This post is for informational purposes only. Please review the manufacturer data sheet and verify that the specifications are appropriate for your application before purchasing any replacement parts.
Kennon potentiometers seem to keep popping up in the speed or motor controls for a lot of old equipment, specifically the WH115 series. It seems that this was discontinued some time ago, with very little for us to go on for specifications. However, we can usually work out the critical specifications based on the part markings which are thankfully pretty straightforward. They should be printed on top, usually white text on a black case.
For example, take the above part with markings “WH115,” “A47K,” and “100°.” WH115 is going to be the series name, likely calling out a 15mm diameter body. When you look at the measurement for one of these from an old blower it matches up. For A47K, the “A” is likely calling out the taper type. This can vary by manufacturer but it almost always calls out a linear taper, which is pretty easy to match. The “47K” is just the maximum resistance in ohms, and 100° is most likely the rotation.
With this information we can pretty safely point to 1993-PT15GV22-473A2020-E-PM-S-ND as a likely substitute part.
This should hold true for most WH115 pots, simply substituting the required value from one of the PT15 pots based on the second set of characters (A47K in our example equals 47kOhm, but you may find them with “A10K” or “A470K” for 10k or 470k ohms instead).
One last note: Power is an unknown from what I could find unfortunately, based on the size and type I expect it doesn’t have significantly higher than a 0.25W rating but err on the side of caution whenever you’re unsure.