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3 speed switch with red black brown and blue. What is brown

Jessica, Tried looking for a wiring schematic for Holmes. Blizzard oscillating floor fan with no luck. You can try doing a search (Blizzard oscillating floor fan and include your model#), may have better luck. Posted a couple links below to what I did find(shows a bit of the wiring for switch). Leave question open if need better more info.. Good luck. I hope this helped you out, if so let me know by pressing the helpful button. Holmes Blizzard Fan Oscillation Button Replacement Holmes Blizzard Fan Oscillation Gear Replacement