The wiring will need to be reconfiguration to allow routing the power through the new switch and then to the device to be switched separately. The wires are already where you need them to be so you dont have to run new ones.

Ne 2051 Wiring Circuit For Bathroom Fan Schematic Wiring
Wiring a bathroom light and fan on a separate switch. By wiring the two separately you can control each independently resulting in a more efficient bathroom. Bathroom exhaust fans with built in light fixtures are fairly common. A separate cable will need to be installed from the wall switch box to the junction location where the wiring is located for the exhaust fan and the light. Separate switches for bath fan and light from single switch in a 1960s house duration. If you have one of these you may have fastened the fan and light to separate the switches. And one easy way to waste electricity is by having a bathroom fan and light that do not work independently.
How to wire a bathroom fan and light on one switch bathroom exhaust fans with built in light fixtures are pretty common. Wiring a combination bathroom ceiling exhaust fan and light unit with the fan and light being controlled by separate wall switches is an easy project even for a beginner. Light fan led switch https. Now youd like to operate both of them from the same switch. If you have one of these you may have wired the fan and light to separate switches. Sure the fan is great to have on during a shower but its unnecessary when brushing your teeth.
Diy bathroom wiring. Now they would like to operate both of the same switch.