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Old 08-08-2021, 05:22 PM   #1
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State: Florida
Posts: 2
THOR #23590
Trickle charge/auto generator

2019 Thor Tuscany 40RT. Solar panels trickle charge the batteries, inverter powers refrigerator, auto generator mode recharges the batteries below 12.7 volts…

I entered the rig after 2 weeks unattended. Everything is dead. Engine fires up, hooked up to shore power and nothing powers on.

Any suggestions would be great.

Thanks

Rob

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Old 08-08-2021, 05:45 PM   #2
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Brand: Thor Motor Coach
Model: Chateau 24F
State: Ohio
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THOR #16721
House batteries fuse tripped? Sounds like a fuse/breaker problem. Does generator start?
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Old 08-08-2021, 06:03 PM   #3
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Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 9,770
THOR #7035
Quote:
Originally Posted by Flyboy2112 View Post
2019 Thor Tuscany 40RT. Solar panels trickle charge the batteries, inverter powers refrigerator, auto generator mode recharges the batteries below 12.7 volts

I entered the rig after 2 weeks unattended. Everything is dead. Engine fires up, hooked up to shore power and nothing powers on.

Any suggestions would be great.

Thanks

Rob
WUT?

A fully charged FLA battery at no load is 12.6 VDC. Why would the AGS be set so high?

So it sounds like your USE/STORE (battery disconnect) latching relay is open and the batteries died due to the generator running (fuel pump). Withe the house batteries completely dead you can't close the latching relay and you can't start the generator. The engine MAY charge the house batteries enough to close the latching relay after some period of time IF the BIRD/BIM can close the crossover connection.
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