User Manual

624
Vess R2000 Series Product Manual Promise Technologies
OverheAting
Overheating is a potentially serious condition because the excessively high temperatures can lead to physical
drive failure and controller malfunction.
Overheating usually results from:
•
Fanfailure
• Inadequateaircirculationaroundtheenclosure
See “Replacing a Power Supply” on page 539.
Inadequate Air Circulation
Air circulation around the Vess R2600 enclosure might be a more complex problem. Use the thermometer icons
to help you locate the specic hot spot. Check for these conditions:
• Accumulated dust or objects blocking the fans
• Less than a minimum of 13 cm (5 inches) space between the back of the enclosure and the wall or other
object
• Ambient temperature above 35°C (95°F) where the subsystem is operating
• Failed Cooling Unit
To cool down an enclosure:
• Correct any problems identied above.
• Power it down and let it sit for an hour or longer.
If a Cooling Unit must be replaced, do not remove the failed unit until a replacement unit is available. A hole
on the back of the enclosure created by a missing Cooling Unit affects air circulation which will cause controller
units to overheat and shut down. If a replacement Cooling Unit is not available, leave the failed unit in place until
Important
In the event of a Cooling Unit failure, DO NOT remove the failed unit until
there is a replacement available and on hand. A single functioning Cooling
Unit is adequate for cooling the system as long as the failed Cooling Unit
remains in place. Removing the failed unit without replacing it will adversely
affect airow within the enclosure resulting in critical overheating and
shutdown of the enclosure.