Acquaer Ltd.
H-
4900, Fehérgyarmat, Szatmári út 11.
Troubleshooting
Check the pump after power cut-off.
Symptom
Cause
Corrective Action
The motor cannot be
started
Single-phase power
supply (three-phase
electric motor):
a.
poor connection of
the power switch;
b.
fuse is burned out;
c.
loose power lead;
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 discharged
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.
