How do I Know if My Vacuum Motor is Bad? A Step-by-Step Guide to Diagnosing Vacuum Motor Issues.
If your vacuum cleaner is lacking suction power or is making unusual noises, then it could be a sign that the vacuum motor is bad. You may also notice a burning smell or excessive heat coming from the motor. If these signs persist even after cleaning or replacing the filter and checking for clogs, then it’s best to consult a professional or replace the motor.