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Old 05-02-2021, 05:55 PM   #1
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Brand: Thor Motor Coach
State: California
Posts: 7
THOR #5234
Electrical Issues

I have a 2016 Thor Tuscany and have recently been experiencing electrical issues. I am beyond ignorant on the subject so any help would be greatly appreciated!!

I first noticed the inverter wasn't turning on while driving, then had the whole electrical system shut down briefly while driving, then turning right back on. Then I noticed the AGS would only run once, then not continue. I just replaced all the batteries, chassis and coach. Last weekend i was plugged into 50 amp for 3 days. After unplugging the coach it wouldn't start. Freightliner suggested I turn off battery disconnect for 15 minutes. Coach fired right up! When I returned the coach to storage I turned on the generator and it shut down after 10 seconds...had to use AUX start to turn it on.

I'm not sure how it's all related! Once again any help would be appreciated!!

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Old 05-02-2021, 06:50 PM   #2
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Brand: Thor Motor Coach
State: Missouri
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THOR #6903
Does the inverter pilot light when you press the button?

Does the inverter work when off shore power?

Have you checked your Trombetta solenoid?

Was the charger turned on while on shore power three days?

The only way turning off the Chassis Battery disconnect would have helped is if your house batteries were dead due to not having the charger turned on
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Old 05-02-2021, 08:26 PM   #3
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Brand: Thor Motor Coach
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THOR #5234
Thank you for responding!

The light does turn on and it does work when off of shore power. Could it be that the AGS wasn't working because I didn't allow the charger to get to the batteries to the proper level?

I guess I was under the impression that the charger/inverter turned on automatically...does it not?

Not sure what the Trombetta solenoid is?!
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Old 05-02-2021, 08:49 PM   #4
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Brand: Thor Motor Coach
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THOR #6903
Which Tuscany model do you own?

Trombetta solenoid connects your house and chassis batteries

Inverter switches usually have to be turned on after a complete power down such as a battery exchange

Charger and Inverter

Trombetta solenoid can easily be checked with your VOM

Or by holding in the dash battery switch while someone watches the voltage display
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Old 05-02-2021, 08:55 PM   #5
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Brand: Thor Motor Coach
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THOR #5234
It's a TUSCANY XTE 34ST...
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