Replace a PA-7080 AC Power Supply

Put the provided ESD wrist strap on your wrist ensuring that the metal contact is touching your skin. Then attach (snap) one end of the ground cable to the wrist strap and remove the alligator clip from the banana clip on the other end of the ESD grounding cable. Plug the banana clip end into one of the ESD ports located on the front of the chassis before handling ESD sensitive hardware. For details on the ESD port location, see PA-7080 Front Panel (AC).
Locate the failed power supply by viewing the system logs or by viewing the LED on the front of the power supply. A red LED indicates a failed power supply. For details on the power supply LEDs, see Interpret the PA-7000 Series Firewall Power Supply LEDs.
Power off the failed power supply; the switch is on the back of the chassis. Then unplug and remove the power cord (leaving the cord in place can cause arcing inside the chassis).
The front power supplies correspond directly to the power connections on the back of the chassis from front to back. There are two rows of power supplies on the front of the chassis and two rows of PEMs on the back. For example, while facing the front of a PA-7080 firewall, the two far left power supplies are 1A and 1B, which connect to the power connections on the far right when facing the back of the chassis and numbered PEM A 1 and PEM B 1.
Remove the failed power supply by pushing the small metal clip located on the bottom left of the power supply ejector door (as shown in the following image) and then pulling the power supply door toward you from the left side to eject the power supply from the chassis. Then pull the power supply toward you and remove it.

Remove the replacement power supply from the packaging and open the front ejector door until it is fully open. Remember to push the metal clip located on the bottom left to release the ejector door.
Slide the new power supply into the empty power supply slot until it is almost fully seated. Ensure that the notch near the hinged part of the ejector door inserts into the chassis so that when you close the door, it properly seats the power supply.
Plug the power cable into the corresponding AC power module on the back of the chassis and turn on the power switch. The new power supply will turn on and the LED will turn green.