TPCK Series

Q1.Motor does not run when started.

Cause Remedy
1. Supply failure. Remedy:Connect the electricity supply.  
2. Fuses are blown. Remedy:Replace fuses.  
3. Motor starter overload has tripped out. Remedy:Reactivate the motor protection.  
4. Thermal protection has tripped out. Remedy:Reactivate the thermal protection.  
5. Control circuit malfunction. Replace contacts or magnetic coil.
6. Control circuit is defective. Remedy:Repair the control circuit.  
7. Motor is defective. Remedy:Replace the motor.  

Q2.Motor starter overload trips out immediately when supply is switched on.

Cause Remedy
One fuse/automatic circuit breaker is blown. Cut in the fuse.
Contacts in motor starter overload are faulty. Replace motor starter contacts.
Cable connection is loose or faulty. Fasten or replace the cable connection.
Motor winding is defective. Replace the motor.
Pump mechanically blocked. Remove the mechanical blocking of the pump.
Overload setting is too low. Set the motor starter correctly.

Remark: before operation, turn off power switch first.

Q3.Motor starter overload trips out occasionally.

Cause Remedy
Overload setting is too low. Set the motor starter correctly.
Low voltage at peak times. Check the electricity supply.

Remark: before operation, turn off power switch first.

Q4.Motor starter has not tripped out but the pump does not run.

Cause Remedy
Supply failure. Connect the electricity supply.
Fuses are blown. Replace fuses.
Thermal protection has tripped out. Reactivate the thermal protection.
Main contacts in motor starter are not making contact or the coil is faulty. Replace contacts or magnetic coil.

Remark: before operation, turn off power switch first.

Q5.Pump runs but gives no liquid or pump capacity is not constant.

Cause Remedy
Pump strainer partly blocked by impurities. Clean the strainer.
Liquid level in tank too low. Increase the liquid level.
Pump draws in air. Check the suction conditions.

Remark: before operation, turn off power switch first.

Q6.Leakage in shaft seal.

Cause Remedy
Shaft seal is defective. Replace the shaft seal.

Remark: before operation, turn off power switch first.

Q7.Noise.

Cause Remedy
Cavitation occurs in the pump. Check the suction conditions.
Pump does not rotate freely (frictional resistance) because of incorrect pump shaft position. Adjust the pump shaft.

Remark: before operation, turn off power switch first.

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