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5. Troubleshooting
Before taking any troubleshooting action, disconnect the pump from
the power supply. If there is any damage to the power cable or
pump, any necessary repairs or replacements must be performed by
the manufacturer or his authorized customer support service, or by
an equally -qualified party, in order to prevent all risks. When the
solutions doesn't solve the problem, please contact your dealer.
Fault
Pump doesn't start
or starts but stops
immediately
Operates but stops after
a while
Pump doesn't pump
inadequate volume
kinpumps.com
Possible Causes
1)
Power failure
2)
Large discrepancy between power
source and voltage
3)
Significant drop in voltage
4)
Motor phase malfunction
5)
Electric circuit connection fault
6)
Fault connection of control circuit
7)
Fuse is blown
8)
Wrong magnetic switch
9)
Water is not high enough to activate
float switch
10)
Float switch is not working
11)
Short circuit breaker is functioning
12)
Foreign matter clogging the pump
13)
Motor burned out
14)
Motor bearing broken
1)
Prolonged dry operation has
activated motor protector and
caused pump to stop
2)
High liquid temperature has
activated moto protector and
caused pump to stop
3)
Reverse rotation
1) Reverse rotation
2) Significant drop in voltage
3) Operating a 60Hz pump with 50Hz
4) Discharge head is high
5) Large piping loss
6) Low operating water lever causes air
suction
7) Leaking from discharge piping
8) Clogging of discharge piping
9) Foreign matter in suction inlet
10) Foreign matter clogging the pump
11) Worn impeller
AS-400
Possible solutions
1-3. Contact electric power company
and devise counter measures
4.
Inspect electric circuit
5.
Correct wiring
6.
Inspect connections and
magnetic coil
7.
Check circuit then replace fuse
8.
Replace with correct one
9.
Raise water level
10. Repair or replace float switch
11. Repair location of short circuit
12. Remove foreign matter
13. Repair or replace
14. Repair or replace
1.
Wait until pump is cooled down
and raise water level or water
supply to make sure pump is
always submersed.
2.
Wait until pump is cooled down
and lower liquid temperature
3.
The proper direction of rotation
is clockwise
1.
The proper direction of rotation
is clockwise
2.
Contact electric power company
3.
Check nameplate
4.
Recalculate and adjust
5.
Recalculate and adjust
6.
Raise water level or lower pump
7.
Inspect, repair
8.
Remove foreign matter
9.
Remove foreign matter
10. Remove foreign matter
11. Replace impeller
GB
8
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