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5 – Diagnostics/Troubleshooting
Chassis Diagnostics
59021-05 A 5-11
5.2.4
Output Power LED Is Extinguished
The Output Power LED illuminates to indicate that the power supply is producing
the proper voltages. If the Output Power LED is extinguished, do the following:
1. Inspect the power supply Over Temperature LED. Is the power supply Over
Temperature LED illuminated?
■ Yes - Refer to ”Power Supply Over Temperature LED is Illuminated” on
page 5-11.
■ No - Continue.
2. Inspect the power cables and connectors. Are the cables unplugged? Are
the cables or connectors damaged?
■ Yes - Make necessary corrections or repairs. If the condition remains,
continue.
■ No - Continue.
3. Inspect the power source. Is the power source delivering the proper voltage?
■ Yes - Continue
■ No - Make necessary repairs. If the condition remains, continue.
4. Replace the power supply. Refer to Section 6 Removal/Replacement. If the
condition remains, contact your authorized maintenance provider.
5.2.5
Power Supply Over Temperature LED is Illuminated
The power supply Over Temperature LED illuminates to indicate that the power
supply is overheating. If the power supply Over Temperature LED illuminates, do
the following:
1. Inspect the chassis fans. Are the intake openings clear? Are both fans
operating and producing air flow?
■ Yes - Continue.
■ No - Remove any debris from fan intakes if necessary. Replace any
fan that is not operating. Refer to Section 6 Removal/Replacement. If
the condition remains, continue.
2. Consider the ambient air temperature near the switch and clearance around
the switch. Make necessary corrections. If the condition remains, continue.
3. Replace the power supply. Refer to Section 6 Removal/Replacement. If the
condition remains, contact your authorized maintenance provider.