Dell PowerVault NX3500 - Manual (Page 96)

96 Troubleshooting Your System
Troubleshooting Power Supply
CAUTION: At least one power supply must be installed for the system to operate.
Operating the system with only one power supply installed for extended periods of
time can cause the system to overheat.
1 Reseat the power supply by removing and reinstalling it. See "Power
Supplies" on page 77.
NOTE: After installing a power supply, allow several seconds for the
system to recognize the power supply and to determine if it is working
properly. The power indicator turns green to signify that the power supply
is functioning properly.
2 If the problem persists, replace the faulty power supply.
If the problem is not resolved by replacing the power supply, see "Getting
Help" on page 113.
Troubleshooting System 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 none of the following conditions exist:
• System cover, cooling shroud, drive blank, power-supply blank, or back
filler bracket is removed.
• Ambient temperature is too high.
• External airflow is obstructed.
• An individual cooling fan is removed or has failed. See "Troubleshooting a
Fan" on page 97.
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