This image is the circuit connection of ceiling fan.
Ceiling fan has a “capacitor start motor". AC single phase capacitor start motor has two winding; one is starting winding and another is running winding.
If it is has a capacitor start-capacitor run type motor, a capacitor is used in series with Starting Winding. This determines the direction of rotation.
If capacitor is connected with running winding/main coil instead of starting winding/auxiliary coil then the direction of rotation is changed. That is, if you want to change the direction of rotation of the fan, just connect the capacitor with other winding.
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