Option 1: Replace an AC PSU
To replace an AC PSU, complete the following steps.
1. If you are not already grounded, properly ground yourself.
2. Identify the PSU you want to replace, based on console error messages or through the red Fault
LED on the PSU.
3. Disconnect the PSU:
a. Open the power cable retainer, and then unplug the power cable from the PSU.
b. Unplug the power cable from the power source.
4. Remove the PSU by rotating the handle up, press the locking tab, and then pull PSU out of the
controller module.
The PSU is short. Always use two hands to support it when removing it from the
controller module so that it does not suddenly swing free from the controller
module and injure you.
5. Install the replacement PSU in the controller module:
a. Using both hands, support and align the edges of the replacement PSU with the opening in
the controller module.
b. Gently push the PSU into the controller module until the locking tab clicks into place.
The power supplies will only properly engage with the internal connector and lock in place
Blue PSU locking tab
Power supply
303
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