If a 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 overtemperature 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.
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
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Troubleshooting the Installation
Isolating Cooling Subsystem Problems