Lifespan of a professional vacuum cleaner motor
A professional motor lasts 1,000 to 2,500 hours depending on the brand and intensity of use. For a vacuum cleaner used 4 hours a day, 5 days a week (approximately 1,000 hours per year), the lifespan is 2 to 3 years. With intensive hotel use (8 hours per day), it drops to 12-18 months. The quality of the filtration system (bag + filter) is the number one factor in motor longevity.
Motor brushes: the number 1 wear part
The carbon brushes (or commutator brushes) are two small cubes of carbon that rub against the motor's commutator. They wear down at a rate of approximately 1 mm every 200 hours. When their length drops below 8-10 mm, they lose contact and the motor stops. Cost per part: €5 to €15, replacement takes 15 minutes.
Diagnosis: engine or other part
Before replacing the motor, check the power cord (common problem #1, see our category /vacuum-power-cord), the switch, and the plug. On a vacuum cleaner over 8 years old, the cost of a new motor can exceed 50% of the price of a new machine—this is the moment to decide whether to repair or replace.
Original or compatible: which engine to choose
For the motor, we always recommend the original manufacturer's part. A compatible motor may seem equivalent in power but doesn't always meet bearing tolerances, vacuum cleaner balance requirements, or the manufacturer's warranty. The 10-20% price difference is more than offset by the increased reliability.