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Old 08-27-2015, 10:24 AM   #11
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Hi Group:
I'm new to this forum and new to Forest River products. I have a new to me 2012 Shamrock 23SS hybird TT. I've developed a weird electrical issue. I don't understand RV wiring too well...I'll try to be brief.

First, I've checked all breakers and fuses and all is good.
Second, I have full battery power (fully charged battery).
Third, I have no 110 shore power!

Last weekend all worked fine including Frig, A/C and Micro. Today, not so much.

Micro appears to be dead. I removed and plugged into the house directly, nada. No power.

Frig works only on LP. When I turn it on set on Auto, the check light comes on within a few minutes and won't cool. Ran and cooled fine last weekend on AC shore power. Now I can only get it to run on LP.

As I was checking things out, I tested the GFCI's and found they are working fine. The oddity is that when I plug in a standard 110 box fan, it only runs on SUPER high speed. I assume that's because the plugs are powered by DC right now and not 110 AC. Plug same fan into standard house socket and operates normally...

I have a dedicated 30A plug on the house. That doesn't seem to make a difference. I've also tried a 20A adapter and used a different outlet, still no power to camper.

Thoughts? Replace the converter?
This is a perfect case where this http://www.amazon.com/Progressive-In...tection+device would have prevented all the damage to your camper.
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Old 08-27-2015, 10:50 AM   #12
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Wow 30A wired as 240VAC! That would do it and explains the fans operation. I assumed the 30A outlet was used before without problems.

This is a good engineering trouble shooting example.

Once you get that 30Afixed you will need to trouble shoot each 120V appliance for damage.

Plugging your camper into a GFI should NEVER trip your GFI, unless you draw too much current. Never try to run A/C or a lot of appliances when plugging your 30A camper into a 20A or 15A circuit!

I plug my camper into my garage 20A outlet (GFI protected per code) all the time without tripping the GFI.

The AC (120V) system in your camper is wired just like your house per code. There should not be "floating grounds" on the AC side! Once you connect the shore plug to your house (power source) the camper is just another room(s)/ circuits(s) in the system.

If anyone is tripping a GFI circuit their camper is plugged into, when the load is within the rated amperage of the GFI circuit, should have their camper inspected for electrical faults! Something is wrong!





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Old 08-27-2015, 11:33 AM   #13
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Would the $84 Smart Surge (SSP30) help if the wife will not allow the $300 purchase?
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Old 08-27-2015, 11:39 AM   #14
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Would the $84 Smart Surge (SSP30) help if the wife will not allow the $300 purchase?
Sure...anything is better than nothing. You never know what condition the power system is in at a campground.
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Old 08-27-2015, 01:54 PM   #15
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In this case both the line and neutral had 120VAC only, so a plain Jane Surge Protector might not catch this problem. The Smart Surge (SSP30) would have for it checks polarity and it would have seen 120VAC on the neutral.

It's good to look at the spec of protection devices to see how they will protect as some offer cost savings by limiting protection.






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Old 08-27-2015, 02:03 PM   #16
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For the lowest cost would this be the best option?
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Old 08-27-2015, 02:07 PM   #17
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2012 Shamrock 23SS Elec Issue

Yea I would get one, if limited $, as they are good protection for most issues.

Not sure why they are not built into the cords of modern RV's. I plan on installing the hardwired model for it has a few more features.


iPhone correction is driving nuts! I had to edit this post twice.

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Old 08-27-2015, 02:30 PM   #18
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Thanks Eric. If I spend much more than this it might cut into our camping budget.
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Old 08-27-2015, 02:45 PM   #19
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I here you on that. I know the risks and understand the costs on the down side of not having protection, but I still don't even have the $90 unit for my camper!

As a Professional Engineer I know better and recommend protection as the first thing to buy before a sewer hose, but I don't have one yet.







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Old 08-27-2015, 02:47 PM   #20
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BINGO! Give this forum a cookie!

The electrician, in fact, wired a double pole 240 not a single pole 120! Now I have to figure out the damages....I assume it's going to be major.

Thanks for the info
you'd be surprised how often this happens. we see lots of posts of this occurring when the electrician doesn't know how RV systems are set up and assumes it's like a house.

if anyone is thinking about getting a 30amp setup at home, they need to educate themselves so they can make sure the electrician knows what they're doing.

too often, they don't research it first and end up on a forum like this, after the fact, asking why nothing works and why stuff got fried.
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