The reasons for frequent automatic start and stop of self priming pumps may include the following:
1. Insufficient water intake: The self priming pump requires a certain amount of water intake flow to function properly. If the water intake is too small, air will appear inside the pump, causing it to automatically start and stop.
2. Leakage in the inlet pipeline or pump body: A self priming pump needs to establish a negative pressure inside the pump body in order to suck liquid into the pump. If there is leakage inside the pump body or in the inlet pipeline, the negative pressure cannot be formed, causing the pump to automatically start and stop.
3. Unstable power supply voltage: Self suction pumps require a stable power supply. If the power supply voltage is unstable, the pump motor will frequently start and stop.
4. Internal scaling or foreign object blockage of the pump: If there is scaling or foreign object blockage inside the self priming pump, it will affect the normal operation of the pump and cause frequent start and stop of the pump.
5. Pressure switch failure: Self priming pumps are usually equipped with a pressure switch to control the start and stop of the pump. If the pressure switch fails, it will cause the pump to start and stop frequently.
If the self priming pump frequently starts and stops automatically, it is recommended to check whether the water intake is sufficient, whether the pump body and inlet pipeline are leaking air, whether the power supply is stable, whether there is scaling or foreign object blockage inside the pump, and whether the pressure switch is normal. Take corresponding solutions according to the specific situation. If the problem still exists, it is recommended to contact professional maintenance personnel for maintenance.
