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Old 05-11-2006, 02:28 PM   #1
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Question Another Univolt Question

Hi All,
My Univolt was working and while I was cleaning out the side compartments it just stopped!!! its a real bear to get to on my 72 Ambassador..under the tub and behind a closet....can anyone give any advise on what might have happened?? I checked the fuses I can get to and all look OK but I get no voltage readings on any of them. Maybe it just decided it was time and died...but I wanted to ask you all and see if there was anything else I can check, are they hard wired or pluged in?? and any suggestions how the heck to get to it??

Thanks
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Old 05-11-2006, 02:34 PM   #2
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I don't know the configuration of yours in your coach, but here's a simple question: Is the AC shorepower operating? Is any other 110vAC in the trailer working?

So, if it is, then is it reaching the converter? Check with a voltage test, but please be careful, that's probably a live wire!!!

After you have done these two tests, then you check the fuses in the converter. Right in the converter itself there should be one or more fuses. Replace them.

How do you know it quit? What was the indication?

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Originally Posted by higgy116
Hi All,
My Univolt was working and while I was cleaning out the side compartments it just stopped!!! its a real bear to get to on my 72 Ambassador..under the tub and behind a closet....can anyone give any advise on what might have happened?? I checked the fuses I can get to and all look OK but I get no voltage readings on any of them. Maybe it just decided it was time and died...but I wanted to ask you all and see if there was anything else I can check, are they hard wired or pluged in?? and any suggestions how the heck to get to it??

Thanks
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Old 05-11-2006, 02:36 PM   #3
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Did you check the 110 Volt breakers? One of mine powers the inverter and the exterior patio outlet.
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Old 05-11-2006, 02:40 PM   #4
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Univolt

The lights all went out and I get no 12V power to any of the lights, the 110V outlets still work, also I have three fuses that are not inside the univolt, two are very small amps in plastic fuse holders and one big one mounted beside the univolt, again all seem ok but I dont know what those go to ?
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Old 05-11-2006, 02:55 PM   #5
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Big one is between the battery and your univolt. The smaller ones are between the univolt and your DC items like lights and fans and pump. Did you check the AC breakers, like az said?

Hey, do you have a 12 volt battery in the system? If so, it should have powered the lights. If not, was there any special reason you took it out?
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Old 05-11-2006, 07:52 PM   #6
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I have checked the breakers and they are ok, I do not have a battery in the trailer because I know it needs to be replaced, (is that what did it in maybe??) and the fuses I am talking about are outside the univolt, I see the fuses for the acc. and the battery inside the univolt cover but these are totally seperate? If I can get it working it will be easier to figure out what the go to. Maybe the control panel?
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Old 05-11-2006, 08:53 PM   #7
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Has anyone used a Atwood SRV converter, I have been shopping around in case I need to replace my Univolt.. and is a 45 amp a good size for my AS??
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Old 05-11-2006, 09:02 PM   #8
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Anywhere from 45 amp to 65 amp is a good size, depending on if you are planning to install more 12 volt items.
There is also a little-known fuse that goes to ground (50 amp) that could give you a problem. It is also a very good idea to keep some kind of battery hooked up when using the Univolt, as it will help absorb some of the power spikes associated with an operating Univolt, and will help your other 12 volt appliances and lights live longer, healthier lives.
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Old 05-12-2006, 12:00 PM   #9
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Thanks for all your help, I will do that and keep looking into what happened.
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Old 05-12-2006, 12:35 PM   #10
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If your Univolt is kaput, I would shy away from the "Atwood". Look into either Iota or WFCO three stagers.
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