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
220
Troubleshooting the Installation
Isolating Cooling Subsystem Problems
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