There will be some problems in the operation of the hot water circulation pump, such as burning and energy consumption, Understand and pay attention to the operation of circulation pump can prolong their service life, reduce after-service time and be surly reduce your trouble, especially during heating season. Open the outlet valve before opening, and slowly open the outlet valve according to the model of the hot water circulating pump until it runs normally.

1. Open the water inlet valve before opening the high and low temperature circulating pump.

2. Start the motor and listen carefully to the sound of idling of the hot water circulation pump. If idling occurs when checking, check whether the water level is higher than the pump body.

3. Pay attention to whether the pressure gauge has pressure, check whether the water level is higher than the pump body.

4. After opening the circulating pump, contact the motor with the back of the hand to see if it is over temperature, and leave after normal operation.

5. If abnormal sound or large noise is found, report it in time and wait for maintenance.

6. If it is found that the circulating water pump or motor is stuck or not running, the motor noise is too large, and the motor line is out of phase, it should press the emergency stop button immediately, and report to wait for repair and treatment after stopping.

7. It is normal to have a little dew when checking the water pump. At this time, it is necessary to cool down. If there is a big dew, please report it in time and wait for maintenance.

8. Pay attention to open the valve before starting the pump, stop the pump first stop and then turn off. Circulating pump valve is normally open valve state.