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Common causes of electric motor failure

Electric motors are exposed to multiple mechanical, thermal, and electrical stresses. A failure can lead to costly production downtime, major repairs, or even full motor replacement. Moteurs Gosselin helps you identify the most common causes of electric motor failure so you can better protect your equipment. Have questions? Contact our specialists anywhere in Canada and the Northeast USA!

Understanding failure causes to extend motor lifespan

Most electric motor failures can be avoided through proactive monitoring and proper maintenance. Failures often result from poor operating conditions, faulty connections, or lack of preventive care. At Moteurs Gosselin, we provide diagnostics, repairs, and preventive strategies to minimize downtime and reduce long-term costs.

Most common causes of electric motor failure:

  • Overheating due to blocked ventilation, hot environments, or prolonged overload
  • Excessive vibration caused by misalignment, imbalance, or unstable mounting
  • Improper shaft alignment between the motor and driven equipment
  • Insufficient or incorrect bearing lubrication
  • Contamination (dust, moisture, chemicals)
  • Electrical issues (power surges, phase imbalance, incorrect wiring)
  • Normal wear and insulation breakdown of internal components

Warning signs of impending motor failure:

  • Unusual noises
  • Abnormal vibration
  • Localized overheating
  • Slow startup or difficulty reaching full speed
  • Burning smells or visible discoloration
  • Frequent circuit breaker trips

Services offered:

  • Motor failure inspection and diagnostics
  • In-shop or on-site repairs
  • Full motor rewinding
  • Laser alignment and dynamic balancing
  • Bearing and ventilation unit replacement
  • Technical reports with recommendations
  • Customized preventive maintenance plans

Why choose Moteurs Gosselin?

  • 40 years of industrial motor expertise
  • Advanced diagnostic tools and equipment
  • Certified team for all motor types (AC/DC)
  • Fast response and 24/7 emergency service
  • Genuine OEM parts with manufacturer warranty
  • Pickup and delivery across Canada and the Northeastern USA
  • Complete post-service reports
  • 24/7 support and availability

Service Area

We serve all of Canada, including Toronto, Montreal, Ottawa, Calgary, Edmonton, Vancouver, and Halifax. In the Northeastern U.S., we serve Boston, Worcester, Manchester (NH), Hartford, Portland (ME), Burlington (VT), and more.

FAQ – Electric motor failure

What’s the most common cause of motor failure?
Overheating due to blocked ventilation or prolonged overload is one of the most frequent causes.

Can vibration damage a motor?
Yes. Vibration accelerates wear on bearings and internal components, which can lead to serious failure.

How can I prevent motor failure?
With a preventive maintenance plan that includes lubrication, regular inspections, alignment checks, and electrical testing.

What should I do if my motor shows signs of failure?
Shut off power, avoid forcing operation, and contact Moteurs Gosselin immediately for diagnostics.

Avoid electric motor failure with Moteurs Gosselin!

Act before your motor breaks down. Contact Moteurs Gosselin for fast inspections, accurate diagnostics, a full maintenance plan, or a detailed quote. Take advantage of our complete range of services across Canada and the Northeastern United States—available 24/7.



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