How to troubleshoot and repair common faults of SB electric liquid pump?

SB series electric liquid pumps adopt tubular axial flow design, with common faults mainly concentrated in flow abnormalities and motor operation instability.

For sudden flow reduction or no flow, check and clean the inlet filter, inspect impeller wear (replace if wear exceeds 1mm), and examine O-ring seals for aging or deformation.

Motor overheating issues may be caused by unstable voltage, excessive medium viscosity, or mechanical jamming - solutions include maintaining voltage within ±10% of rated value and checking bearing operation condition.

Startup difficulties typically require checking power supply, verifying mechanical parts aren't stuck, and inspecting motor condition for potential damage.

Abnormal noise during operation can be addressed by examining bearing clearance (replace if exceeding 0.5mm), rebalancing the impeller, and tightening all connection bolts.