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Old 04-01-2018, 06:01 AM   #1
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Join Date: Apr 2018
Location: Mo
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New member, probably old question.

Good Morning,

I ran into a problem with my travel trailer and decided it was time to join. I've been lurking for a couple years. I've always thought, I could add something to the threads, but I resisted joining.

On Thursday, I had an issue, that will need repair. I think I have it figured out, but I thought I should run it past the forum, to be sure, before I dive in, buying parts. There could be something I don't know about.

I did an introduction, but I think I will add to it.

Here is my issue.

I am currently waiting on White River Electric, to hook up my service. It has rained alot, so they haven't been out to hook it up. That's the way it goes. I have been running off of a generator. I don't need much, so a few hours of generator time, gets me by.
On Thursday, I was outside. My generator idled down very low, then all of a sudden ran up to a high idle, before going back to normal. I knew that wasn't good or normal. I went inside the trailer and smelled electrical burning.
After some troubleshooting, I think I know the problem.
The generator had a power surge. I think it killed the power converter. I pulled it out. If I get close, I can smell burnt electrical. There are 2 round electrical components on it. One of them is slightly mushroomed on the top and appears to be split open.
I have no power in the camper.

I think I need to replace the power converter.

If you need any more information, just ask.

Any inuput would be appreciated.
Thank you.
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Old 04-01-2018, 06:57 AM   #2
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Location: WI.
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I didn't see on any of your posts what you have for an RV.
Place that info in your signature an folks will be better able to answer your questions and help.

I agree it doesn't sound good for the converter. After you get it out, it might be you can get by with just replacing the board.
You will have to know what size the converter is before ordering anything.
There should be a tag on it with that info.
I've posted three links below for you to check out. WFCO has a tech support line for questions/help.

WF-8900 MBA SERIES | Product Categories | wfcoelectronics.com


https://www.ltdrvparts.com/WFCO-55-A...-WF8955MBA.htm

WF-8955 MBA (Main Board Assembly) Installation | wfcoelectronics.com
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Old 04-01-2018, 09:43 AM   #3
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Join Date: Apr 2018
Location: Mo
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Thanks for the reply.

I forgot about the trailer information. I will get it added.

It is a Crossroads, Sunset Trail, 2010. Truthfully, I don't remember the model. I think it has 29L on the side, but it looks like it should be a 29RL.

It is the same as this one.
https://www.generalrv.com/product/us...29rl-617225-29

I pulled it out, but couldn't find a model number. It only has a sticker on it that says, AC04W08A603500.

While I was there, I googled power converters. It looks just like this one.
WFCO 8900 Series, Main Board Assembly RV Power Converter Center, ..

Although this one says 55 amp and my trailer is a 30 amp. Doesn't necessarily mean it is the wrong one.

I will check out your links.
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Old 04-01-2018, 04:55 PM   #4
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Welcome Builditguy.
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Old 04-01-2018, 06:30 PM   #5
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Welcome. Sorry about your electrical issues. Just for future info. I use a Progressive Industries surge protector even with the generator. However, I have to use a neutral-ground plug in the generator or the surge protector gives a E2-Open ground message.
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Old 04-01-2018, 08:50 PM   #6
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Hello from Mo.
About the converter the 30 amp is the ac side the 55 amp is the 12 volt side. In other words 30 amp ac in to the converter to run all your ac things -air cond. microwave. water heater when its on electric. fridg on electric and any thing you have plugged in.
55 amp output from the converter to run all the lights and the 12 volt start for the h2o heater and fridg when they are on gas and also charge your 12 volt battery. Last summer I had to replace my converter. I have the same one that you have. I found that the replacement board cost the same as the whole converter. I replaced mine with the new converter because they have made improvements sense 05 when my cruiser was built. It was a job but not to bad as I had to change all the wiring. I also took this oppertuinity to change all my 110 breakers as some were getting week.
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Old 04-02-2018, 03:32 AM   #7
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I agree. I should have had a surge protector. Should always have a surge protector, even when plugged in, I just never bothered. Cost me this time.

I appreciate everyone's input. I just wanted to make sure there wasn't something I was missing. You know, maybe, "Yes replace the converter, but don't forget about ??????" Since this is something I've never had to deal with, I thought I should check it out.
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Old 04-02-2018, 03:38 AM   #8
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Just a test to see if the signature is coming up now.
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Old 04-04-2018, 12:33 PM   #9
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My bet is the converter just went bad, causing the generator to do the surge thing.

As it failed the generator saw the issue and slowed/speed up trying to keep the voltage within specs.

Surge guard likely wouldn't have done any good as the issue was "downstream" from where it would have been.
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Old 04-04-2018, 07:22 PM   #10
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Quote:
Originally Posted by builditguy View Post
Just a test to see if the signature is coming up now.

Thanks Greg.
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