Figure 43 Fan Cooling Module Fault Leds; Figure 44 Power Supply Unit Fault Leds - Seagate Exos E 2U12 Series Hardware Installation And Maintenance Manual

LED
Power supply unit fault LEDs
Each power supply unit (PSU) has three status LEDs. The asterisk (*) indicates a fault condition.
LED
Type PSU fault AC fault PSU OK
Color Amber
Flashing
State
On*
Off
Off
64 Chapter 8 Hardware installation and configuration issues
Type Color State
On
FCM OK Green
Off*
On*
FCM fault Amber
Off

Figure 43 Fan cooling module fault LEDs

Status
N/A
Amber Green
Off AC power not present
On* Off PSU present, but not supplying power
Off Firmware download to PSU in progress
Off On AC power present, power switch is on, providing power
Off Flashing AC power present, PSU on standby, other PSU providing power
On* Communication with input/output module (IOM) lost
N/A Off PSU hardware fault
On* Off PSU alert state or hardware fault: over temperature, over voltage, or over current
On* Off AC power failed, PSU not providing power, other PSU providing power
On* AC power failed, PSU running on battery

Figure 44 Power supply unit fault LEDs

Status
FCM hardware functioning properly
FCM hardware fault: over temperature, over voltage, over current
Fan speed is out of tolerance
Communication with input/output module (IOM) lost
FCM hardware functioning properly