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Old 06-14-2021, 01:44 AM   #1
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Brand: Thor Motor Coach
Model: Hurricane /four seasons
State: Pennsylvania
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THOR #14567
12 Power issue

when on shore power all 12V things work, when no shore power nothing works

Battery is brand new

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Old 06-14-2021, 02:09 AM   #2
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Go back and read your post and then try posting it again so it makes sense:

Quote:
with out shore power, most nothing else 12volt works
Quote:
slides do, step does,
Quote:
I just can run things like lights , furnace, fridge light, water pump, like boon docking.
That's the way its supposed to work.

Quote:
with out shore power , nothing working
completely contradicts what you just said.
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Old 06-14-2021, 03:58 AM   #3
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Quote:
Originally Posted by bedbug123 View Post
when on shore power all 12V things work, when no shore power nothing works

Battery is brand new
Make sure your use/store switch is in the use position, check your "new" battery with a volt meter, should read more than 12volts DC.
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Old 06-14-2021, 04:24 AM   #4
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Nothing works as in TV"s, refrigerator, microwave, outlets? could you clarify a little better.
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Old 06-14-2021, 07:09 PM   #5
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Brand: Thor Motor Coach
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THOR #14567
when on shore power tv mico wave all work, and all 12volt, bathroom fan, lights, water pump etc., when shore power turned off of course nothing 110 will work, but non of the abouve 12v work
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Old 06-14-2021, 07:57 PM   #6
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Get out your VOM

Is your use/store or what ever it is labeled on?
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Old 06-14-2021, 09:01 PM   #7
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If you have a USE/STORE switch turn it to USE so that battery power gets to the 12 volt circuits.
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Old 06-14-2021, 09:09 PM   #8
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I had the same symptoms.
Turned out to be a faulty (or dirty/corroded) Use/Store solenoid.

In order to allow my coach to function properly for now, I over-rode the solenoid by connecting the positives together at the solenoid. Thus I currently do not have a functioning Use/Store switch, but the electrical system functions correctly.

I've ordered a new solenoid from Amazon for $35 which matches the Thor OEM.
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