Originally Posted by mschuri
I have had major difficultly finding a working adapter/power supply. One from Frys rated at 3000ma and 9-20v cannot handle the peak amperage draw and cycles on then off repeatedly.
I found a few on eBay/amazon but they all ship from china and take 17-27 days for delivery. Printer or VeriFone/Delta ac adapters look the best and they have the same shipping problem.
Post #37 has the details on what I used, but here it is again:
I looked all over - and finally found a good power supply. It's a 5V 3A power supply for a Linksys router. My bilge fan is 12V 3A, but 12V makes the thing blow like a leaf blower. From what I've read, you can reduce the volts (and that will drop the speed) - but the amps should always be the same or higher - or it can cause an overload (blown fuse / fire risk). I ordered one from Amazon - Here's the link:http://www.amazon.com/Genuine-D-Link-Supply-ADAPTER-JTA0302C/dp/B004576EOK/ref=sr_1_3?ie=UTF8&qid=1329351773&sr=8-3
It is working really well. I had some frost build up before turning on the fan last - and next day it was all gone and has never come back. I put a few DampRid canisters in there over a month ago and they are both looking brand new still.
The speed is pretty good - but a little higher voltage would probably be better - if you can find one. I'm not going to bother for now. I drilled pretty small holes in the PVC - and had to enlarge them. The fan speed isn't strong enough to really push the air through the small holes. I have the fan pulling the cold air up - so it hits the lid, and keeps the taps colder (less foam on first pour). The only concern is that with the fan blowing air up - this will pull out all of the cold air when the lid is open...so I'll l likely rig up a switch to the cord - or maybe install one that goes on /off as the lid is opened / closed.