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Home > Technical FAQ > Submersible Guide

Submersible Guide
Untitled Document
SYMPTOMS

PROBABLE CAUSE

CORRECTIVE ACTION

1
No buzzing and failure in running after switch on the power

Buzzing
 

 NO electricity Arrange power supply
Break in the cable Replace with new one
Defective connection Complete the connection
Disconnection in motor coil Rewinding the coil
Auto-cut in action Trace the cause and take appropriate action
Auto-cut failure Replace with new one
Fuse broken Replace with new one
2
Buzzing but failure in running

Operation stops

Connection is
defective/incomplete		 Complete the connection
Defective cable Replace the cable
Defective motor
 		 Rewinding the coil
Bearing are worn/defective Replace with new ones
Trouble in apacitor
(Single Phase)		 Replace with new one
Trouble in centrifugal Replace with new one
switch (Single Phase) Replace with new one
Trouble in auto-cut Replace with new one
Locking of impeller
 		 Overhaul and clean the impeller
Voltage drop adjust the power supply
Insufficiency of generator capacity Replace the generator with a larger one
3 Operation stops soon after starting

Insufficient pumping liquid

Voltage drop
 		 Adjust the power supply and voltage
Insufficiency of generator capacity Replace the generator with a larger one
Voltage unbalance (three Phase) Adjust the power supply
Trouble in auto-cut Replace with new one
Trouble in motor coil Replace or rewinding the coil
High liquid viscosity Consult with manufacturer
High liquid specific gravity Consult with manufacturer
Too high liquid temperature Consult with manufacturer
Reverse rotation (three Phase) Interchange two of the three phases
4 Insufficient pumping liquid or failure in pumping

Heavy Vibration

Head is too high
 		 Replace pump with one of appropriate size
Reverse rotation (Three Phase) Interchange two of the three phases
Hose pipe clogging Check and eliminate the particles
Abrasion of impeller Replace with new on
Strainer clogging Clean strainer
5 Heavy Vibration

Electric shock

 One-sided wearing of impeller
 		 Replace with new one
Reverse rotation Interchange two of the three phases
Trouble in bearing Replace with new one
Sucking air while running Check hose pipe
6 Electric shock

No buzzing

 Insulation drop or electrical leakage Stop running and overhaul for repairing
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