Vortex II Vent Fan Reliability Improvement
I recently replaced my Vortex single-speed vent fan with the Vortex II multi-speed reversible fan. While installing the fan, I accidentally dropped the fan on to a soft bed. I was surprised to find ...
Forum Discussion
DD716TED wrote:Lynnmor wrote:
You could have added a PWM to the single speed fan and had variable speed forward and reverse. The cost would have been about $10. The resistors in the new switch waste power.
Where did you find a source for a PWM for $10.. Thanks
eBay, tons of them. I first tryed one that had a reversing already attached, but that one set up harmonics. If you get the really cheap one and a DPDT switch you should be good.
