Step 3: Install New Power Canister; Step 4: Complete Power Canister Replacement - Lenovo ThinkSystem DE Series Manual

3. Turn off the power switch on the power canister that you need to remove.
4. Open the power cord retainer of the power canister that you need to remove, and then unplug
the power cord from the power canister.
5. Press the orange latch on the power canister cam handle, and then open the cam handle to
fully release the power canister from the mid plane.
6. Use the cam handle to slide the power canister out of the shelf.

When removing a power canister, always use two hands to support its
weight.

4.3.5. Step 3: Install new power canister

Install a new power canister to replace the failed one.
Steps
1. Make sure the on/off switch of the new power canister is in the Off position.
2. Using both hands, support and align the edges of the power canister with the opening in the
system chassis, and then gently push the power canister into the chassis using the cam handle
until it locks into place.

Do not use excessive force when sliding the power canister into the system;
you can damage the connector.
3. Close the cam handle so that the latch clicks into the locked position and the power canister is
fully seated.
4. Reconnect the power cord to the power canister, and secure the power cord to the power
canister using the power cord retainer.
5. Turn on the power to the new power canister.

4.3.6. Step 4: Complete power canister replacement

Confirm that the new power canister is working correctly, gather support data, and resume normal
operations.
Steps
1. On the new power canister, check that the green Power LED is on and the amber Attention LED
is OFF.
2. From the Recovery Guru in ThinkSystem System Manager, select Recheck to ensure the
problem has been resolved.
3. If a failed power canister is still being reported, repeat the steps in
canister and in Step 3: Install new power canister. If the problem continues to persist, contact
Step 2: Remove failed power
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