Originally Posted by eagleiiii
I understand it is an expensive part to replace.
Where are you looking? if you web search, you're quite likely to come across Americanhvacpro, that place is a rip off on just about everything. I replaced a draft inducer on an older Rheem that used a spider type and they were charging $200 for a generic Fasco. I used the part # on the old part and searched around. Got the same exact generic Fasco for $60 on a different site.
The bearing in inducer motor in my Rheem/Ruud actually seized up and inducer stalled causing the centrifugal switch to not activate when it was 18 years old. How old is yours? If you spin the shaft and you feel any drag, grittiness or hear something unusual, the bearings are probably going. I oiled mine and it got me by for two days, but ended up without heat for a week while the new inducer was on my way.
The supply house and contractors work together to protect business for contractors by refusing parts sale to consumers, which is a very strong cultural trait of HVAC trade. When I asked a few HVAC companies to bid to replace draft inducer, they quoted ~$500.