Cisco WS-C3524-PWR-XL-EN Installation Manual page 96

Diagnosing Problems
Table 3-2 Common Problems and Their Solutions (continued)
Symptom
System LED is amber on the
Catalyst 3524-PWR XL.
Cisco IP Phone fails to power on
when connected to a
Catalyst 3524-PWR XL switch.
Catalyst 3500 Series XL Hardware Installation Guide
3-6
Possible Cause
Internal fan fault detected.
•
• Switch is overheating.
Nonfatal or fatal POST error
•
detected.
Improper cabling.
Chapter 3 Troubleshooting
Resolution
Either check the switch
•
itself or use the show env
command to check if a fan
on the switch has failed.
The
Catalyst 3524-PWR XL
switch can operate normally
with one failed fan. Replace
the switch at your
convenience.
• Use the show env command
to check if an
overtemperature condition
exists. If it does:
– Place the switch in an
environment that is
within 32 to 113°F
(0 to 45°C).
– Make sure fan intake
and exhaust areas are
clear.
If a multiple-fan failure is
causing the switch to
overheat, replace the
switch.
Use the show POST
•
command to see which
POST test failed.
Make sure the switch is
connected to the LAN-to-phone
jack on the Cisco IP Phone.
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