How to Replace Broan 670, 671 and 688 Bathroom Fan Assembly

Cleaning, repairing or replacing a Broan 670, 671 or 688 bathroom fan? This video provides step-by-step instructions for properly disassembling an exhaust fan and how to extract the fan assembly.
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[@Soudaiyou]

Showing how to pop out the fan with the screw driver made this stupidly easy. Thank you! And for anyone that has a model 57N2, the 688 can replace it no problem. It has the same slots.

[@mpsmoov128]

just replaced a 20yr old Broan that finally died. left the housing and easily put the new motor in. Thanks for making a product that works for a long time and isn't overly complicated!

[@BroanNuToneLLC]

You are very welcome and thank you for sharing your experience with us!

[@stephenbrown7545]

God Bless You.@@BroanNuToneLLC

[@chrisb508]

Thanks! You just saved me an hour or so.

[@Bloodyfluftheirain1008]

Awesome video, thank you!

[@VanVan-zr3vy]

❤Thank you for your video

[@Omega_Mojo_Jojo]

Thank you so much!

[@fidelmederos688]

Thanks

[@derekcathers140]

Can you provide a part number/replacement fan for an old F684-1? The label says it fits a H670 housing.

[@BroanNuToneLLC]

Thank you for your question. Unfortunately, we do not see that model number in our system. Please call our Product Support Team at 800-637-1453 so we can provide direct assistance.

[@kevinh2043]

Good Morning Chuck. I have a 671CB for use with 671/672CA that is discontinued, and I can't find a replacement for it on Broan NuTone website. Any suggestions to find a model number that will fit?

[@BroanNuToneLLC]

Good Morning, Unfortunately, we are having some difficulty locating your model number in our system. Please call our Product Support Team directly so we can assist you. If you are in the US, please call 800-637-1453, if you are located in Canada the number is 800-567-3855.

[@alsr1751]

Can new 671 fan assembly fit/snap into an older 688 housing? I would like to have the the higher CFM but don't want to remove the existing fan box. Thank you

[@BroanNuToneLLC]

Thank you for your inquiry. Unfortunately, parts are not interchangeable between those units. The Fan assembly you would need would vary depending on the revision you have installed. Please call our Product Support Team at 800-637-1453 for assistance.

[@Gigmeister1]

Can this model retrofit an older 658 model? Thanks.

[@BroanNuToneLLC]

Thank you for your question. Unfortunately, parts are not designed to be interchangeable between all models. This unit would not be a good fit for your unit. Please reach out to our Product Support Team at 800-637-1453 so we can provide parts assistance.

[@BillRogers-n6s]

Jason, What SIZE is the allen head set screw that holds the squrriel cage onto the motor shaft? I have an entire building to do and want to purchase the correct tool

[@BroanNuToneLLC]

Thanks for your question. The wheel simply pulls off. There is no set screw on the model 670, 671, or 688.

[@camsasser]

Does the fan assembly come separately without buying a new housing? Or do we buy the whole thing and just replace the fan assembly & throw out the new housing?

[@BroanNuToneLLC]

Thank you for your question. For a large number of our models, you can purchase the fan assembly separately. We recommend calling our Customer Service Team at 800-637-1453 with the Model and revision letter of your fan. This way we can provide the most accurate compatible parts information.

[@camsasser]

@@BroanNuToneLLC Thank you!

[@itsmelili326]

Just a $ tip ..Buying just the assembly costs around $50-60 at Broan . This entire setup at Lowes $22.

[@AW-uf7yv]

I have a 671RB…the housing appears to be 9”X9”. Having a hard time finding a replacement the same size. Any advice?

[@BroanNuToneLLC]

Thank you for your inquiry. The replacement fan assembly for the 671RB is part number S97017708. Unfortunately, there is no direct replacement for that complete unit. If you are looking to replace the entire unit, the suggested replacement is model A110. This is based on performance only as this unit has a different housing. Please call our Product Support Team at 800-637-1453 if they can be of additional assistance.

[@AW-uf7yv]

@@BroanNuToneLLC thanks!

[@janicelloyd3215]

I need a replacement for Broan model 674a , can’t find it. Which Broan replaces it ?

[@BroanNuToneLLC]

Thank you for your question on the model 674. This model was a fan-only model that used a housing size of 8" x 8-1/4". We no longer manufacture a fan-only model with this size housing. We do have replacement parts available should you care to repair this model. Please contact our Customer Service team for parts assistance at 800-558-1711.

[@Jason23P]

my current bathroom fan is this size but the duct is on the other side? is the duct moveable? thanks!

[@BroanNuToneLLC]

Good Morning, Unfortunately, the duct is not moveable on any of our bath fan units.

[@SicanguLakota4rmSouthDakota]

Our broan bathroom fan was just installed last summer and doesn’t work today vacuumed it still doesn’t work i need suggestions on how to pin point what the problem is and FIX it i dont have money to buy a new one

[@BroanNuToneLLC]

Good Afternoon, Thank you for contacting us regarding your ventilation fan. The motor assembly (motor, wheel, and bracket) can be unplugged and removed from the housing. You can then plug in the motor to an outlet and see if the motor has failed. Using an extension cord from a good outlet up to the motor can give you the same information. The motor assembly is replaceable and can be removed and replaced. Please contact our Product Support team directly for more assistance at 800-637-1453.

[@SicanguLakota4rmSouthDakota]

@@BroanNuToneLLC thank you so much for the info ill try it but we have two fans and both of them gave out some time last night so im thinking an electrical problem but im going to try and your suggestion if nothing call the number thank you sir

[@jillhughes723]

Easy my foot!!! Typical of an 'engineer. ' Try doing this on a ladder with the box in the ceiling!

[@BroanNuToneLLC]

Good Afternoon Jill, We would be happy to offer any support needed regarding the installation of the ventilation fan assembly. Please contact our Product Support team directly at 800-637-1453.

[@HelsinkiPink]

688 is really loud

[@BroanNuToneLLC]

Good Afternoon, Thank you for your feedback on the model 688. This model is rated at 50 cfm's with an audible 4.0 sones for privacy in the bathroom. If you are looking for a model with a lower sone rating, please contact Customer Service directly for more product assistance at 800-558-1711.

[@jimbanter]

Useless

[@BroanNuToneLLC]

Good Morning, We are sorry to hear you did not find this video helpful. Please call our Product Support Team at 800-637-1453 so that we can assist you directly.