Q & A
Category
Category
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.