PaloAlto Networks PA-5000 Series, Hardware Reference Manual, Page: 21 / 34

Palo Alto Networks Maintaining the Hardware • 21
Replacing a Power Supply
Figure 10. AC Power Supply Replacement
Replacing a DC Power Supply
Before servicing the hardware, read the information in “Cautions and Warnings” on page 15.
To replace the DC PWR1 or PWR2 power supply:
1. While the PA-5000 Series is running, loosen the screws that secure the power wires and remove the
wires from the power supply that you need to replace, as shown in Figure 11.
Figure 11. DC Power Supply - Wire Removal and Attachment
Note: If enabled, an audible alert will be sound until two power supplies are
installed and operational. The audible alert is disabled by default and can be
enabled by running
set system setting power-supply audible-
alarm enable yes
.
WARNING: You must shut off the electric current to the DC feed wires before
connecting or disconnecting the wires from the DC power supply.