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