Vertiv Liebert iCOM - 11 Performing Diagnostics; 11.1 Cooling Unit Status LED; 11.2 Enabling Manual Mode for Diagnostics

11 Performing Diagnostics
NOTE: Depending on the type of thermal management unit, included components, and control settings of your system,
all of the options listed may not be available on your Vertiv™ Liebert® iCOM™ display.
11.1 Cooling Unit Status LED
Just below the Vertiv™ Liebert® iCOM™ touchscreen display is an LED that changes color and flashes on and off to indicate
cooling unit status. See Table 11.1 below , for the LED colors and meanings.
State Color(s) Meaning
Solid Green Powered on and operating.
Solid Amber In diagnostic/service mode or powered-off.
Solid Red Active warning or alarm present and acknowledged.
Flashing Amber/Green In sleep or U2U stand-by mode and available to operate.
Flashing Red/Green Operating with an active warning or alarm.
Flashing Amber/Red Shut down (not operating) because of an unacknowledged alarm.
Flashing Red Active warning or alarm present but unacknowledged.
Flashing Blue Liebert® iCOM™ display is starting up or updating Liebert® iCOM™ firmware.
Table 11.1 CoolingUnit LED Colors and State Meanings
11.2 Enabling Manual Mode for Diagnostics
Use manual mode to test components, validate operation, and evaluate performance.
NOTE: When manual mode is enabled, the cooling unit does not operate normally:
• Fan operation depends on the diagnostic category in use.
• Safety routines will prevent the use of some diagnostic features.
• Active alarms may prevent some the use of some diagnostic functions.
• In most cases, all components are turned off.
NOTE: When manual mode is disabled, all components and the cooling unit return to normal operation. See Disabling
Diagnostics Manual Mode on the next page . Manual mode will timeout after 30 minutes of inactivity and normal
operation resumes.
1. Touch , then > Diagnostic/Service > Diagnostics > Manual Mode in the Category list. The MANUAL
MODE panel displays.
2. Touch the Enable check box in the upper-right of the MANUAL MODE panel. The MANUAL MODE confirmation
dialog opens.
3. Touch OK to enable manual mode. Enable is checked and manual control for diagnostics enabled.
• Touch Cancel to close the dialog and manual mode remains disabled.
11 Performing Diagnostics
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Vertiv™ Liebert® iCOM™Installer/User Guide