Motor overheating in electric diaphragm pumps is a common issue that can lead to reduced pump efficiency, premature motor failure, and costly downtime. Identifying the root causes of overheating, such as inadequate ventilation, overloading, insufficient lubrication, improper voltage supply, excessive pump speed, worn-out components, and environmental factors, is essential for preventing this problem. By implementing the appropriate solutions—such as improving ventilation, optimizing pump operation, maintaining lubrication, ensuring stable voltage, and performing regular maintenance—pump operators can ensure that their diaphragm pumps run efficiently and reliably, extending the life of both the motor and the pump system.