What should the temperature of a water circulating pump be when running?

The temperature of a water circulating pump while running typically ranges between 140°F to 180°F (60°C to 80°C), depending on the specific application and design of the pump. If the temperature exceeds this range, it may indicate an issue such as overheating due to insufficient flow, blockage, or mechanical failure. Monitoring the temperature is essential to ensure the pump operates efficiently and to prevent damage. Always refer to the manufacturer's specifications for the optimal operating temperature for your specific pump model.