5 – Diagnostics/Troubleshooting Power Supply Diagnostics
S
5.4
Power Supply Diagnostics
A model 5202/5602 switch power supply has a Status LED (Green) and a Fault LED (Amber) as shown in Figure
Power Supply
Status LED
Power Supply
Fault LED
Figure 5-3. Model 5202/5602 Switch Power Supply LEDs
Consider the following indications:
All power supply LEDs are normal, yet the System Fault LED is illuminated and the Heartbeat LED does not show a blink pattern. This means that the two power supplies have different air flow directions. Replace the power supply with the incorrect air flow direction with another having the correct air flow direction. Air flow direction is marked on the power supply part number label. Refer to “Power Supply Removal and Replacement” on page
Power Supply Fault LED is illuminated. This means that the power supply is failing or has failed. Replace the power supply with another having the same air flow direction. Air flow direction is indicated on the power supply part number label. Refer to “Power Supply Removal and Replacement” on page