Under what circumstances should a centrifugal pump be replaced?

1. Low Liquid Output & Weak Spraying Pressure

Fault Cause：Internal impeller wear, pipeline blockage, pump aging or power supply unstableSolution：Replace new impeller pump directly; clean liquid pipeline and filter screen; check wiring contact to ensure stable power input.

2. Pump No Liquid Suction & Fail To Work

Fault Cause：Air inside pump cavity, liquid tank insufficient liquid, reversed installation directionSolution：Add enough spraying liquid to exhaust internal air; confirm positive installation direction; check inlet pipe for leakage.

3. Abnormal Noise & Vibration During Operation

Fault Cause：Internal parts loose, impeller stuck by impurities, bearing worn outSolution：Take out pump to clean internal sundries; replace damaged pump assembly; fix installation position firmly.

4. Pump Easy To Block Frequently

Fault Cause：Liquid mixed with sediment, fertilizer residue and large particlesSolution：Filter liquid before use; clean pump flow channel regularly; upgrade anti-clogging durable impeller pump.

5. Pump Overheat & Automatic Stop Working

Fault Cause：Long-time continuous overload work, coil aging, poor heat dissipationSolution：Properly rest the drone after long operation; replace overheated faulty pump; keep good ventilation environment.

6. Liquid Leakage At Pump Joint

Fault Cause：Sealing ring aging damaged, interface loose, thread wearSolution：Replace sealing gasket; tighten connecting interface; use matched original standard pump for tight fitting.