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Old 01-14-2004, 06:39 AM   #1
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Univolt on thhe Fritz

A fully charged battery runs all of the 12v systems in my A/S just fine. If however I plug 120v to the univolt, I hear a click, and all of the 12 volt systems shut down. Can my univolt be fixed?

The original Univolt 40 amp power converter, model 3240UL was made by B. W. Mfg. Kokomo Indiana.

Any help would be greatly appreciated.

Dick
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Old 01-21-2004, 03:14 PM   #2
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That's Odd

You might want to disconnect the Univolt from the DC output.
Try powering up the Univolt again see if it shuts down the DC with it disconnected from the battery system. If the battery alone runs everything without shutting down, check the output voltage of the Univolt, I think you will find it is 0Vdc.
If this is true the best thing is to remove it and place it in a trash bin.
It is not worth repairing. Replacements can be had for less than a reputable shop would charge to repair the old one, and you would still have an old Univolt.

Good Luck
That's my $0.02
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Old 01-21-2004, 06:46 PM   #3
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Hi Gary,
Thanks for the suggestion. Thats a great idea. Will try first thing tomorrow AM.
Dick
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Old 01-21-2004, 07:40 PM   #4
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Dick,
Check out this thread, Univolt link might be your problem? I plan on replacing my univolt to get rid of the hum. Unfortunately it hums a tune I don't like

Aaron
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Old 01-21-2004, 07:52 PM   #5
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no click

hey dick

i have seen the insides of a couple of univolts, there is nothing in them that could "click". very basic units.

i wonder if a p.o. may have added a circuit breaker to the 12 volt system.

john
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Old 01-21-2004, 09:35 PM   #6
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There are a few good running (old and loud) Univolts out there that last 30 plus years. If you determine you need to replace it, give us a call for the Inteli-Power with Charge Wizard and we'll have it at your door in 2-3 days for $184.95 plus shipping. Same price for the Parallex 7455 (55 Amp) if you prefer and we can save you about 50 bucks.
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Old 01-23-2004, 11:17 AM   #7
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Eurica! Success!!! The problem was the 120v line polarity was wrong and that is what caused the overload protection circuit breaker in the univolt to energize. I'm still going to get a smart charger however, but first I need to address other more critical issues, like hot water, heat and refrigeration. Life is good! Dick
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