Troubleshooting

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 ...

Corrective Action

The pump hums, but it does work.

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

Corrective Action

Operation stops suddenly

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

Corrective Action

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...

Corrective Action

Vibration hugely

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

Corrective Action

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...

Corrective Action

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