Owner's manual

1. Record all six characters of the condition report.
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 ser vice representative.
Blower conditions
Theformatofa
blower condition report is 0.3.en.ec,where:
• 0.3.istheblower element type number
• en. is the two-character blower element number
• ec is the erro
rcode
As shown in Figure 5 7, blower 1isinlocation1andblower2isinlocation2.
CXO7953
A
1
2
Figure 57 Blower element n umbering
CAUTION:
Asingleblower operatingathighspeedcanprovidesuffi cient air fl ow to cool an enclosure and the
elements for up to 100 hours. Ho wever, oper ating an enclosure at temperatures approaching 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 NONCRITICAL condition—Blower speed
A blower is operating at a speed outside of the EMU specified range, possibly because of a bearing
problem. This can affect enclosure cooling and c ause 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 elem ent overheating.
HP recommends replacing the blower as soon as possible.
To correct this problem, record a ll six characters of the co ndition 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 ca n cause the loss of cooling and cause an elem ent 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 authorize d
service representative.
128
EMU-generated condition reports