Troubleshooting Guide

Instruction Manual
︱
8
Troubleshooting
Problems Possible Causes Solutions
Pump fails to start.
No electricity
Contact the electric power company
or an electrical repair shop
Open circuit or poor connection of
the cable.
check if there is an open circuit in
the wiring
Impeller is clogged.
Inspect the pump and remove the
block.
Pump starts but
stops immediately,
causing the motor
protector to activate.
Impeller is clogged.
Inspect the pump and remove the
block.
Voltage drop
Correct the voltage rating, or use
a cable that meets the standard
length.
A 50Hz model is operated at
60Hz.
Check the nameplate and replace
the pump or impeller.
The strainer is clogged, and the
pump was operated dry for long
hours.
Remove the block.
Motor abnormal
Repair the motor or replace with a
new motor.
The pump is picking up too much
sediment.
Place the pump on a concrete
surface to prevent the pump from
picking up sediment.
The pump’s head and
pumping volume is
lower.
The impeller is worn.
Replace a new impeller.
The hose may be clogged.
Reduce the number of bends in
the hose, or in an area with a large
amount of debris, use the pump in a
basket.
The strainer is clogged or buried.
Reduce the number of bends in
the hose, or in an area with a large
amount of debris, use the pump in a
basket.
The motor rotates in reverse.
Exchange the power supply terminal
connection.
The pump makes
noise or vibration.
The bearing of the motor may
be damaged or the impeller is
damaged.
Repair or replace the part.