When the choice, generally in the oil pump motor controller need to choose the right. Because the wrong choice, can make the motor controller overheating phenomenon, serious will cause burning motor controller. Below us, the cause of the oil pump motor controller overheating. 1. Because the proportion of medium exceed the gear oil pump motor controller, lead to the phenomenon of overheating. According to the use of measures: configuration of the motor controller to accord with the requirement of gear oil pump. 2. Because the shaft power does not accord with the requirement of the gear oil pump motor controller, lead to the phenomenon of overheating. For this kind of measures: according to the requirement of motor controller configuration. 3. Because of the packing gland pressure too tight or mechanical seal spring is too tight, lead to the phenomenon of overheating. According to the use of measures: adjusting gland or adjust the amount of spring compression. That's some cause of the oil pump motor controller overheating, hope to help everyone.