If the existing wiring has only 1 switch for control and the power comes to the switch first then you can only control power to the ceiling fan assembly via the switch and you have to control the fan and the light with the pull chain switches when the wall switch is on.
Ceiling fan speed controller wiring.
Ceiling fan switch wiring diagram 2 line voltage enters the switch outlet box and the line wire connects to each switch.
Leviton fan speed controls change the level of power in the fan motor to control the speed of your fan.
Connect the three grounding wires green green yellow stripe or bare copper coming from the ceiling fan rated electrical box the downrod attached to your fan and the ceiling bracket.
Wiring a ceiling fan s wiring is integral when it comes to controlling its speed.
Connect the green copper wires together.
Wire up the fan speed switch control switch by following the normal wiring standards.
In order to control the fan s speed the fan needs its own system of wires separate from that of the lighting element.
Connect white wires together.
This wiring diagram illustrates the connections for a ceiling fan and light with two switches a speed controller for the fan and a dimmer for the lights.
Variable speed controls must be specially designed for use with ceiling fans.
Connect the black wire from the ceiling to the black and blue wires from the fan.
Make sure that all of the wires are first pulled through the electrical box to ensure that the face place will fit securely against the wall.
The fan control switch usually connects to the black wire and the light kit switch to the red wire of the 3 way cable.
Connect the white wire from the ceiling to the white wire from the fan.
And other one is using a dimmer switch from which we can control the rpm revolutions per minute of ceiling fan or other fan motor.
Wiring ceiling fan and light with one switch this method allows you to turn on the fan and the light from one single wall switch cutting out the necessity to use the pull chain every time you want to adjust the fan.
From the switches 3 wire cable runs to the ceiling outlet box.
If you install a ceiling fan without wiring it properly it may prove impossible to operate the fan without the light on and vice versa.
The source is at the switches and the input of each is spliced to the black source wire with a wire nut.
The live black wires should be connected to the brass screws.