
2. Ensure that the blower on the power supply is functioning properly. If not, correct the blower
condition and wait one minute.
3. Contact your authorized service representative.
Blower conditions
The format of a blower condition report is 0.3.en.ec,where:
• 0.3.istheblo
wer element type number
• en. is the two-character blower elem ent number
• ec is the error code
As shown in Fig
ure 48, blower 1isinlocation1andblower2isinlocation2.
CXO7953
21
Figure 48 Blower elem ent numbering
CAUTION:
Asingleblower operatingathighspeedcanprovidesufficient air flow to cool an enclosure and the
elements for up to 100 hours. However, operating an enclosure at temperatures appr oaching an
overheating threshold can damage elements and may reduce the MTBF of a specific element. Immediate
replacement of the defective blower is required.
The following sections define the power supply condition reports.
0.3.en.01 N ONCRITICAL condition—Blower speed
A blower is operating at a speed outside of the EMU specified range, possibly because of a bearing
problem. This can a ffect enclosure cooling and cause an element to fail. This condition report remains
active until the problem is corrected.
This error does not normally require immediate correction. However, an error of this type could contribute
to an element overheating.
HP recommends replacing the blower as soon as possible.
To correct this problem, record all six characters of the condition report, then contact your HP authorized
service representative.
0.3.en.02CRITICALcondition—Blowerspeed
A blower is operating at a speed that is significantly outside the EMU specified range, possibly because
of a bearing problem. This can cause the loss of co oling and cause an element to fail. The error remains
active until the problem is corrected.
HP recommends replacing the blower as soon as possible.
To correct this problem, record all six characters of the condition report, then contact your authorized
service representative.
124
EMU-generated c ondition reports
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