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Old 12-09-2013, 11:59 AM   #1
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1974 Argosy 22
Fairview Park , Ohio
Join Date: Dec 2013
Posts: 1
1974 Argosy

Hello There

I am a new owner of an old Argosy. I am not well versed at anything less than 120 VAC.

When plugged into shore power, the interior lights and 12 volt accessories work. When disconnecting shore power, interior lights do not work. New battery installed. I am not sure if there is a manual transfer switch to toggle between 12vdc provided by the converter and the battery. If there is such a switch, can anyone help me locate it? If the switching is done electronically, are there any suggestions on troubleshooting?

Ive read all sorts of issues concerning the old converter being hard on the battery. I am considering replacing it along with all of the peripheral wiring wiring in the bathroom closet / electrical room- I'm surprised at the sloppiness the the electrical install. Any thoughts on newer converters? I like the looks of the converter / power centers.



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Old 12-09-2013, 12:14 PM   #2
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2017 26' Flying Cloud
1976 Argosy 28
Alamo Heights , Texas
Join Date: Aug 2006
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If there is a battery-disconnect switch, it was installed by a previous owner rather than the factory, so it could be anywhere around the battery or the univolt.

More likely is that there's a bad connection or open fuse between the battery and the main bus of the fuse block. One quick check for that would be to measure the voltage at the battery when the trailer is unplugged and then measure again when it's plugged in. If the voltage is about the same, the battery isn't properly connected to the 12v system (the Univolt that's powering your lights and other 12v stuff when plugged in should also be applying a charge to the battery.)

No one complains about 3-stage Iota or Progressive Dynamics converters. (Note that some of the cheap Progressive Dynamics models you'll find on eBay and Amazon are single-stage, pay attention to the model numbers.) I have had good service from a Powermax Boondocker converter, but I've only been using it a year or so.

If you have the original Univolt, the upgrade is well worth it both for the better converter/charger and for a modern fuse block that uses the better automotive-type blade fuses.
— David

Zero Gravitas — 2017 Flying Cloud 26U | Il Progetto — 1976 Argosy 28 Center Bath | WBCCI# 15566

He has all of the virtues I dislike and none of the vices I admire. — Sir Winston Churchill
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