Noisy or broken bathroom exhaust fan? Chances are you don't need to replace the entire unit simply the fan or blower wheel. Order a new one online or from an appliance parts store. Here's how to install it. For more repair howtos, home improvement help, technology tips, garden hints, recipes, holiday ideas and more, visit the doityourselfstan YouTube channel @doityourselfstan or www.homefrontstan.com.