Read this operation manual thoroughly before requesting repair. Contact the dealer from whom the pump was
purchased. Servicing and troubleshooting must be handled by qualified persons with proper tools and equipment.
Common faults, root causes for these, and suggested actions are provided in TABLE 2 below:
Fault Possible Causes Suggested Actions
Pump does not
run
No power supply to the motor Check for availability of power
Burnt motor coil Rewind the motor
Low-voltage operation Operate in the recommended voltage range
The motor starter overload has
tripped
Reset the motor starter overload. If it trips again,
check the voltage
Pump is jammed Dismantle the pump and clear the jammed parts
Fuse has blown Replace fuse
Loose connections Tighten the electrical connections
Pump has been kept idle for a
long time
Ensure free rotation of shaft by running the pump
for a few minutes at least every alternate day
Less discharge
from pump
Low-voltage operation
Check the supply voltage, Operate in the
recommended voltage range
Wrong direction of rotation
Send the pump to authorised service centre
Increased delivery head
Ensure delivery head within specified value
Smaller pipe size used when
compared to nameplate
recommendations
Replace with suggested pipe size
11. Basic troubleshooting
Warning
To prevent serious accidents, disconnect the power supply before inspecting
the pump.
OMOW002A 24 2020.01
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