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 ...
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I ordered one of those reversible PWM controllers on ebay as well. I thought it would be perfect. I tested it on the bench with my original single-speed Vortex fan and immediately found two shortcomings:
1. it produced an objectionable whine at every fan speed.
2. when in the "off" position, it still drew several milliamps of current. To actually turn it off and prevent battery drain, I would have to add a second switch.
1. it produced an objectionable whine at every fan speed.
2. when in the "off" position, it still drew several milliamps of current. To actually turn it off and prevent battery drain, I would have to add a second switch.
