How To Install A Bathroom Exhaust Fan Into An Existing Light Fixture

You can use the existing switch wires and ductwork.

How to install a bathroom exhaust fan into an existing light fixture. Loosen the screw at the clamp that secures the vent tube at the existing fan housing. Measure the ceiling opening and determine if it is large enough to accommodate your new fan. Also it helps to get a fan that s the same size as your existing fan so you won t have to adjust the size of the ceiling hole.

Next you will connect the exhaust fan wiring to the existing ceiling fixture wiring. Run cable to the fan and to the switch if no wiring is present. Plug the fan motor into the built in receptacle.

I would like to replace the switches with 3 poles so the light can be controlled from inside or outside the bathroom. Mount a ladder or stepladder and remove the light globe or cover from the existing light fixture by unscrewing the holding screws by hand. You will need to run 3 wire cable between your new exhaust fan and the existing switch.

Loosen and remove the screws where. If you are installing a fan with a light you ll need to run a three wire cable from the switch to the fan. The fan and light are each controlled by their own 2 pole switch one is inside the bathroom and one is outside.

Installing an easy install fan in existing construction switch off the power at the fuse box. Remove the existing fan leaving the old duct work and wiring. Locate the switch cable which must be glued through the top or side of the box that serves the fan or the light.

Then you will need to remove the old switch and replace it with a double switch at that electrical box. Slip the fan and light assembly into the housing and connect the electrical plug to the socket on the access panel. The installation is easiest if you re replacing an existing fan.