If you must replace the fan module during operations and both of the above conditions are not met, leave the
fan module that you need to replace in the chassis to preserve the designed airflow until you have the required
module.
Step 1
Unscrew the captive screw that secures the fan module to the chassis (see the following figure).
Figure 9: Removing a Fan Module
Holding the handle on the fan module, slide it out of
the chassis.
2
Loosen the captive screw so that it is no longer in
contact with the chassis.
1
Step 2
Pull the fan module handle to slide the module out of the chassis.
To prevent electrostatic discharge (ESD) damage to the module electronics, do not touch the electrical
connectors on the back side of the module. Also, to prevent any damage to the electrical connectors, prevent
them touching anything that can bend or break them.
Caution
Step 3
Place the removed module on an antistatic surface or in an antistatic bag. If possible, repack the module in its packing
materials for safe shipping or storage.
Step 4
Follow these steps to replace the missing fan module within two minutes to avoid a shutdown.
a) Remove the replacement fan module from its packing materials and place it on an antistatic surface.
Hold the module by its handle and do not touch the electrical connectors on its backside. Also, to protect the electrical
connectors, avoid letting them come in contact with anything other than the electrical connectors inside the chassis.
b) Verify that you have the right fan module for the chassis. The correct fan module has one of the following part
numbers:
•
N9K-C9300-FAN3-B (port-side exhaust airflow direction and a blue stripe)
•
N9K-C9300-FAN3 (port-side intake airflow direction and a burgundy stripe)
Be sure that the airflow direction of the new fan module matches the airflow direction of the other fan and
AC power supply modules already installed in the chassis. Port-side intake airflow is indicated with burgundy
or green coloring, and port-side exhaust airflow is indicated with blue or gray coloring.
Note
Cisco Nexus 9336PQ ACI-Mode Switch Hardware Installation Guide
34
Replacing Modules
Replacing a Fan Module During Operations