Troubleshooting
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10 Troubleshooting
Troubleshooting VASCO-equipped booster sets. The information in this section is common to all VASCO-equipped Dutypoint
booster sets. For more detailed troubleshooting information that is specific to the type and model of pump controller used,
please refer to the manufacturer’s literature in the Appendix.
WHEN A FAULT FIRST OCCURS:
— Turn off the main power to the pump set and leave off for 1 minute
— Switching power back on and re-energising the system may be sufficient to clear the fault
WARNING: IF PUMP COSPHI IS LOWER THAT THE DRY-RUNNING COSPHI FOR AS LEAST 2 SECONDS, VASCO WILL STOP
THE PUMP. VASCO WILL TRY TO RUN THE PUMP AT 10, 20, 40, 80 AND 160 MINUTES, THEN THE PUMP WILL STOP. IF DRY
RUNNING PROTECTION OCCURS, VASCO WILL ATTEMPT TO START THE PUMP AUTOMATICALLY
— Cut the power supply before performing any maintenance
— VASCO will stop the pump if the input motor current is higher than the set motor current for an extended time. By pressing
the START button it is possible to run the pump again.
— VASCO will stop the pump if the input voltage is higher than the set voltage for an extended time. By pressing the START
button it is possible to run the pump again. VASCO will stop the pump if the input voltage is lower than the set voltage
for an extended time. By pressing the START button it is possible to run the pump again.
Table 10: Common Error Messages
Message
Possible Cause(s)
Solutions
ACTIVE DIG.
IN. 1
Digital input 1 contact is
opened - system indicates
‘External On/Off’
1)
Verify that an external signal (e.g. BMS) is set to deactivate the pump set
2)
The error should reset automatically when Digital Input 1 contact is closed
ACTIVE DIG.
IN. 3
Digital input 3 contact is
opened - system indicates
‘Low Water Level’
1)
Check incoming mains pressure is as expected
2)
Check water level in tank.
3)
The error should reset automatically when Digital Input 3 contact is closed
NO WATER-
(DRY RUN
COSPHI)
Minimum pressure
requirement not reached
within set period
1)
Turn off main electrical isolator
2)
Close discharge isolation valve
3)
Vent pumps
4)
Turn on main electrical isolator
5)
Check unit runs up to set pressure and pump motors shut down
6)
Open discharge valve slowly ensuring set pressure is maintained
Air lock in pump
1)
Press the red STOP button on the inverter drive(s) to stop the unit.
2)
Disconnect the pump(s) by loosening the union directly underneath the lid,
above the pump discharge pipeline.
3)
Lean/tilt the pump(s) over as far as possible to enable air to escape.
4)
Reconnect the pump union(s).
5)
Press the green START buttons to resume normal operation.
6)
Verify normal operation.
No water in break tank
1)
Check incoming mains pressure is as expected;
2)
Check the water level in the tank.
