOR #30076
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Anyone know what’s causing it?
Anyone have any ideas on what is causing this? It continues to get this error and I have to unhook the batteries every time to reset.
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06-27-2023, 03:13 PM
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#4
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Senior Member
Brand: Thor Motor Coach
Model: Tuscany 40ex
State: Ohio
Posts: 455
THOR #12726
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Either alternator or charger/ inverter is over charging
Are the batteries getting hot or boiling?
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06-27-2023, 03:39 PM
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#5
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Junior Member
Brand: Thor Motor Coach
State: Utah
Posts: 6
THOR #30076
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Quote:
Originally Posted by simidrm
Either alternator or charger/ inverter is over charging
Are the batteries getting hot or boiling?
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Thanks for the info. Batteries are not getting hot
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06-27-2023, 03:51 PM
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#6
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Senior Member
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 6,925
THOR #13932
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IF voltage warning is adjustable, and it should be,
Find it and raise it on you app or your inverter.
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06-27-2023, 07:29 PM
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#7
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 25.6
State: New Mexico
Posts: 5,126
THOR #20220
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Please let us know your solution 
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LAS CRUCES 2020 Thor Vegas 25.6
Lora & George. Golden Retriever & Multi-Gen Australian labradoodle & new ALD in March. Happy Campers!! E Biking, Hiking, Tennis, Scuba,Fishing,Cross Country Skiing, Snowshoeing. Retired H.S. Principal, Sr. IT Engineer, Life & Health Insurance Agent
"Today is a Gift and Why it is called the Present"
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06-27-2023, 08:42 PM
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#8
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,356
THOR #7035
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Quote:
Originally Posted by DanL
Anyone have any ideas on what is causing this? It continues to get this error and I have to unhook the batteries every time to reset.
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Put a voltmeter on the batteries to see what the actual voltage is. Then you can know to troubleshoot a faulty sensor or a faulty charger.
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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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07-05-2023, 07:06 PM
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#9
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Junior Member
Brand: Thor Motor Coach
State: Utah
Posts: 6
THOR #30076
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Still getting it. The batteries voltage is fine. I’m sure it’s with the inverter/converter although I have no idea where it’s located or if it has a reset switch. Any other advice is much appreciated.
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07-07-2023, 01:05 PM
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#10
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Senior Member
Brand: Thor Motor Coach
Model: 2011 FW Hurricane 33T
State: England
Posts: 1,295
THOR #16471
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Do you have a panel inside and does it show the same? Manuals indicate there is a "reset" button on the main controller panel.
Looking at the screenshot, you have the msg on the "Tanks" section, I am thinking it is indicating the two tank sensors are giving the warning. I would expect a Battery Overvoltage would be indicated in the "Battery" section?
And that screen is not indicating which tanks are which (three) and all three are showing "Full", is that the case?
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