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15.0 PUMP FAULT CODES (user-level)
Pump fault codes are displayed by the pendant LED indicator light.
• Refer to Table 2 for pump fault code information.
• See Figure 4 for location of pendant LED indicator light.
Table 2 - Pump Fault Codes (user-level)
Fault Pendant LED Indicator Light Cause Action
BUTTON FAULT
1 red blink followed by a
1 second pause. Sequence
repeats until problem is
corrected.
Pendant buttons pressed while
AC power cord is connected to
outlet.
• Disconnect power.
• Ensure that pendant buttons are
not being pressed.
• Reconnect power and try to
start pump again.
• If problem persists, contact
Enerpac Authorized Service
Center.
Damage to pendant and/or
cable wiring.
Check pendant and pendant cable
for obvious signs of damage or
wear.
Contact Enerpac Authorized
Service Center if repairs are
needed.
TEMPERATURE FAULT
2 fast red/yellow blinks
followed by a 1 second
pause. Sequence repeats
until pump cools to an
acceptable temperature.
Motor, electrical or internal
ambient temperature too high.
Allow time for pump temperature
to decrease (as required).
VOLTAGE FAULT
3 yellow blinks followed by a
1 second pause. Sequence
repeats until problem is
corrected.
Voltage above or below
acceptable voltage range for
your pump model.
Check AC power supply for
correct voltage.
SERVICE REQUIRED FAULT
4 red blinks followed by a
1 second pause. Sequence
repeats until problem is
corrected.
Mechanical or electrical failure.
Additional diagnostic procedures
required to determine problem.
Contact Enerpac Authorized
Service Center.
Notes:
• The pendant LED indicator light will continue to repeat the fault code until the problem is corrected. A 1 second pause will
occur in between the repeated fault codes.
• Pendant haptic pulses (vibration) will occur simultaneously when the LED indicator light begins flashing a fault code. After the
LED indicator light has repeated the fault code 3 times, the haptic pulses will stop.
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