Figure 41 Blower element numbering
CAUTION:
A single
blower
operating at high speed can provide sufficient air flow to cool an
enclosure and the elements for up to 100 hours. However, operating 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 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.02 CRITICAL condition—Blower speed
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 cooling 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.
0.3.en.03 UNRECOVERABLE condition—Blower failure
A
blower
has stopped. The operational blower now operates at high speed and is a single point
of failure. This condition report remains active until the problem is corrected.
To correct this problem, record all six characters of the condition report, then contact your authorized
service representative.
0.3.en.04 UNRECOVERABLE condition—Blower internal
A power supply reported an internal
blower
error that could affect enclosure cooling and cause
an element to fail. HP recommends correcting the problem before the blower fails. This condition
report remains active until the problem is corrected.
To correct this problem, record all six characters of the condition report, then contact your HP
authorized service representative.
0.3.en.05 NONCRITICAL condition—Blower missing
A
blower
has been removed or is improperly installed. Even though the blower flaps close to
maintain the proper air flow, the reduced cooling capability can cause overheating, causing an
element to fail. This condition report remains active until the problem is corrected.
To correct this problem, record all six characters of the condition report, then contact your HP
authorized service representative.
Correcting errors
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