Greetings Polly!
--- In AirstreamList@yahoogroups.com, "Beverly Pulver" <jppolly@...> wrote:
>
> I am replacing the old fan vent with new Fantastic vent 4000R. Got old one out and new one in but it is blowing its fuse and I am not sure what is going on. The old fan worked when I took it out. Tech suggested that reverse fan switch may have gotten jiggled out of proper alignment in shipping but I don't know how it ought to look when correct?? Any suggestions? I can reach tech by phone but it requires a lot of waiting and I can't seem to get to them by email, it bounces. Anybody have any suggestions?
>
Polly, if I remember correctly, your coach is a 1964 Airstream. Based on the belief that your coach is a 1964, and that your original fans had a little black box on them, I may be able to offer a possible cause . . . particularly if you have the original Univolt. As originally installed, the OEM fans had a transformer in the electric supply to the fan. It is my understanding that the original Univolt supplied 18-volts to the system, and the transformers cleaned up the power and reduced it to 12-volts. Electricity is not my specialty, but one way of testing my theory would be to disconnect from shore power and try operating the Fantastic Fan on 12-volt from your battery . . . if it works properly, then you may have focused upon a problem with voltage produced by the Univolt.
I have Fantastic Fans in both roof vents on my 1964 Overlander Land Yacht International, but I had them installed by the factory team whle at the 1998 International Rally in Boise, Idaho. I was present during the installation, and I do remember the question of whether my Univolt was original or if it was a modern converter. I suspect that the transformer issue may have triggered the question. When I responded that the converter was a new unit installed in 1995, they proceeded with replacement.
Good luck in finding the culprit of your Fantastic Fan electrical issues!
Kevin
Kevin D. Allen
WBCCI 6359 (Lifetime Member), Vintage Airstream Club
1964 Overlander Land Yacht International/1999 GMC K2500 Suburban, 7400 VORTEC, 4.10 Differentials
1978 Argosy Minuet 6.0 Metre/1975 Cadillac Eldorado Convertible, 8.2 Liter V8, 2.70 final drive
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