Troubleshooting Enclosure Cooling Problems; Troubleshooting A Fan - Dell PowerVault MD1120 Hardware Owner's Manual

If the DC power LED is not lit, verify that the power switch is turned on. If
the power switch is turned on, continue to step 3.
If the power supply's fault indicator is lit, continue to step 3.
NOTICE:
Power supply/cooling fan modules are hot-pluggable. The enclosure can
operate on a single functioning power supply; however, both modules must be
installed to ensure proper cooling. A single power supply/cooling fan module can
be removed from the enclosure for up to 5 minutes, provided the other module is
functioning properly. After 5 minutes, the enclosure will overheat and may cause an
automatic thermal shutdown.
2 Ensure that the power supply is properly installed by removing and re-
installing it. See "Removing and Installing the Power Supply/Cooling Fan
Module" on page 35.
NOTE:
After installing a power supply, allow several seconds for the enclosure
to recognize the power supply and to determine if it is working properly.
3 If the problem persists, see "Getting Help" on page 53.

Troubleshooting Enclosure Cooling Problems

Problem
• Systems management software issues a fan-related error message.
Action
Ensure that none of the following conditions exist:
• Ambient temperature is too high.
• External airflow is obstructed.
• A power supply/cooling fan module has failed. See "Troubleshooting a Fan"
on page 48.

Troubleshooting a Fan

Problem
• Enclosure-status indicator is amber.
• Systems management software issues a fan-related error message.
• Fan status indicator indicates a problem with the fan.
48
Troubleshooting Your Enclosure