What is the reason why the booster pump makes noise intermittently when not in use?

1 Answers
McKayden
07/30/25 2:18am
The booster pump makes noise intermittently when not in use because there is a problem with the water return seal of the pump. Generally, the structure of the pump is relatively compact, and there is a switch inside the pump. The switch is controlled by the water flow in the pipe. As long as the water in the pipe is flowing, the booster pump will be activated, resulting in the noise problem. Below are the relevant precautions: Precaution 1: The motor coil is equipped with a safety protector. If the pump fails or cannot draw water, causing the motor temperature to exceed the specified value, it will automatically cut off the circuit. After troubleshooting and the motor temperature drops, it can automatically resume operation. The booster pump motor is a capacitor-run motor. The rotation direction has been adjusted when the pump leaves the factory. If you need to replace the capacitor or rewire, please connect the wires according to the arrow direction marked on the pump body. To ensure safety, be sure to use a three-core safety socket with a ground wire. Precaution 2: If water leakage is found in the pump, stop the machine immediately to check and prevent internal leakage. If there is water leakage at the connection with the motor, replace the mechanical seal. Check whether the power supply is connected. Ensure that the power supply voltage matches the working voltage of the pump.
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