Controller Module Fault Leds Are On; Table 4-8 Controller Module Fault Leds Are On - Sun Microsystems Sun StorEdge A3500 Manual

4.3.3

Controller Module Fault LEDs are On

TABLE 4-8
Symptom
Power Supply
Fault LED on
(front panel and
canister LEDs)
Fan Fault LED on
(front panel and
canister LEDs)
4-12 Sun StorEdge A3500/A3500FC Controller Module Guide • August 1999
Controller Module Fault LEDs Are On
Possible Causes
Power supply missing or not
connected properly
Power supply overheated
Power supply failure (power
supply canister Fault LED on)
Key switch turned off on
expansion cabinet
Local/Remote switch on power
sequencer set to the wrong
state.
Power supply fan missing or
not connected properly
Power supply fan failure
(canister Fault LED on)
Controller fan failure
Corrective Action
1. Make sure power supply is locked
in place.
2. If LED still off, go to next cause.
Wait 10 minutes to see if power
supply LED turns on again. If it does,
go to recovery procedure. If not, go to
next cause.
Replace failed power supply.
Turn key switch to On position. Refer
to expansion cabinet manual.
Change switch setting. Refer to
expansion cabinet manual.
1. Check the LEDs on the power
supply fan.
2. If the Power LED is on and the
Fault LED is off, the unit is probably
okay. Go to next cause.
3. If the Power LED is off, make sure
power supply fan is locked in place.
4. If a unit Power LED remains off or
the Fault LED is on, go to next cause.
Replace failed power supply fan.
If the power supply fan looks normal,
it probably means a controller fan
failure. Replace the unit.
Reference
page 7-3
page 7-2
page 7-4
page 4-8
page 8-5
page 8-3