To replace a bathroom fan, first turn off the power to the fan at the circuit breaker. Remove the fan cover and unscrew the fan from the mounting bracket. Disconnect the wiring and ductwork from the old fan. Install the new fan by reversing these steps, ensuring all connections are secure.

Replacing a bathroom fan involves turning off power, removing the old fan, and installing the new unit. Proper connection and mounting are essential for effective ventilation.