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68International · 07-15-2002, 11:26 AM

Hi All,
I have a '68 International 28ft, I was out this past weekend(first time this year). It was warm but not enough to turn in air. Wife opened ceiling vents and tuned on the 2 exhaust fans. went back in a later in the day and fans were barely turning and all 12V lighting was dim. Checked voltage on battery( 8 month old Optima blue top) it was down to 5.7V, hooked my meter up in series and charger was putting out 14.7V. Ammeter showed no charge, but when I hooked up the truck to go home ammeter when to full charge indication.
I thought that the converter should be able to run all 12V stuff without draining battery. According to the owners manual there is supposed to be a spare 40A fuse in the control panel, in my panel it is being used for something not sure what. Have 120V going into converter/charger, 14.8 coming out at battery. after driving home battery was at 12V. Any help would be appreciated.

Take care

thenewkid64 · 07-15-2002, 11:33 AM

Based on your description I assume that the 14.5 volts was at the battery terminals, with the univolt on? If that is the case you need to check the amperage that the univolt is putting out. It may be at 14.5 volts but if there is only 1 or 2 amps coming out then the fans will suck the battery down. My best guess is that the univolt is not long for this world. Just my $.02. Someone else may have a different theory. That is what makes the forums great!

68International · 07-15-2002, 01:11 PM

Thanks Brett,
You are correct that the 14.5V was at the battery.
I was thinking along those same lines, but was curious about the use of the second fuse in the control panel. The owner's manual tells you to look in the control panel manual for more trouble shooting inf. I never one knew existed.
I've got a AC amp meter guess it's time to go buy radio shack and see if they have a DC amp meter. Hopefully it's just the univolt and not some crazy rewiring job.

Take care

thenewkid64 · 07-15-2002, 01:28 PM

Depending on the cost of a DC Amp meter at Radio shack you could buy an automotive Amp meter for less than 20 bucks. Follow the installation instructions and you can have a good idea of the amperage output of the univolt all the time. Just be sure to fuse it for safety!

Here is a link.

http://www.sunpro.com/cgi-bin/web_st...d=1508178_1944