K-Series
I/O Manual
Prepared by.
Rev. No.
0
Date.
11-Jan-11
Page.
25 / 25
8.
TROUBLE SHOOTING
SYMPTOM
CAUSE
REMEDY
Pump does not
start or stops
immediately
after starting.
1)
Power Failure
2)
Incorrect voltage.
3)
Significant voltage drop
4)
Motor phase malfunction
5)
Electric circuit connection
fault
6)
Faulty
control
circuit
connection
7)
Blown fuse
8)
Faulty magnetic switch
9)
Short circuit & breaker is
functioning
10)
Foreign
matter
clogging
pump
11)
Motor burnt out
12)
Damaged motor bearings
1) Contact electric power company
2) “
3) “
4)
Inspect motor & connections
5)
Check electric circuit
6)
Correct wiring
7)
Replace with correct fuse type
8)
Replace with correct type of
magnetic switch
9)
Locate short circuit and repair
10)
Remove foreign matter
11)
Rewind Motor
12)
Replace bearings
Pump starts but
stops after a
short period of
operation
1)
Prolonged dry operation
has
activated
motor
protection.
2)
High liquid temperature
has activated motor protector.
1)
Adjust (raise) the pump stop water
level so that the motor remains
partially covered during operation
2)
Lower liquid temperature
Does not pump
inadequate
volume
1)
Reverse Rotation
2)
Significant drop in voltage
3)
Operation 60Hz pump on
50Hz
4)
Discharge head is high
5)
Large piping loss
6)
Low operating water level
causes air suction
7)
Leak from discharge piping
8)
Clogged discharge piping
9)
Foreign matter in suction
inlet
10)
Foreign matter clogging
pump
11)
Worn out impeller
1)
Correct Rotation (See Operation3)
2)
Contact electric power company
and devise counter measures.
3)
Check Name Plate
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)
Disassemble and remove foreign
matter
11)
Replace impeller
