How to Solve Common Troubles with Non-clogging Sewage Pump

Troubles & Solutions

Non-clogging sewage pumps play a key role in transporting wastewater containing solid materials and long fiber media. However, common issues during operation, such as pump failure to start, insufficient flow, and inadequate pressure, if not resolved promptly, it can severely affect the normal operation of the system. To ensure the efficient and stable operation of the sewage pump, it is essential to regularly check key components such as the power supply, motor, impeller, and to clean any blockages in the inlet and pump chamber. By promptly eliminating faults and performing maintenance, such as checking the cooling system, lubricating bearings, and replacing worn parts, the service life of the equipment can be effectively extended, preventing downtime and environmental pollution, and ensuring the overall reliability and efficiency of the system. The following are common troubles and solutions for non-clogging sewage pumps that you can refer to resolve problems encountered during pump operation.

The worker is troubleshooting the non-clogging sewage pump.

Troubles & Solutions

Troubles	Cause Analysis	Solutions
Insufficient flow or no water output	Impeller rotation error	Adjust the impeller rotation direction
	Check if the valve is open and intact	Inspect, maintain, and remove the faults
	Pipeline impeller is blocked	Clear debris
	Head is too high	Change the pump or reduce the head
	Medium density is relatively large	Dilute with water to reduce concentration
	Seal ring damaged	Replace the seal ring
Unstable operation	Impeller imbalance	Send to the manufacturer for replacement or calibration
Unstable operation	Bearing damage	Replace bearing
Pump cannot start	Phase loss	Check electrical components and circuits, and perform repairs
	Impeller jammed	Remove debris
	Stator winding burnt	Repair or replace winding
Excessive current	Low working voltage	Adjust working voltage
	Pipeline or impeller blocked	Clear pipeline and impeller blockage
	Density or viscosity of the liquid being pumped is too high	Change density or viscosity
	Using a head that is too low	Reduce flow rate, increase head
Insufficient pressure	Mechanical seal damage or leakage	Replace mechanical seal
	Cable damage	Replace cable
	Seal ring wear or damage	Replace the seal ring

By promptly identifying and addressing common troubles with non-clogging sewage pumps, and performing regular maintenance, their service life can be effectively extended, ensuring efficient and stable operation. If you encounter any unresolved issues during the use of the pump, please feel free to contact us, and we will do our best to assist you.