Replacing the power supplies

About replacing a power supply

Your appliance has two power supplies in two separate power supply bays at the back.

Note
Because you have two power supplies that are hot swappable, you do not have to shut down your appliance when you are replacing one of them.

Replacing a power supply consists of the following procedures:

Power supply compatibility

Be aware of the following caution regarding the compatibility between the two power supplies in your appliance.

Caution
When replacing a power supply, be sure not to mix power supplies from different systems. The two power supplies in your appliance must have the same part number.

Removing a power supply

To remove a power supply, complete the following steps, using the figure for reference.

WARNING
To avoid an electric shock hazard, you must disconnect the power supply before removing it from your appliance.

Step	Action
1	From the console or LCD screen, identify the failed power supply. Note The power supply identifiers, PS1 and PS2, are silk-screened onto your appliance chassis.
2	Put on the antistatic wrist strap and grounding leash.
3	Turn off the switch on the power supply that you are replacing.
4	Lift up the clip lock and unplug the power cord from your appliance power supply.
5	Loosen the power supply thumbscrews by turning each thumbscrew counterclockwise.
6	Use the cam handle to slide the power supply out of the power supply bay. WARNING The power supply is heavy. Support the bottom of the unit while removing the unit from its bay.
7	Set the power supply aside. Note If your appliance is running Data ONTAP, it reports a failure for the removed power supply.

Installing a power supply

To install a power supply, complete the following steps.

Step	Action
1	Verify that the switch on the power supply is turned off.
2	Slowly and firmly push the power supply into the bay until the power supply is firmly seated in the bay.
3	Secure the power supply by turning the thumbscrew clockwise until it stops.
4	Plug the power cord into the power cord receptacle on the power supply and secure it with the adjustable clip lock, shown below.
5	Turn on the power to the new power supply.