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Enot
12-16-2011, 03:51 AM
Hi seniors,

For the first sorry for my worst English.
I have a trouble with AC power supply system in my 2004 GulfStream Crescendo 8386. When I connect 50A cable to external AC power port there is no power in coach. But when I start generator everything works fine. Coach is located in Spain, and as you think there is no Americam RV specialist. Local electrician found that it could be a short circuit somewhere in coach. So can you help me with any information about AC power supply . Where is located AC main breakers, 50A cable connectors ? May be anybody has wiring diagrams?

Thanks,

03heritagerider
12-16-2011, 09:02 AM
Your English is fine! You have me at a disadvantage, because I do not speak Spanish.

My main breakers are located on the side of the bed platform

I had a similar problem to what you describe, and before you pay someone to fix it, you can check this yourself. I'm hoping your system is similar to mine.

* Lift the mattress platform and look under it.
* There should be a box with heavy wires going into and out of it. This is where the power lines come into the Motor Home, then go out to the wall outlets.
* It should be marked Automatic Transfer Switch and it should look like this photograph
* Get a voltage tester.
* Carefully remove the cover of the box.
* Disconnect the 50A power line and start the generator.
* Test the lines for power going into and coming out of the box. Since you said that everything works when the generator is running, you should have power coming into and going out of the box.
* Turn off the generator and plug in the 50A line and test again.
* If you have an inverter, turn off the generator, and disconnect the 50A line.
* Turn on the inverter and test again.
* If you have power coming into the box for each test, but not out for any of the tests, then the Automatic Transfer Switch has failed.

You can find one on the internet for less than $100.00U.S. and they are very easy to replace.
This is one choice, but you can find others by searching for the name on your box. http://store.thesolarbiz.com/online/Pro ... 40050%2c51 (http://store.thesolarbiz.com/online/ProductDesc.aspx?code=IOT-32002&type=0&eq=&desc=IOTA-50-amp-USE-PMX-40050%2c51)


If this is not the problem, I'm sure someone else will be on here to give you other things to test.

Good luck.

Enot
12-16-2011, 09:49 AM
Thanks a lot !
I don`t speak Spanish too because I`m Russian :)). I just keep my motorhome in Spain.

So, I think Automatic Transfer Switch is the first place I need to check. But I don`t remember does it exist under the bed or not.
So, I`ll be able to check it in the start of January.
Thank you very mach for your advice.

PS. It`s very strangely, but I`ve addressed a request to GS service via Email, but didn`t recieve any assistance.

Regards

03heritagerider
12-18-2011, 07:21 PM
Well then...привет!

When I saw your message started with Hi seniors, I thought you were Spanish. So, you have me at even more of a disadvantage. At least I know several words in Spanish. The only words I know in Russian are nyet and da.

Anyway, your motorhome is very similar to mine and I am almost certain that the transfer switch will be found under the bed.

Let us know what you find. удача! (thanks to Google translations)