How to Replace a Bathroom Fan Light
The fan light in your bathroom serves 2 purposes. It provides needed lighting in your bathroom and also removes moisture in the air of your bathroom and passes it outside. Removing the moisture from the air in your bathroom reduces mold and mildew. If you need to replace the bathroom fan light, you can do so rather quickly and easily. In fact, installing and new bathroom fan light shouldn't take you more than an hour. Just follow these steps.
Step 1 - Turn Off the Power
Go to your circuit breaker box and make sure the power going to your bathroom is switched off.
Step 2 - Remove the Old Bathroom Fan Light
Setup your ladder, and have someone hold it for you while you remove the old bathroom fan light. You may have to use a putty knife or flat head screwdriver to score the edges of the cover of the bathroom fan light if the bathroom has been painted. Remove the light bulb from the unit and set it aside. If possible, remove the entire unit from the ceiling. For some units, you may have to go into the attic to remove the duct work from the exhaust fan. Disconnect the wiring.
Step 3 - Install the New Bathroom Fan Light
Place the new bathroom fan light in the exact same position as the older unit. In some cases, the new bathroom satellite will be bigger than the old unit. Use your pencil to trace around the edges of the new bathroom fan light, then take your jigsaw to saw enough of the ceiling so that the new unit will fit easily. Use the screws that came with the new bathroom fan light to secure the new unit to a joist using the provided support brackets.
Step 4 - Reconnect the Wiring
Reconnect the wiring from the circuit breaker box to the new bathroom fan light in the same way that it was connected on the older unit. Insulate the connections with new wire nuts or high-quality electrical tape.
Step 5 - Reconnect the Exhaust Hose
Reconnect the exhaust hose that leads from the outside of your home to your bathroom exhaust fan light. If the old duct tube does not fit the new exhaust fan, you may have to purchase new duct tube from a local home improvement store. In some cases, your new bathroom fan light may come with an adapter or tube.
Step 6 - Cleanup
Use a damp cloth to wipe the new bathroom light clean, removing any dust or debris that may have settled on it during installation. At this time, install the light bulb.
Step 7 - Power it Up
Turn on the breaker that provides power for your bathroom and test the new bathroom fan light. If it works properly, you're finished. If it does not work, remove the cover and check the wiring connections again.