PaloAlto Networks PA-5000 Series, Hardware Reference Manual

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Replacing a Power Supply
20 • Maintaining the Hardware Palo Alto Networks
Interpreting the Power Supply LED
The PA-5000 Series firewall has two power supplies and each power supply has an LED located above
the power cord to indicate status. Table 8 describes the LEDs located on the back of each power supply.
Replacing a Power Supply
The PA-5000 Series firewall has two hot-swappable AC or DC power supplies. Both power supplies
should be connected during normal operations. If the system detects a loss of power, either due to loss
of power connection, failure of the power supply, or incorrect input voltage being supplied, the power
supply LED located above the power plug will go off and the front panel PWR LED and ALARM LED
turn red. If enabled, an audible alert will be sound until both power supplies are operational. The audible
alert is disabled by default and can be enabled by running
set system setting power-
supply audible-alarm enable yes
.
Replacing an AC Power Supply
Before servicing the hardware, read the information in “Cautions and Warnings” on page 15.
To replace the AC PWR1 or PWR2 power supply:
1. While the PA-5000 Series is running, unplug the power cord from the power supply that you need
to replace.
2. Push the lever to the right and use the handle to slide the power supply out of the device, as shown
in Figure 10.
3. Slide a replacement power supply into the device.
4. Connect the power cable to the power supply and to an AC power source.
Table 8. Power Supply LED
LED State Description
Power Supply Green The power supply is operating normally.
Off The system detected a loss of power, either due to loss of power
connection, failure of the power supply, or incorrect input voltage being
supplied. The power supply LED located above the power plug will go off
and the front panel PWR LED and ALARM LED turn red.