[aich75013]

Here's what I did in my Vinotemp.

1 computer fan (3v)
1 power supply (3V) I don't remember what it was from, but I always hang on to power supplies. I think it was from an old cell phone. You want the voltage to be as close as possible. You want the amps to be atleast as much as the fan needs. More is ok.
1 household timer

I stripped the wires and connected them to the fan. Just twisted them together for now. And plugged it in. I think if you have them swapped, that it won't work. Once I knew I had it wired correctly, I soldered them together and put some shrink tubing on them. That is not necessary. You could just put some electrical tape on it once they are twisted together.

I then used a household timer that I already had. I set it to go on/off for 45 min every 2 hours. It has dipswitches so it made setting the time easy.