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Old 05-14-2007, 06:23 AM   #15
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1979 31' Sovereign
Baton Rouge , Louisiana
Join Date: May 2006
Posts: 72
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Power

Quote:
Originally Posted by guy99
I would think that the batteries went dead because the converter was not charging them. When you later plugged the shore power in, the converter was putting out power and running the lights (and hopefully charging the batteries). Did you by any chance reset any circuit breakers in the 120V AC box? On my rig the converter plugs in to a duplex outlet which is on the same circuit as the outside outlet so it is protected by a GFI breaker. While we were in Mexico, this breaker failed (would not stay in the "on" posiiton even when there was no 120V AC power). Had to replace it before I could recharge the batteries.

It makes perfect sense that the AC worked when you were plugged in to shore power since the Air Conditioner runs exclusively on 120V AC. It will work fine without battery or converter.

As to why the PD didn't work and then did, the only things I can think of are a tripped 120V circuit breaker or some kind of bad connection. Grounds are notorious.
Guy,
I did reset all the breakers now that you mention it. I also wonder if having only 1 battery could have anything to do with it. I just never got around to putting the second one in. -D
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Old 05-14-2007, 06:31 AM   #16
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1993 21' Sovereign
Colfax , North Carolina
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Quote:
Originally Posted by Aussie70
I can't hear the Univolt humming when we are connected to shore power so I thought that could be part of the problem, but if it was toast would any of the 12v lights be working at all???
The voice of recent experience here. Check to make sure the Univolt is turned ON, there may be a switch somewhere to turn it off.
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Old 05-14-2007, 09:47 AM   #17
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1984 31' Airstream310
Dunsmuir , California
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Quote:
Originally Posted by cobra93
Guy,
I did reset all the breakers now that you mention it. I also wonder if having only 1 battery could have anything to do with it. I just never got around to putting the second one in. -D
If everything continues to work, I suspect the breaker was tripped, and since you reset them, everything is good.
I suggest you get some kind of volt meter (You can get a digital meter from Harbor Freight for $3.00 on sale, and RV places will have one that plugs into a power point - cigarette lighter). Keep an eye on it, if it ever goes below 13.1V when you are plugged in, check your breakers.

Having only one battery won't cause any problems other than the battery running down more quickly when you are not connected to shore power.
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Old 05-14-2007, 07:27 PM   #18
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1979 31' Sovereign
Baton Rouge , Louisiana
Join Date: May 2006
Posts: 72
Images: 42
Power

Quote:
Originally Posted by guy99
If everything continues to work, I suspect the breaker was tripped, and since you reset them, everything is good.
I suggest you get some kind of volt meter (You can get a digital meter from Harbor Freight for $3.00 on sale, and RV places will have one that plugs into a power point - cigarette lighter). Keep an eye on it, if it ever goes below 13.1V when you are plugged in, check your breakers.

Having only one battery won't cause any problems other than the battery running down more quickly when you are not connected to shore power.
Thanks for the tips man. I really appreciate it.
-Don
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Old 05-14-2007, 08:55 PM   #19
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1997 34' Limited
Young Harris , Georgia
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Quote:
Originally Posted by john hd
follow your manual, the 12 volt fuses are inside the front door of the univolt.

is it humming when you are on shore power?

john
On the '70, the front panel of the Univolt probably folds down, like my '73 (but I am not sure). Here are two pics as I worked on it. The Univolt is in a compartment under the range (actually, it is on the floor now 'cause the galley is completely torn out).

Like John said, it hums noticably when on shore power. I did not have a battery at all.

Here is a pic closed, and a pic with the front cover folded down.
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