Common Troubleshooting Of Submersible Sewage Pump Impeller

Oct 25, 2024

The commonly used submersible sewage pumps have stable sewage treatment performance, provided that the appropriate model and material are selected. Professional water pump manufacturers will recommend users to provide data and help with selection. There is no one more familiar with structure and performance than pump manufacturers. This type of selection has a long service life and fewer problems with malfunctions. Long term use of submersible sewage pumps is inevitable to have malfunctions. What are the faults? How to handle it?

1. Low impeller speed of submersible sewage pump: Many customers find that the impeller speed is low after starting a submersible sewage pump. This may be due to incorrect wiring.

2. Low flow rate or no discharge of submersible sewage pump: It may be due to blockage of components such as inlet filter screen, sewage pump impeller, pump casing, water supply pipe, or a broken outlet pipe in the pool. When encountering a submersible sewage pump that does not discharge water, immediately cut off the power and stop the machine for inspection, and clean up any blockages.

3. After connecting to the power supply, the impeller does not rotate and the winding is burned out: due to the impeller or other rotating parts being stuck by debris, the motor does not rotate, the overcurrent protection device fails, and the stator current suddenly increases, thereby burning out the winding. At this point, the power should be cut off first, and the circuit should be checked to see if there are any blown fuses or disconnected circuits. If the circuit is normal, it is likely that the stator winding of the motor is burnt out.

4. Leakage of submersible sewage pump: Leakage of submersible sewage pump is the most dangerous problem, endangering personal safety. Long term use of submersible sewage pumps can cause severe wear on the mechanical sealing surface, leading to water infiltration and leakage into the motor winding. You can place the submersible pump in a dry environment, replace the mechanical sealing surface, and then the submersible sewage pump can be put back into use.