Are you tired of your Broan 688 exhaust fan making too much noise or not functioning properly? It might be time to consider a replacement. This article will guide you through the process of selecting and installing a new exhaust fan, helping you maintain a comfortable and safe home environment.
The Broan 688 is a standard exhaust fan used in many homes, but advances in technology have led to newer, quieter, and more energy-efficient models. Replacing your old fan with an updated model can greatly improve your indoor air quality, reduce noise levels, and even help lower your energy bills.
Choosing the Right Replacement Fan
Before you rush out and buy a new exhaust fan, there are several factors you should consider to ensure you get the right one for your needs.
First, measure the size of your current fan's housing. Most Broan 688 fans are 8 inches in diameter, but it's essential to double-check this measurement before making a purchase. Also, be aware that some replacement fans may require minor adjustments to your existing housing or ductwork.
Fan Type
Exhaust fans come in two main types: belt-driven and direct-drive. Belt-driven fans are generally cheaper and quieter, while direct-drive fans are more expensive but offer better performance and longer lifespan.
If you're replacing an existing belt-driven fan like the Broan 688, you might want to consider upgrading to a direct-drive fan for better airflow and durability. However, if noise levels are a significant concern, a belt-driven fan might be a better choice.
Airflow and Noise
The airflow capacity of an exhaust fan is measured in cubic feet per minute (CFM). Choose a fan with a CFM rating appropriate for the size of your space to ensure adequate ventilation.
Noise is measured in sones. The lower the sone rating, the quieter the fan. If noise is a concern, consider selecting a fan with a low sone rating or one that offers a timer or remote control for operation during sleep or quiet periods.
Installing Your New Exhaust Fan
Once you've chosen the perfect replacement fan, it's time to install it. If you're comfortable working with electrical components, this is a DIY project you can tackle yourself. However, if you're unsure about any aspect of the process, it's always best to consult with a licensed electrician.
Before beginning, make sure to turn off the power to the old fan at your home's main electrical panel. Always double-check that the power is off by using a non-contact voltage tester.
Removing the Old Fan
First, remove the fan blades and motor from the old fan. Then, remove the fan housing from the ceiling by unscrewing the mounting screws and carefully lowering it down.
If your new fan is a different size, you may need to adjust the ductwork or housing to accommodate it. Be sure to follow any installation instructions provided by the manufacturer for specific size adaptions.
Installing the New Fan
Position the new fan housing in place and secure it with mounting screws. Next, connect the electrical wires from the new fan to the existing electrical wires, ensuring that the polarity is the same (black to black, white to white, and green or bare copper to green).
Finally, reattach the fan motor and blades, ensuring they spin freely in the proper direction. Replace the cover grille and turn the power back on at your electrical panel. Test your new fan to ensure it's working correctly.
Replacing your Broan 688 exhaust fan can significantly improve your home's ventilation and air quality. By carefully considering your options and following the installation steps outlined above, you can breathe easier knowing you've chosen the perfect replacement fan for your needs. Don't forget to test your new fan regularly to ensure it's functioning correctly and providing optimal ventilation for your home.