I did clean good and there is power at motor....motor is shot I think
Actually, the motor is probably fine, the dry bearings are impeding the motor to the point where it won't rotate anymore.....
Bearing are dry as a popcorn fart and after 20 years, probably shot too. New fan time. You might try oiling the old ones, it may work, may not. If it has skate bearings, just pop the outer (or inner) seal off with a pointed object (like a pocket knife point or scriber and oil them and replace the cover. You should do that every spring when you blow it out. You got your money's worth at 20 years. Same applies to the combustion air fan.
I have around 20 years on my motors but they get oiled every spring, work like new, no noise, quiet as a mouse. My feed auger motors get oiled as well. and the gearboxes greased but that is for another time.
I take mine COMPLETELY APART every spring and clean and oil every component, clean the convection and combustion fan, vacuum out the combustion fan plenum and clean the venting plus I apply Stabil fogging oil to the interior of the firebox before the warm weather sleep. On mine, the auger motors have oil ports, make it easy. You only need to lube the outer bearing on the auger motors, the inner motor bearing is the gearbox bearing and it's running in the grease in the reduction gearbox.
Keep in mind that all the rotating components in ANY stove are running in an adverse atmosphere. it's hot, dry and dusty under the panels. Not an atmosphere conducive to longevity. They all need regular lubrication, or they fail.
Don't ever foresee replacing any drive motors ever, because they get the proper care and feeding, every spring.
