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Caution
Components inside the IP2255 appliance can overheat if they are
not cooled even for a short time. If you are replacing a failed fan unit
and do not completely remove power to the appliance, do not allow
the appliance to run without a fan unit for any longer than necessary.
The fan unit is hot swappable, which means you can remove and install the
fan unit on the front of the appliance without shutting down the device.
To replace a fan unit
1. Locate the fan unit on the front of the appliance and the two retaining
2. Loosen the screws by turning them counterclockwise.
3. Slowly pull the fan unit out of the chassis toward the front.
4. If the appliance is running, immediately install a replacement fan unit by
Nokia IP2255 Security Platform Installation Guide
screws that secure it to the chassis.
Retaining screws
sliding it into the security platform.
Replacing the Fan Unit
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