Fix a Noisy Bathroom Fan

Easy fix for an annoying exhaust fan

Noisy bath fans are annoying and often don't get used, resulting in moisture problems. Replace them with a quiet fan and motor without taking out the housing using a universal replacement kit.

By the DIY experts of The Family Handyman Magazine

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Replacement procedure

A new kit from Broan and NuTone lets you cut fan noise almost in half (meaning the fan is barely audible). Installing the new fan and motor only takes about 10 minutes, with no rewiring or duct work required. The kit works on most Broan, NuTone and Nautilus fans—most bath fans are one of these brands. The Bath Fan Upgrade Kit is simply a quieter replacement fan that fits in the existing housing, so there's no need to rip up the ceiling, and the new grille gives your fan a new look.

The more powerful motor in this quieter fan means the fan will do a better job of ventilating the room. Buy the kit (No. 690) on Broan's Web site ( or at most home centers. Everything you need is contained in the kit, including the wrench.

If you have a grille other than the two shown here, the upgrade kit won't work on your fan.

Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

  • 4-in-1 screwdriver

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

  • Bath fan upgrade kit

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