3000 W. 16 Ave. Miami, FL 33012
Tel: (954) 4749090 | Fax: (954) 8890413
[email protected] | www.pearlwatersystems.com
PROBLEM
POSSIBLE CAUSE
REMEDY
MOTOR DOES NOT START OR
RUN
Single-phase power supply (three-phase electric
motor):
a. poor connection of the power switch;
b. fuse is burned out;
c. loose power lead;
d. phase failure of the cable
a. repair switch contact or replace the switch;
b. replace the safety fuse;
c. check and tighten the power connector;
d. repair or replace cables
Capacitor is burned out
Replace with a same type capacitor (send to the
maintenance point for repair)
The rotating shaft and bearing are jammed.
Replace the bearing (send to the maintenance point for
repair)
Impeller is jammed.
Turn rotating shaft of the fan blade terminal with screw
driver to let it rotate flexibly or demount the pump body to
clear sundries.
Stator winding is damaged
Replace winding coils (send to the maintenance point
for repair)
THE MOTOR IS IN OPERATION,
BUT NO WATER IS DIS-
CHARGED
Incorrect direction of pump rotation
Invert two-phase wirings of the motor (three-phase motor)
The pump is not fully filled with water
Re-fill the pump with water.
The impeller is damaged
Replace the impeller (send to the maintenance point for
repair)
Leakage of the suction pipe
Check sealing of various joints of the inlet pipelines
Water level is too low
Adjust installation height of the pump
Freeze caused by accumulated water in the pipeline
or the chamber
Start up the pump after ice is melted
INSUFFICIENT PRESSURE
Incorrect pump type
Select suitable pump
The inlet pipeline is too long or with too many
bends, pipe diameter is not selected as required.
Apply the pipe with the stipulated diameter, and make the
inlet pipe short.
Inlet pipeline, filter screen or pump chamber is
blocked by foreign materials
Clean pipeline, foot valve or pump chamber, clear sundries
MOTOR WORKS INTERMIT-
TENTLY OR THE STATOR
WINDING IS BURNED OUT
The impeller is jammed or overload operation for
a long time
Clear sundries in the pump chamber; operate the pump
under the rated flow as much as possible.
Incorrect grounding, broken cable or the electric
pump is hit by lightning.
Seek for the reason, and replace winding coils.
LEAKAGE OF MECHANICAL
SEAL
The mechanical seal is worn and torn by
impurities.
Clear or replace the mechanical seal
ABNORMAL NOISE FROM
THE PUMP
Noise from the bearing
Replace with the same type bearing
Impeller is jammed.
Remove sundries
Excessive flow
Adjust to the range displayed on the nameplate before use.
10.TROUBLESHOOTING
