Replace Ceiling Exhaust Fan
Exhaust fans are a necessity for eliminating odors, ensuring good ventilation, and reducing moisture that leads to mold and mildew. If is often necessary to replace a malfunctioning or inadequate fan with a newer or more full-featured model. Modern exhaust fans are simple to wire and install, with adjustable brackets, color-coded wiring and detailed connection instructions. Replacing exhaust fans takes approximately an hour, but care and attention are always important when dealing with electricity.
Instructions
1. Measure the existing fan and purchase a new fan as close in size to the original as possible. This often allows the housing to be reused from the previous unit, saving time and complexity in installation.
2. Turn the power off to the fan, remove the grill cover and check the wires with a voltage detector to verify that there is no power to the unit.
3. Remove the old motor screws and detach the wiring harness so the motor will come loose from the housing. Unhook the vent's duct clips to release the duct from the housing also.
4. Disconnect the old housing by unscrewing its holders from the joists and pulling it through the hole in the ceiling. Be careful not to damage the hole in the ceiling material when removing the housing.
5. Place the new housing in the hole made for the old fan. If it is too small for the new housing, use a drywall saw to enlarge the hole to fit the housing. Do this by drawing around the housing with a pencil while holding it up to the ceiling. Cut the hole larger and then insert the housing into the hole.
6. Connect the housing to the joists and reconnect the existing ducting. Use the clips to make sure it is secure to the housing and will not come loose over time because of the fan's vibration.
7. Attach the motor and wiring for the fan, using wire nuts and electrical tape to secure the wires safely. Completely cover any exposed area of wire with electrical tape or the unit may short out or cause a fire. Install the new grate over the unit and turn the power back on to test for proper operation.
Tags: Ceiling Exhaust, come loose, electrical tape, exhaust fans, from housing,