8
ERROR CODE FAULT
ACTION
ERROR 1
HIGH
VOLTAGE
FAULT
• Check power supply input value
• Check high voltage protection value as parameter P1
ERROR 2
LOW
VOLTAGE
FAULT
• Check power supply input value
• Check low voltage protection value as parameter P2
• Check power supply cable and connector connections
ERROR 3
PHASE
SEQUENCE
FAULT
• Error 3 is occured on 7 segment display in case phase sequence fault
and system does not work. Change the sequence of phases on power
supply input.
ERROR 4
HIGH
CURRENT
FAULT
• Before performing any measurement, make sure there is no mechanical
congestion in pump
• Measure the current and compare with motor nominal current value
printed on motor label.
• Check high current value set in the parameter P3 and compare with
motor nominal current value printed on motor label
• Check motor cable and connector connections.
ERROR 5
LOW
CURRENT
FAULT
• Before performing any measurement, make sure there is no mechanical
congestion in pump
• Make sure that pump suction valve is not closed.
• Make sure the pump is deaerate before operation.
• Check low current protection value parameter P4
• Measure the current value when suction valve is closed and motor in
operation. Be careful the input voltage is between 380-400 V during this
measurement.
• The set parameter of low current protection must be %10 higher than
measured value
ERROR 6
NO WATER
• Make sure there is enough water in storage tank.
• Make sure floater level is adjusted properly
• Check floater cable and contactor connections
ERROR 7
BLOCKAGE
FAULT
• System is blocked when low current protection algorithm completed and
there is still low current alarm.
• Make sure that pump suction valve is not closed
• Make sure the pump is deaerate before operation
• Check floater in water storage tank
6. Troubleshooting
