HP Surestore Disk Array 12h - And FC60 Service Manual page 257

Troubleshooting
Table 34
Troubleshooting Controller Fan Module Problems
Symptom
Controller Fan Module
Fan Fault LED is on
No LEDs ON
Possible Cause
One or both of the fans in
the controller fan module
has failed.
The power supply fan
module is unplugged or
has failed.
The temperature sensor in
the controller fan module
has detected an over
temperature condition.
Controller fan module is
unplugged or has failed.
Procedure
Replace the controller fan module.
1. Make sure the power supply fan module
is plugged in correctly. Reseat the module
if necessary.
2. Check the LEDs on the power supply fan
module. If the Power LED is OFF or the
Fault LED is on, replace the power supply
fan module.
If the Power LED is ON and the Fault LED
is off, the problem may be caused by the
controller fan module.
Even if the fans in the controller module are
operating, an obstructed air flow path or a
high ambient temperature can cause the
temperature within the enclosure to rise.
Determine what is causing the temperature
problem and correct it.
1. Make sure the controller fan module is
plugged in correctly. Reseat the module if
necessary.
2. If the Power LED remains OFF, replace
the controller power module.
Controller Enclosure Troubleshooting
257