Manual

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
Theformatofablower condition report is 0.3.en.ec,where:
• 0.3.istheblo
wer element type number
• en. is the two-character blower element number
• ec is the error code
As shown in Fig
ure 42, blower 1isinlocation1andblower2isinlocation2.
CXO7953
A
21
Figure 42 Blower element numbering
CAUTION:
Asingleblower operatingathighspeedcanprovidesufficient air flow to cool an enclosure and the
elements for up to 100 hours. However, operating an enclosure at temperatur es approaching an
overheating threshold can damage elements and may reduce the MTBF of a specific element. Immediate
replacement of the defective blower is require d.
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 a n element to fail. This condition report remains
active until the problem is corrected.
This error d oes not normally require immediate c orrection. 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 EM U specified range, possibly because
of a bea ring problem. This c a 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 authorized
service representative.
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EMU-generated condition reports