Replace a Power Cooling Module

The power cooling modules provide redundant power control and cooling of the system. If one power cooling module fails, the other power cooling module maintains the power supply and cooling while you replace the failed power cooling module. Electrical overload, inadequate internal and external airflow, dirt and dust, incorrect input voltage, or a short circuit can damage a power cooling module. Replace a failed power cooling module immediately; otherwise, damage from overheating and data loss can occur.

Prerequisites:

Before handling a component, touch a grounded surface to discharge any static electricity.
Attach an electrostatic discharge (ESD) wrist strap to your wrist, and stand on an ESD mat while replacing components.

WARNING: Do not remove covers from the power cooling modules. Power cooling modules produce a high-energy hazard.

Each Drive Enclosure has two power cooling modules located at the back of the Drive Enclosure. Power cooling modules are customer replaceable units (CRUs). You can replace a failed power cooling module without powering down the Drive Enclosure only if the other power cooling module is operational with a status of Normal.

The following figure shows the power cooling modules on the DE2-24P Drive Enclosure and the DE2-24C Drive Enclosure.

Figure 1 Power cooling modules (DE2-24P and DE2-24C Drive Enclosures)

Legend

1 Power cooling module 0 (DE2-24P Drive Enclosure)	3 Power cooling module 0 (DE2-24C Drive Enclosure)
2 Power cooling module 1 (DE2-24P Drive Enclosure)	4 Power cooling module 1 (DE2-24C Drive Enclosure)

Caution

Make sure you can replace the FRU or CRU within 10 minutes of removing the FRU or CRU. Do not remove a FRU or CRU if you cannot replace it within 10 minutes with a FRU or CRU or with a filler panel. If a FRU or CRU slot is left empty, the system can overheat due to improper airflow.

Procedure Overview