New vent fan??
Currently in my TT I have one of those 3-4" fans in the vent in my bathroom. I would like to upgrade it to a full sized fantastic fan or create a breeze style vent. Do they make one of those that I ...
Forum Discussion
BStrummin wrote:
dmullen - I haven't done this but from the picture posted above it looks like their PWM had a remote dial, while the one you posted does not. That might complicate this a bit. That said the connections look simple - +/- in, +/- to motor. Again in the picture above it looks like they just took the +/- from the trailer, wired into the pwm, then sent power back out to the unit. This would retain the on/off switch, but would add in the knob to adjust speed. The extra whitish wire is for the remote knob.
Does that help?
Yes, it's just that simple. I left the original switch in place as a master on-off. The DPDT switch reverses polarity and thus reverses the motor direction. The speed control knob was factory connected on the eBay model I bought. There are others with the reversing switch also factory connected, but one that I bought caused harmonic noise.
