Huh?
This site doesn't repair anything. It's just a place where casual visitors ask questions and other casual visitors offer advice
This may be of some help:
https://howtomendit.com/answers.php?id=257510
Are you sure there are no model numbers, makers ID or any rating plate on the motor itself?
I would open up the working unit, connect test leads across the motor. Reassemble. Connect test leads to a voltmeter, set on high range AC, operate motor. Switch between DC and AC until you get some kind of sensible reading then adjust the range till you find the voltage.
Having said all that, m money would be on a mains voltage motor.
Fghhdds
November 2020