Aquasub engineering AQUA GROUP AQUATEX AV Series Panduan Pengoperasian - Halaman 11
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Halaman CetakIf you find any trouble during operation of the pump,
please follow the guidelines to overcome some of the
troubles given below.
Fault
a. Supply failure or no power supply.
b. Main contacts in motor starter are not
making contact or the motor coils are
defective
c. Pump or auxiliary circuits protection
fuses blown.
Pump does not run
d. Pump or piping system may be
when the motor
obstructed causing a jam.
starter is activated.
e. Motor may have failed.
f. Motor protector or thermal relay has
tripped out.
g. Tripping of anti-dry running protection.
a. Overload setting is too low.
b. The cable connection is loose or faulty.
c. One fuse is blown.
Starter overload
trips immediately
d. Pump is jammed by an obstruction
when the power is
e. Contacts in overload are faulty.
switched on.
f. The motor winding is defective.
g. Low voltage(Especially at peak time)
a. The voltage is not within the motor's
operating limits.
The pump starts
but, after a short
b. The control panel is situated in an
time, the thermal
excessively heated area or is exposed to
protector trips out
direct sunlight.
or the fuses blow.
c. A phase in the power supply is missing.
a. Worn out motor bearings causing motor
to overheat.
b. The pump's delivery rate is higher than
the specified rate on the pump nameplate.
The pump starts up
but, after a
c. There are obstructions inside the pump
period of time, the
or pumping system.
thermal protector
trips.
d. Less viscous liquids may cause the motor
to work too hard and overload the motor,
causing the motor to overheat.
TROUBLE SHOOTING
Probable cause
Possible Solution
Check connections or restart the power
supply.
Reconnect or replace contacts or magnetic
coil.
Replace fuses.
Clean the obstruction and restart pump.
Replace the motor.
Reset the motor or thermal protector.
Check the water level in the tank or the
water system pressure. If everything is in
order, check the protection device and its
connection cables.
Set the motor starter correctly.
Fasten or replace the cable connection.
Replace fuse and try starting again.
Check and clean obstruction from system.
Replace motor starter contacts.
Replace the motor.
Check the power supply.
Check the operating conditions of the
pump.
Protect the control panel from heat sources
and from the sun.
Check the power supply.
Replace motor bearings.
Partially close the isolating valve located
discharge side until the delivery rate
returns to within the specified limits.
Disassemble and clean the pump and
piping.
Check the actual power requirements
based on the characteristics of the liquid
being pumped, and replace the motor
accordingly.