A 4-wire pull chain switch has four terminals, but 3 speed switches are not all wired alike. The terminal number order, the terminal the black wire attaches to, and the connections inside the switch change from one model to the next.
Safety: turn off the breaker and test that the fan is dead before touching wires.
Match your exact model. These three things differ between 3 speed switches:
- The order the terminal numbers run: clockwise or counterclockwise.
- The terminal the black (hot) wire attaches to: L, 3 or another.
- Which terminals each pull position connects.
A diagram for one model can wire another one wrong, so find your number below.
Pick your model
Need more speeds or a reverse switch? See all wiring diagrams. Ready to buy? Browse 3 speed switches. Not sure which number you have? Use the Ceiling Fan Switch Guide.
Questions about 3 speed, 4-wire switches
Are all 3 speed, 4-wire fan switches wired the same?
No. The terminal number order (clockwise or counterclockwise), the terminal the black wire attaches to (L, 3 or another) and the connections inside the switch differ by model. Match all three to your old switch, or use the diagram for your exact model.
What does 4-wire mean on a fan switch?
Four wires connect to the switch: one brings power in, and three carry power to the fan motor for the three speeds.
How many pull positions does a 3 speed switch have?
Four: Off plus three speeds. The order and the connections at each position depend on the model, so use the table on your model’s diagram.
Can I use a 3 speed switch on a 2 speed fan?
No. A 3 speed switch needs a fan with three speed wires. A 2 speed fan only has two, so it needs a 2 speed switch.
What if the wire colors on my fan do not match?
Colors vary between fans. Go by the terminal letters and numbers on your old switch, not by wire color, and take a photo before removing anything.