Power Supply Unit LED Behavior - Front Panel
LED Behavior
Steady green
Steady red or
amber
Off
Power Supply Unit LED Behavior - Rear Panel
LED
Instructions
Behavior
Steady green
The PSU is connected and running normally.
Flashing
AC is present, only 12VSB on (PSU off), or PSU in
green at 1Hz
Smart-On state.
Steady read
AC cord is unplugged, or AC power is lost, while the
or amber
second PSU still has AC input power.
PSU failure - voltage, current, temperature, or fan.
Flashing read
PSU warning events, where the PSU continues to
or amber at
operate; high temperature, high power, high current,
1Hz
slow fan.
Off
No input AC power at all PSUs.
Instructions
All units are connected and running
normally.
A PSU is faulty or disconnected.
N / A
Action Required
None.
Make sure the AC cable is plugged in to
the PSU.
Make sure there is the AC power.
If the problem persists, replace the faulty
PSU.
None.
Action Required
None.
Contact
Support
Plug in the AC cord to
the faulty PSU.
Make sure there is the
AC power.
Check the voltage of
your AC power.
If voltage is OK, contact
Check Point Support
Contact
Support
Make sure there is the
AC power.
Plug in the AC cords.
If the AC power is OK,
contact
Support
Quantum Maestro Getting Started Guide | 38
LEDs
Check Point
.
.
Check Point
.
Check Point
.
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