Industrial Motors & Machining Blogs

What causes electric motors to overheat?

What causes electric motors to overheat?Electric motor overheating can cause major problems such as the loss of motor winding insulation, which can in turn cause the motor to burn up, necessitating a new motor. It's helpful to be familiar with common causes of electric motor overheating. This way, you can take the proper precautions to minimize the risk of your motor running too hot. At Industrial Motors & Machining, our local machine shop specializes in electric motor repair and maintenance in the greater Denver area. If you notice a sign of electric motor trouble, don't hesitate to come and see us. Here's a look at some of the common reasons that electric motors overheat.


Overloading can inflict substantial damage to winding and bearings. You'll want to familiarize yourself with the guidelines for operating load level for your motor before you use it, and then always stay in the proper range.

Clogged Ducts/Vents

It's a good idea to periodically check vents/ducts on electric motor-powered machinery. If they're all clogged up, then air may not be able to enter and provide cooling, and heat could build up excessively within the machine.

Frequently Turning On and Off

With some machines, the motor can become stressed by being constantly turned on and off, and it may become more prone to overheating. It's a good idea to check the guidelines for how often a particular electric motor-powered machine should be switched on and off, and then follow those specifications.

Environmental Issues

If your shop has a tendency to get very hot and/or humid, then there will be a greater risk of your electric motor overheating, so you'll want to make sure that the temperature is kept at a reasonable level. Also, in the Denver area, the high altitude may actually heighten the risk of an electric motor running too hot.

Electric Motor Repair in Denver, CO

When you need electric motor repair in Denver and the surrounding area, contact Industrial Motors & Machining Inc. at (303) 872-5981. At our local machine shop, we can address any of your electric motor needs. Feel free to give us a call today to ask us about our electric motor repair services!

Industrial Motors & Machining's Blog
Posted: February 2022

Written and Published By MORBiZ