Turn off power to the ceiling fan at the breaker
Verify the power is off with a voltage tester
Remove the fan blades
Remove the light kit, if present
Disconnect the wiring connections
Support the fan while removing the mounting hardware
Remove the old mounting bracket
Install the new mounting bracket
Connect the new fan wiring to the house wiring
Secure the wire connections with wire nuts
Attach the fan motor to the mounting bracket
Install the fan blades
Install the light kit, if present
Tighten all screws and fasteners
Restore power at the breaker
Test the fan and light functions