Apr 8, 2020
TPRK 1T
TPRK 3T
TPRK 5T
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Cause 1: Check if electrical power source, fuse or circuit breaker failed.
Cause 2: Check if pump is locked up by sand, rust or any foreign objects.
Cause 3: Check if the motor is defective due to overload or other causes.
Cause 1: If it is a three phase motor, please check if the direction of rotation is correct.
Cause 2: Check if the inlet source is sufficient, the suction lift is not too great and the temperature is within the normal range.
Cause 3: Check if there is any leakage in suction pipe,check valve works normal and mechanical seal is not defective etc.
Cause 1: Motor overheat due to excessive suction lift or too high liquid temperature.
Cause 2: Control circuit has cut out (pressure switch or level controller).
Cause 1: No electricity supply.
Cause 2: Fuses are blown.
Cause 3: Motor overheating relay tripped.
Cause 4: Defective magnetic contactors.
Cause 5: Control circuit malfunction.
Cause 1: Fuses blown or breakers tripped.
Cause 2: Overheating relay tripped.
Cause 3: Control circuit malfunction.
Cause 4: Pump locked up by foreign objects.
Cause: Pump impeller blocked by impurities.
Cause 1: Suction filter blocked by impurities.
Cause 2: Incorrect rotating direction.
Cause 1: Supply failure. Remedy:Connect the electricity supply.
Cause 2: Fuses are blown. Remedy:Replace fuses.
Cause 3: Motor starter overload has tripped out. Remedy:Reactivate the motor protection.
Cause 4: Thermal protection has tripped out. Remedy:Reactivate the thermal protection.
Cause 5: Main contacts in motor starter are not making contact or the coil is faulty. Remedy: Replace contacts or magnetic coil.
Cause 6: Control circuit is defective. Remedy:Repair the control circuit.
Cause 7: Motor is defective. Remedy:Replace the motor.
Cause 1: One fuse/automatic circuit breaker is blown. Remedy:Cut in the fuse.
Cause 2: Contacts in motor starter overload are faulty. Remedy:Replace motor starter contacts.
Cause 3: Cable connection is loose or faulty. Remedy:Fasten or replace the cable connection.
Cause 4: Motor winding is defective. Remedy:Replace the motor.
Cause 5: Pump mechanically blocked. Remedy:Remove the mechanical blocking of the pump.
Cause 6: Overload setting is too low. Remedy:Set the motor starter correctly.
Cause 1: Overload setting is too low. Remedy:Set the motor starter correctly.
Cause 2: Low voltage at peak times. Remedy:Check the electricity supply.
Cause 1: Supply failure. Remedy:Connect the electricity supply.
Cause 2: Fuses are blown. Remedy:Replace fuses.
Cause 3: Thermal protection has tripped out. Remedy:Reactivate the thermal protection.
Cause 4: Main contacts in motor starter are not making contact or the coil is faulty. Remedy: Replace contacts or magnetic coil.
Cause 1: Pump strainer partly blocked by impurities Remedy:Clean the strainer.
Cause 2: Liquid level in tank too low. Remedy:Increase the liquid level.
Cause 3: Pump draws in air. Remedy:Check the suction conditions.
Cause:Shaft seal is defective. Remedy:Replace the shaft seal.
Cause 1: Cavitation occurs in the pump. Remedy:Check the suction conditions.
Cause 2: Pump does not rotate freely (frictional resistance) because of incorrect pump shaft position. Remedy:Adjust the pump shaft.
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