Q-Logic SB2A-16B Chassis Over Temperature LED is Illuminated, Input Power LED Is Extinguished

0	5 – Diagnostics/Troubleshooting
	Chassis Diagnostics

5.2.1

Chassis Over Temperature LED is Illuminated

The chassis Over Temperature LED illuminates to indicate that the switch logic circuitry has exceeded the failure temperature threshold. The default failure temperature threshold is 70° C. You can set the failure temperature threshold using the Set Setup System command. Refer to the ”Set Setup Command” on page B-49for more information. If the chassis Over Temperature LED illuminates, do the following:

1.Enter the Show Setup System command to display the failure temperature threshold. The default is 70° C. Is the failure temperature threshold to low?

„Yes - Use the Set Setup System command to set the failure temperature threshold to the 70° C.

„No - Continue.

2.Inspect the chassis fans. Are the intake openings clear? Are all fans operating and producing air flow?

„Yes - Continue.

„No - Remove any debris from fan intakes and exhausts if necessary. Replace any fan that is not operating. Refer to

Section 6 Removal/Replacement. If the condition remains, continue.

3.Consider the ambient air temperature near the switch. Make necessary corrections. If the condition remains, shut down the switch immediately and contact your authorized maintenance provider.

5.2.2

Input Power LED Is Extinguished

The Input Power LED illuminates to indicate that the switch logic circuitry is receiving proper voltages. If the Input Power LED is extinguished, inspect the Output Power LED. Is the Output Power LED illuminated?

„Yes - Contact your authorized maintenance provider.

„No - Refer to ”Output Power LED Is Extinguished” on page 5-12.

59021-09 A 5-11