Reasons For Frequent Start Stop Of Water Pump

Mar 30, 2025

1. Due to the lack of check valves installed at the inlet and outlet of the self-priming pump by the user, the water quickly returns after the pump stops. After the outlet pressure drops below the preset pressure, the fully automatic variable frequency water pump will restart. The solution to frequent starting of this fully automatic variable frequency water pump is to install a check valve at the outlet of the self-priming pump to solve the problem.

2. Due to the faucet not being properly turned off or water flowing out from other areas causing a decrease in outlet pressure, the self-priming pump will automatically start. Checking the faucet's closed status and identifying where there is leakage is the solution to frequent starting of the fully automatic variable frequency water pump. If the leakage is not severe, using the HM type tap water household self-priming pump will not result in frequent starting and stopping.

3. Due to the long distance and high height of transportation, the required pressure is high, and the pressure set on the pressure controller cannot meet the usage requirements. To solve this problem, you can first open the controller cover and then turn the middle adjustment knob clockwise with a flat screwdriver to obtain a higher disconnection pressure.

4. The frequent starting of the fully automatic variable frequency water pump may also be due to the lack of gas in the pressure tank on the self-priming pump. Check whether the pressure tank diaphragm or bag is leaking. If there is a leak, pressurize and inflate or replace the pressure tank.