TROUBLESHOOTING 1/3
CAUTION - Before installing this product, read and follow all warning notices and
instructions on page 4 - 6.
!
ALERTS AND WARNINGS
The IntelliFlo® VSD2 Variable Speed Pump displays all alarms and warnings on the control
panel display. When an alarm or warning condition exists, the corresponding light will be lit
on the display.
In the event of an alarm: The alarm light “ “ will illuminate and all control panel buttons will
be disabled until the alarm is cleared. Pressing the Reset button will clear the alarm once the
fault condition has been resolved.
In the event of a warning: The warning light “ “ will illuminate, but the pump will continue
to run. The speed limit that is causing the warning must be adjusted in order to correct the
warning.
Note: The pump will not start if the impeller is rotating.
POWER OUT/OFF
The incoming supply voltage is less than required. The drive faults to protect itself from over
current. The drive contains capacitors that keep it powered up long enough to save the current
run parameters. If power is restored during this process, approximately 20 seconds, the drive
will not restart until completed.
PRIMING FAILURE
If the pump is not defined as primed within the “Max Priming Time” it will stop and generate
a “Priming Alarm” for 10 minutes, then attempt to prime again. The “Max Priming Time” is
set by the user on the priming menu. If the pump cannot prime within five attempts it will
generate a permanent alarm that must be manually reset.
OVERHEAT
If the drive temperature gets above 54.4° C (130° F) the pump will slowly reduce speed until
the over temperature condition clears.
THERMAL MODE
When active, the motor will run at the preset RPM until the drive internal temperature increases
above the minimum. The pump’s internal thermal protection is disabled when connected to an
automation system. Thermal protection is provided by selecting YES at the ON WITH FREEZE
portion of the circuit function menu in the IntelliTouch® Control System. To re-enable the
internal thermal protection, the power to the drive must be cycled off then back on. Important:
See explanation of Thermal Mode on page 29.
OVER CURRENT
Indicated that the drive is overloaded or the motor has an electrical problem. The drive will
restart 20 seconds after the over current condition clears.
OVER VOLTAGE
Indicates excessive supply voltage or an external water source is causing the pump and motor
to rotate thereby generating an excessive voltage on the drives internal DC buss. The drive will
restart 20 seconds after the over voltage condition clears.
INTERNAL ERROR
Indicates that the self-monitoring motor control software has encountered an error. Clear the
alarm and restart the pump. If this alarm persists, contact Pentair Technical Service at (+32)
14.295.911.
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