Removing and replacing a fan flap

Use this procedure to replace a damaged fan flap unit in a node canister with a new one received from stock.

Before you begin

Attention:
  • Do not remove a node canister from its enclosure before replacement parts are available.
  • If a node canister is removed from a functioning enclosure for longer than 16 minutes the remaining node canister can log overtemperature events in the system log. If the temperature continues to rise, a critical temperature event is logged. If the temperature rises further, components might shut down. To extend servicing time, reduce ambient temperature or reduce the I/O workload to the node.
  • Electrostatic discharge precaution symbol When you replace this part, you must follow recommended procedures for handling electrostatic discharge (ESD)-sensitive devices.
  • No tools are required to complete this task. Do not remove or loosen any screws.

About this task

Behind each fan module is a replaceable fan flap unit that controls airflow if a fan fails.

Procedure

Removing the fan flap

  1. Follow Removing and replacing a fan module to safely remove the fan module that sits in front of the broken fan flap.
  2. Refer to Figure 1 and Figure 2. Press the top clip located inside the top of the fan slot to release the fan flap from the outside of the metal frame.
    Figure 1. Fan flap
    Fan flap with flat side forward, showing top clip and bottom clips
    •  1  Top clip
    •  2  Flat side of flap
    •  3  Bottom clips
    Figure 2. Pressing a fan flap out of the fan module slot
    Fan flap in rear of fan module slot in node canister
  3. Lift the fan flap out of the canister.

Replacing the fan flap

  1. Hold the replacement fan flap with the flat side and the top clip facing the outside of the fan slot.
  2. Place the fan flap into the metal frame at a slight angle to engage the two lower clips in the holes in the frame.
  3. Rotate the top edge of the fan flap into the top of the metal frame until it clicks softly into place, as shown inFigure 3.
    Figure 3. Replacing a fan flap
    Replacing a fan flap until it clicks into place
  4. Follow Removing and replacing a fan module to safely reinstall the fan module that was removed and to reinstall the node canister into the enclosure.