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Old 01-15-2015, 02:21 PM   #15
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My inverter does not need to be on to charge the batteries when plugged into shore power..
Then please explain to me what converts your 120vAC shore power to 12vDC that can charge the batteries, if not the inverter/charger?

If you have a Magnum it's not that you have to turn it on, rather it's on all the time because your "off" switch is inaccessible.
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Old 01-15-2015, 02:24 PM   #16
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Battery disconnect switch may have to be on, when traveling I turn it on and leave it on. Batteries will not charge if plugged into shore power if the battery disconnect switch is in the OFF position.
Not true for the Interstates we're discussing. The inverter/charger is wired parallel to the disconnect, so the disconnect does not control the inverter/charger.
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Old 01-15-2015, 03:16 PM   #17
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Plus if the AI is outside, the solar panel should keep the batteries charged if there is no or minimal load on them.

I know when I plug mine in to the outlet (GFI) in the garage, it will usually trip the GFI if the inverter is on.
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Old 01-15-2015, 03:26 PM   #18
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Then please explain to me what converts your 120vAC shore power to 12vDC that can charge the batteries, if not the inverter/charger?

If you have a Magnum it's not that you have to turn it on, rather it's on all the time because your "off" switch is inaccessible.


The inverter is NOT on all the time, if it were, then my TVs would also work without turning it on. Inverter is turned on at the overhead control panel but the charging system is supposed to work automatically when plugged in.

If the OP is only getting 15-20 Amps, it may not be enough to charge any of his batteries through his magnum.
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Old 01-15-2015, 03:44 PM   #19
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The inverter is NOT on all the time, if it were, then my TVs would also work without turning it on. Inverter is turned on at the overhead control panel but the charging system is supposed to work automatically when plugged in.
The inverter/charger is all one device, not two separate ones. It is not in "inverter" mode all the time, otherwise it would never charge the batteries. At any given time, it can invert or charge, but not both at once.

So you're right in that respect. You do not have to turn on the inverter. The inverter/charger as a single device is already on, and switches automatically to charger mode when it detects shore power or generator power, so you could say the inverter is off. But the device as a whole, the inverter/charger as a single unit, is indeed turned on, because your remote control panel only has two positions, invert and charge, no off position in between— unless they changed that recently. The only off switch is on the device itself, under your sofa. And unlike my Tripplite, the Magnum switch isn't on the front of the box where you can reach it.

Either I'm not using the right words to make you understand what I'm trying to say, or I'm mistaking what you're trying to say.
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Old 01-15-2015, 03:46 PM   #20
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The Magnum has max 12V charging current of 50 amps. Even at max battery charging the 120V AC would be well under a standard 15-20 Amp circuit. Ground fault could be causing a trip. I've had problems with that from my garage outlets when it's raining.


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Old 01-15-2015, 07:41 PM   #21
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The Airstream mechanic in Fairfield told me to turn inverter off and the house connect near side door on when plugged in at home.
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Old 01-15-2015, 09:28 PM   #22
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Is it parked outside?
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Old 01-15-2015, 10:05 PM   #23
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"Turn the inverter off" - was he specific on that? Was that with the Magnum Remote or with the very inaccessible switch on the inverter itself under the sofa? You shouldn't ever have to fiddle with the body of the inverter, so his advice makes no sense as far as I can see.


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Old 01-15-2015, 10:08 PM   #24
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Hi
Whats a fast way of being assured that the shore power is reaching my systems?
Came home and noticed a "low battery fault" message or something like that on the rear lounge area panel.

Its plugged into shore power so I thought that was odd.

I have the tank warmer on

Should I keep the house connect switch near the side door on?

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Hi, I'm not sure what you are asking, but my answers are:

(1.) A polarity tester in an easy to see 120 volt outlet. You need to see two yellow or amber lights and no red.

(2.) A "Kill-a-watt" plugged into another easy to see 120 volt outlet. This will tell you what voltage and cycles you are getting from shore power.

(3.) Also a voltage monitor plugged into any 12 volt outlet.

I have all three of these and always check them at each new hook-up.
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Old 01-15-2015, 10:14 PM   #25
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And I would add: try some very simple and basic diagnostics at this stage; try a different household socket; try running the generator and while it's running, look at the Precision Circuits display to see if it then registers something. If you still see nothing on the display, take it in to the dealer.


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Old 01-15-2015, 10:49 PM   #26
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Its outside
was told to turn inverter off with the magnum remote
Ill try with generator on
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Old 01-16-2015, 08:00 AM   #27
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The Airstream mechanic in Fairfield told me to turn inverter off and the house connect near side door on when plugged in at home.

Yes the Magnum inverter must be turned off at the remote display. If it is on the inverter is converting 12v DC to 120v AC and the batteries will not be charged.
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Old 01-16-2015, 09:05 AM   #28
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Shouldn't the solar panel still charge the batteries regardless of what the Magnum is set at? At least that's the way mine works.
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