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 > GFI tripping when plugging in to charge batteries

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arkidog

south central

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Posted: 03/17/20 02:49pm Link  |  Quote  |  Print  |  Notify Moderator

I also own a GD 21G that will trip any ground fault plug that I plug into. From reading on the Grand Design Forum it seems that every GD with an installed generator has this same problem. One member reported that GD told him the problem was that the neutrals for the RV and the generator were bonded together at the generator transfer switch causing the problem and gave him a fix. I will not try to restate that fix here. The fix should come from GD and be done by dealer / service tech.


2019 GD Momentum 21G
2012 Ram 6.7L CTD

wopachop

lb

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Posted: 03/17/20 03:02pm Link  |  Quote  |  Print  |  Notify Moderator

Is there any chance his water heater, fridge, lights and converter are simply pulling over 15 amps? Like mentioned above turn off all the RV breakers and try again.

Also make sure you water heater is filled with water. You probably know that after 18 years though.

ScottG

Bothell Wa.

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Posted: 03/17/20 03:40pm Link  |  Quote  |  Print  |  Notify Moderator

wopachop wrote:

Is there any chance his water heater, fridge, lights and converter are simply pulling over 15 amps? Like mentioned above turn off all the RV breakers and try again.

Also make sure you water heater is filled with water. You probably know that after 18 years though.


Good question but a GFCI is not a circuit breaker and wont trip just because one pulls more than 15A from that size of circuit.
But a defective water heater, fridge or converter can cause a ground fault.


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dedmiston

So Cal

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Posted: 03/17/20 04:23pm Link  |  Quote  |  Print  |  Notify Moderator

arkidog wrote:

I also own a GD 21G that will trip any ground fault plug that I plug into. From reading on the Grand Design Forum it seems that every GD with an installed generator has this same problem. One member reported that GD told him the problem was that the neutrals for the RV and the generator were bonded together at the generator transfer switch causing the problem and gave him a fix. I will not try to restate that fix here. The fix should come from GD and be done by dealer / service tech.

How about a link?

I'm typically not a fan of links to other forums & social media, but linking to the solution would help the OP so he doesn't have to start from square one when he calls the factory.


2014 RAM 3500 Diesel 4x4 Dually long bed. AISIN trans & 4.10 rear. B&W RVK3600 hitch • 2015 Crossroads Elevation Homestead Toy Hauler ("The Taj Mahauler") • Hooligan #3

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arkidog

south central

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Posted: 03/17/20 07:33pm Link  |  Quote  |  Print  |  Notify Moderator

Not a link but you can find it here:
Grand Design Owners Forum / General Tech / Electrical / Shore Power Gfci Issues
Page 3 (#38) dated 02/22/2020 10:43 AM

mapguy

Puget Sound

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Posted: 03/19/20 02:37pm Link  |  Quote  |  Print  |  Notify Moderator

arkidog wrote:

Not a link but you can find it here:
Grand Design Owners Forum / General Tech / Electrical / Shore Power Gfci Issues
Page 3 (#38) dated 02/22/2020 10:43 AM


https://www.mygrandrv.com/forum/showthread.php/28159-Shore-Power-Gfci-issues

Flute Man

Payson, Arizona

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Posted: 03/20/20 04:09pm Link  |  Quote  |  Print  |  Notify Moderator

ScottG wrote:

I could not disagree more with the above. Your trailer should not trip a GFCI and if you ignore it, you can easily end up with a hot-skin issue and someone could get hurt or worse. The problem is fixable.
(Retired EE)


X2. Another retired EE


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