Removing and Installing a Fan

Problem

The JA1500 appliance ships with two field-replaceable fans that are hot-removable and hot-insertable. You can remove and replace a fan without powering off the appliance or disrupting functions.

When a fan fails, the full cooling load switches to the remaining fan and the red Failure LED blinks on the JA1500 front panel and an alarm sounds. See Figure 16.

Figure 16: JA1500 Appliance Front Panel Status LEDs

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Caution: The JA1500 appliance should not run on one fan for an extended period of time. Failed fans should be replaced as soon as possible.

Solution

Before you begin removing a fan tray from a JA1500 appliance, ensure that you have taken the necessary precautions to prevent ESD damage.

To remove a failed fan and install a new one:

  1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  2. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  3. Press the latch to release the fan. See Figure 17.

    Figure 17: JA1500 Appliance Fan Removal

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  4. Pull the fan out of the chassis.
  5. Place the fan in the antistatic bag or on the antistatic mat placed on a flat, stable surface.
  6. Remove the new fan from the antistatic bag.
  7. Insert the new fan until the latch locks. See Figure 18.

    Figure 18: JA1500 Appliance Fan Installation

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    When you replace the failed fan, the cooling load is distributed back evenly across both fans, the failure LED goes out, and an the alarm silences.