9. Trouble Shooting
Make sure electricity supply has been switched off before trouble shooting
10. Wiring diagram
1. Motor does not start
2. Motor cut out during
operation
3. Pump gives unstable
discharge.
4. Pump runs but no water
is discharges.
1. No electricity supply.
2. Fuses blown or breaker tripped.
3. Overheating relay tripped.
4. Defective magnetic contacter.
5. Control circuit malfunction.
1. Fuses blown or breakers tripped.
2. Overheating relay tripped.
3. Control circuit malfunction.
4. Pump locked by foreign objects
1. Pump impeller blocked by foreign objects.
2. Insufficient liquid level.
( See Sec.4.2)
1. Suction filter blocked by foreign objects.
2. Low liquid level. (See Sec.4.2.)
3. Incorrect rotating direction.
Fault Causes
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