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Few electric motors have a heat related shutoff, or fuse.

If the motor's bearings overheat - usually through drying out because of no lubrication (grease or oil) - they will eventually seize up so that the motor is overloaded and draws too much current. In that condition the circuit protective device (circuit breaker or fuse) should act to stop supplying the motor with current.

***Original answer***

Many electric motors have an internal thermal shut-off to protect against overheating.

Overloading will cause a motor to overheat and shut off. Check the amp draw and the condition of the bearings.

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โˆ™ 2011-05-16 09:24:16
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Q: Why would an electric motor overheat and stop?
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