Are you looking to replace your fan?
I have had two fans go out on my in the last 1 year, both are Broan fans, probably have been running for over 20 years now.
There’s a good replacement for the Broan 663-B/688-B with A Housing.
Use the BP27 by Broan/Nutone.
* 50 CFM
* Fits Broan 662, 668, 669, 663 and 688-A, B, C, D, E Nautilus N688 bath fans
Replacement Bath Fan Motor and Wheel
* Fan assembly comes in pack of 6
* Replacement fan assembly for 50 CFM
* Motor fan easy to assemble and replace
* Used on Broan model numbers 663, 668, 669, and 668-A, B, C, D, E
Lowe’s sells the same fan for about $15.
https://www.lowes.com/pd_54042-14-BP27_0_?zipCode=91104&ddkey=http%3ASearchCatalogDisplay&newSearch=true&firstReferURL=http%3A%2F%2Fwww.lowes.com%2Fpd_54042-14-BP27_0_%3FnewSearch%3Dtrue%26catalogId%3D10051%26productId%3D1092217%26Ntt%3Dbp27%26N%3D0%26langId%3D-1%26y%3D0%26x%3D0%26Ns%3D%26storeId%3D10151%26Ntk%3Di_products%26ddkey%3Dhttp%3ASearchCatalogDisplay&catalogId=10051&productId=1092217&findStoreErrorURL=StoreLocatorDisplayView&selectedLocalStoreBeanArray=[com.lowes.commerce.storelocator.beans.LocatorStoreBean%406ba9155e%2C+com.lowes.commerce.storelocator.beans.LocatorStoreBean%4066f0155a%2C+com.lowes.commerce.storelocator.beans.LocatorStoreBean%4066d0155a%2C+com.lowes.commerce.storelocator.beans.LocatorStoreBean%4066b0155a%2C+com.lowes.commerce.storelocator.beans.LocatorStoreBean%407d29155b]&Ntt=bp27&N=0&URL=TopCategoriesDisplayView&langId=-1&y=0&x=0&storeId=10151&Ntk=i_products#
It apparently works well.
You can buy the BP27 from Ace Hardware for about $19.
Bath Fan Motor & Blower Wheel (Bp27)
Amazon has the same model from various resellers for about 10-$15, so you can save a little money!
