Troubleshooting

Pump will not start or run after connecting the power

Pump will not start or run after connecting the power

Symptom Possible Cause(s) Corrective Action Cable broken Cable connected badly Motor copper damaged Protector executed Defective protector Fuse broken ...

The pump hums, but it does work.

The pump hums, but it does work.

CSymptom Possible Cause(s) Corrective Actionorrective Action The pump hums, but it does work...

Operation stops suddenly

Operation stops suddenly

Operation stops suddenly Low voltage Capacitor inefficient Voltage is not balance in 3-phase pump....

Pump operates but delivers little or no water

Pump operates but delivers little or no water

Pump operates but delivers little or no water Over-head cause little water. Head over-loss 3-phase motor operates in reverse rotation...

Vibration hugely

Vibration hugely

CSymptom Possible Cause(s) Corrective Action corrective Action Impeller worn out Reverse rotation Defective bearing...

Electric leakage when contacting the pump

Bad isolation and electric leakage.

CSymptom Possible Cause(s) Corrective Action Bad isolation and electric leakage Stop use and maintain...

Symptom Possible Cause(s) Corrective Action
Pump will not start or
run after connecting
the power
Cable broken Replace cable
Cable connected badly Connect complete
Motor copper damaged Rewire
Protector executed Check the action causes the reason
Defective protector Replace overload protector
Fuse broken Replace fuse
Symptom Possible Cause(s) Corrective Action
The pump hums,
but it does work.
3-phase pump is phase shortage due to 1-phase connected badly Connect completely
Switch is connected badly in the 3-phase motor. Adjust the contacted parts
Cable is broken Replace
Broken fuse Replace
Outlet of the cable is connected badly. Connect complete
Copper of motor is broke. Rewire
Defective bearing. Replace
Defective capacitor of 1-phase pump. Replace
Defective switch of 1-phase pump. Replace
Defective impeller Remove the impeller, clean it
Low voltage Adjust power and voltage
Capacitor inefficient Change bigger capacitor
Symptom Possible Cause(s) Corrective Action
Operation stops

suddenly
Low voltage Adjust the power, voltage
Capacitor inefficient Replace bigger capacitor
Voltage is not balance in 3-phase pump. Adjust power
Defective protector Replace
Defective motor copper Rewire
Viscosity of the liquid is too gluey. Contact to the manufacturer
The ratio of mixed liquid is to much Contact to the manufacturer
Temperature of the liquid is too high. Contact to the manufacturer
3-phase motor operates in reverse rotation. Exchange either 2 prongs of 3 prongs
Symptom Possible Cause(s) Corrective Action
Pump operates but

delivers little or no water
Over-head cause little water. Replace suitable pump
Head over-loss Replace suitable pump
3-phase motor operates in reverse rotation. Exchange either 2 prongs of 3 prongs
Outlet blocked Straight the hose, let it flow smoothly
Impeller worn out Replace impeller
Filter clogged Clear the filter
Symptom Possible Cause(s) Corrective Action
Vibration hugely Impeller worn out Replace impeller
Reverse rotation Exchange either 2 prongs of 3 prongs
Defective bearing Replace bearing
Too much air inhaled in the pump Check the installation condition of pump
Symptom Possible Cause(s) Corrective Action
Electric leakage when
contacting the pump
Bad isolation and electric leakage. Stop use and maintain