18
Table 1 - Troubleshooting Guide (continued)
Symptom Possible Cause Action
9. Pendant LED indicator
light flashes randomly at
start-up. Pump does not
operate when pendant
buttons are pressed.
a. Service center diagnostic mode
activated.
The service center diagnostic mode can be
accidentally activated if the pendant jog button is pressed
down while the pump AC power cord is being plugged into
the electrical outlet.
If the pendant LED indicator light blinks randomly yellow or
red/yellow, it indicates that the pump may be in diagnostic
mode.
To exit diagnostic mode, disconnect and reconnect AC
electric power. Be sure no pendant buttons are being
pressed as the pump AC power cord is being plugged into
the electrical outlet.
The pendant LED indicator light should appear solid
green approximately 3 seconds after power has been
reconnected. This indicates that the pump is in normal
operational mode.
b. Pump electrical and/or
mechanical problems.
Contact Enerpac Authorized Service Center.
10. Pump retract timer is
extended (20 seconds)
and the relief pressure
is above 2,000 psi [138
bar].
Faulty or damaged pressure
transducer.
Contact Enerpac Authorized Service Center.
11. Auto-cycle function
is disabled and/or
pendant will not accept
a pressure setting.
a. Relief valve pressure setting is
below 1000 PSI [70 bar].
Adjust relief valve pressure to 1000 psi [70 bar] or above.
Auto-cycle operating pressure range is 1000 to 10,000 psi
[70 to 700 bar].
b. Faulty or damaged pressure
transducer.
Contact Enerpac Authorized Service Center.
12. Pendant LED indicator
light shows mechanical
or electrical failure fault
(see Section 15.0) when
battery is connected
to pump then changes
to solid green after 10
seconds.
Faulty or damaged pressure
transducer.
Contact Enerpac Authorized Service Center.
To Next Page
Loading...
Need help?
General
