Troubleshooting Cooling Problems; Troubleshooting Cooling Fans - Dell PowerEdge FX2 Owner's Manual

NOTE: After installing a PSU, allow several seconds for the system to recognize the PSU and
determine whether it is working properly.
3. If the problem is not resolved, swap or replace the PSU with a known good PSU.
4. If none of the power supplies show a fault LED and the sleds do not power on, check the CMC for
status messages. For more information, see the Dell PowerEdge FX2 CMC User's Guide at Dell.com/
esmmanuals.
5. If the problem persists, see

Troubleshooting cooling problems

CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
Ensure that the following conditions exist:
• System cover, sled blank(s), or expansion-card filler bracket(s) is not removed.
• Ambient temperature is not too high.
• External airflow is not obstructed.
NOTE: To maintain optimum thermal conditions, ensure that there are no obstructions to
airflow on the front and back of the enclosure. The front and back of the enclosure must have at
least 30 cm (12 inches) and 61 cm (24 inches) of unobstructed space respectively.
• A cooling fan is not removed or has not failed.
• The expansion card installation guidelines are followed.

Troubleshooting cooling fans

Prerequisites
CAUTION: The power supply units (PSUs) are hot swappable. Remove and replace only one PSU
at a time in a system that is turned on. Leave a failed PSU installed in the enclosure until you are
ready to replace it. Operating the system with a PSU removed for extended periods of time can
cause the system to overheat.
Steps
1. Log in to the CMC web interface and identify the faulty fan. For more information, see the Dell
PowerEdge FX2 CMC User's Guide at Dell.com/esmmanuals.
2. Open the system. See
3. Reseat the fan.
4. If the fan functions properly, close the system.
5. If the fan is faulty, install a new fan.
6. Close the system.
If the replacement fan does not operate, see
88
Getting Help.
Opening The System.
Getting Help.