Should you repair energy-efficient motors?

The decision to repair, rewind or replace a failed energy-efficient motor should be taken carefully. A well-informed decision to repair or replace a failed motor often involves more than might be readily apparent. When a motor fails, the first step is to determine its suitability for the application. Rather than repair, a better choice in this instance would be a TEFC (totally-enclosed, fancooled) replacement. Processes and duty cycles can change over time, so it?s always best to reassess the application when deciding whether to repair or replace a failed motor. When the motor has had a catastrophic failure, one should compare the cost of repair and replacement. In such cases, replacement may be the most economical option, especially when the motor?s suitability for the application is questionable. Surface smearing of the outside diameter can often be repaired economicall. The shaft, frame or other mechanical parts may also be damaged beyond repair. Whether the choice is to repair or replace the motor, one should be certain to identify and address the underlying causes of failure to prevent a recurrence.