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Old 12-25-2018, 07:13 PM   #51
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One of the major reasons for the ground wire is to carry current away from the vehicle when a plugged-in appliance fails and its hot wire touches its metal case (e.g., refrigerator, AC, Truma). When Hymer's 18-gauge fails the whole RV instead is live and ready to kill.
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Old 12-25-2018, 07:23 PM   #52
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The inverter disconnects shore power hot and neutral until the inverter has 12vdv and is turned on. Therefore the gfci will not trip when the inverter is off.
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Old 12-25-2018, 07:27 PM   #53
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Originally Posted by booster View Post
That would probably explain why the dealer said they all do it. The inverter is probably autobonding when you turn it on, but you have no choice as it has to be on to charger your batteries.


Other inveter/chargers, like the Magnum we have and I think almost all others, are set up so you turn the inverter separately from the charger (which often starts automatically when it sees shore power).


It is a bummer when you can't charge your batteries off a GFCI outlet as they are required in all garages and outdoor outlet locations that we all have at home.

I believe cutting the main panel "Green Link" is both much safer and allows charging from Gfci.
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Old 12-25-2018, 07:37 PM   #54
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Originally Posted by cruising7388 View Post
I don't know what inverters are supplied for the Activ but the Roadtreks that use the Powerstar inverter do require the inverter to be powered on for the shoreside charger to operate. It's a flawed design because a faulty inverter shuts down a perfectly functional shoreside charger.
The Aktiv and newer roadtreks have the Microgreen integrated inverter/changer. The cabin will not accept shore power or charge batteries until the inverter first has 12vdc and the inverter is on. This is why we can't recharge totally dead batteries from shore power.
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Old 12-25-2018, 11:45 PM   #55
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Booster, Interesting. I haven't met that hymer code violation in an Aktiv. Is the ground to neutral bond in the main panel box? I'd recommend that Yoshimura have an electrician cut the "Green link" then use an ohm meter to check for an open circuit.

I seem to remember that in your original thread that the main panel was neutral ground bonded, thus giving two bonds which is a violation. In your drawing you show a bond to chassis in green, is that the "green link" you are talking about.
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Old 12-25-2018, 11:47 PM   #56
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I believe cutting the main panel "Green Link" is both much safer and allows charging from Gfci.

That is true, but the that bond should not be there anyway. It still wouldn't do anything for if the inverter section needs to be on to charge batteries and it autobonds, which we don't know at this point.
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Old 12-25-2018, 11:50 PM   #57
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The Aktiv and newer roadtreks have the Microgreen integrated inverter/changer. The cabin will not accept shore power or charge batteries until the inverter first has 12vdc and the inverter is on. This is why we can't recharge totally dead batteries from shore power.
Needing shore power and 12v battery reference is the norm for smart chargers, so no oddity there.



The question is if when you are saying the "inverter" needs to be on to charge, do you mean the inverter/charger inverter and charger sections, or just charger?



The Magnum works just as you describe, but the inverter section does not come on automatically with shore power and it has it's own on/off switch.
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Old 12-26-2018, 02:40 AM   #58
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The bottom line is ground (earth) must only be bonded to neutral in the shore power breaker box when the Rv is powered from shore power. Dangerously, hymer/Rt uses 18-gauge wire for the ground conductor.
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Old 01-11-2019, 04:49 AM   #59
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Default 3000 Watt RT Inverter/charger is dangerous too

We finally have photographic evidence that Roadtrek's 3000-watt inverter/charger dangerously uses a single 18-gauge wire for the 120 volt 30-amp service ground conductor. Page 11 shows the added UL-458 violation evidence. This resolves RT owner confusion between 2000-watt and 3000-watt inverters when filing their attorney general complaint. Both are in violation of UL-458 so owners should file suspected fraud a complaint regardless of the wattage.
Attached Files
File Type: pdf Attorney General Evidence against Hymer 10Jan2019.pdf (869.6 KB, 36 views)
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