Re: SAF Nutura Extractor Help!!
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Make sure that the extractor reel (that holds the frames) can spin freely without the motor running. You may need to remove the motor to determine this.
If the motor hums, my guess is that there is a mechanical issue, rather than a wiring issue. Contaminated grease in the extractor drum bottom bearing is a possibility. Make sure the motor is mounted correctly (not mis-aligned with respect to the reel.)
Starting capacitors are typically found on AC 'fixed speed' motors (like on a tablesaw, perhaps). My guess is what is in that extractor is a DC motor (with the electronics in photo #2 converting the AC input power to DC to facilitate variable speed.)
. . . . . . "those who want to see, can see". - - [Oldtimer - 2016]