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Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
OL-26701-02
Chapter 4 Troubleshooting the Installation
Troubleshooting the Cooling Subsystem
Step 2 Eject and reseat the fan tray making sure the captive screws are securely tightened to a torque of
10 +/–1 in-lb.
If the fan tray still does not function, go to Step 3.
Step 3 Check for +12 VDC power by looking at the LED indicators on each power module:
• If the Pwr OK indicator is on and the Fault indicator is off on each power module, it indicates that
the fan tray is receiving +12 VDC:
–
If the fan tray is still not functioning, there could be a problem with the fan tray controller card
or an undetected problem in the fan tray cable. Replace the fan tray.
–
If the new fan tray does not function, contact a Cisco customer service representative for
assistance.
• If the Fault indicator is on, the power supply is faulty. Replace the power supply.
• If the Temp and Fault indicators are on, an over-temperature condition exists:
–
Verify that the power supply fan is operating properly.
–
If the fan is not operating, replace the power supply.
–
Contact your Cisco representative if replacing the power supply does not fix the problem.