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Check to see if induce draft motor comes on. it is the small motor. If it does not feel the motor to see if it is hot. Russ
Ok you have bad induce draft motor, The cheapest and easiest thing to do is replace induce draft assembly. You will get new motor,blower wheel and housing. The blower wheels are almost impossible to get off because of corrosion. I will try to find source for you.
Yes the wheel is most likely very corroded. Just google model number of furnace and add induce draft assembly. Several sites will come up. Russ