Many bathrooms have problems with moisture buildup, in which mold and mildew thrive. Exhaust fans, such as a NuTone exhaust fan, suck the moisture from the air and vent it outside. Older exhaust fans are often loud, which makes it hard to enjoy a relaxing shower. You may also notice that your old fan doesn't suck moisture out the way it used to. Purchase a new, quieter and more energy efficient NuTone exhaust fan from your local home builder's store.
Instructions
1. Turn off the electricity running to your fan from the main breaker box. Use a Phillips screwdriver to remove the screws securing the old fan cover to the ceiling, or pull the cover down slightly and squeeze the spring clamps on either side to release the cover. Gently lower the cover. Hold a circuit tester against the electrical wires to ensure you will not get a shock while wiring your new NuTone fan.
2. Pull the motor's side tabs out of the grooves in the mounting box and remove the motor. Some motors may be secured with screws; back out the screws with a drill and Phillips driving bit, holding the mounting box to the ceiling studs to remove the motor. Unwrap the foil tape from around the duct entering the mounting box from the side. Lower the mounting box from the ceiling.
3. Unscrew the wire nuts securing the electrical wiring together. If your exhaust fan doubles as a light, wrap a piece of masking tape around each electrical wire and label it either fan or light, depending on what it powers.
4. Hold a screwdriver on the round knock-out hole located on one side of the new NuTone exhaust fan. Hit the screwdriver's handle with a hammer to knock out the round metal piece. Push the duct collar onto the rectangular opening until it snaps into place on the mounting box's side.
5. Insert the electrical wires coming from the ceiling through the hole you just knocked out. Lift your new NuTone mounting box into the ceiling, through the hole. Put the duct from your ceiling over the duct collar. Wrap a piece of foil tape around the duct and duct collar to hold the duct in place.
6. Center the mounting box over the hole in your ceiling. Lower the box so its bottom edge rests slightly above the finished ceiling's surface. Extend the hangar bars until they touch the ceiling joists on of the box. Secure the hangar bars to the ceiling joists with 1-inch wood screws.
7. Connect the coming through the knock-out with the electrical wiring coming from the NuTone fan's blower motor; black to black and white to white. Twist a wire nut over each connection to hold the wires in place. If your new NuTone fan doubles as a light, make sure the black wire from the fan connects to the black wire you labeled "fan" and the black wire from the light connects to the you labeled "light." Same goes for the white wires.
8. Bend the green wire's ends into a U-shape with pliers. Loosen the green screw inside the NuTone fan's mounting box. Wrap the wire around the screw and tighten the screw to hold the wire in place.
9. Lift the motor into the mounting box. Line up the tabs on the motor's sides with the slots in the mounting box and snap the motor in place. Center the cover over the mounting box. Squeeze the springs on either side and insert them into the grooves in the mounting box. Release the springs and remove your fingers so the cover rests tightly against the ceiling. Restore power from your main breaker box.
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