Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 678

Supporting procedures
High Temperature Troubleshooting
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High Temperature Troubleshooting
High Temperature Threshold Exceeded
A high temperature threshold on a card has been exceeded. There may be a fan failure,
fan blockage, site climate control failure, lack of filler cards in empty slots, or a failed
sensor. This alarm is raised when a card is over the specified operating temperature
(measured by temperature sensors on the card).
Note: It may take several minutes for corrective actions to lower the temperature.
Corrective action
At the end of each step wait to see if the fault clears. If it doesn't, then go to the next step.
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1 Verify that the fan tray is installed and that no fan tray alarms are present. Correct any
faults found.
CLI
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Visually inspect the shelf to confirm that filler cards are installed in all empty slots in the
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shelf. This helps ensure proper airflow.
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3 Check for a dirty air filter. Clean or replace it as necessary. Contact your service
representative for replacement filters.
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Use a thermometer to measure the ambient air temperature at the intake of the fans. Verify
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that the ambient temperature is not abnormally high. If the ambient temperature is too
high, the NE may require additional cooling to bring it back to an acceptable operating
temperature.
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Verify if other cards in the shelf report temperatures near their upper limit (within 10 °C).
5
CLI
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3-70
show fan * alm
show card <sh/sl>
High Temperature Threshold Exceeded
1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011