Identifying Faults; Identifying Rectifier Faults - Huawei ETP4830-A1 User Manual

ETP4830-A1
User Manual

Measures
1.
2.
3.

7.3 Identifying Faults

7.3.1 Identifying Rectifier Faults

Table 7-2 Identifying rectifier faults
Symptom
The Run indicator (green)
is off.
The Run indicator (green)
is blinking (0.5 Hz).
The Run indicator (green)
is blinking (4 Hz).
The Alarm indicator
(yellow) is steady on.
The Alarm indicator
(yellow) is blinking.
Issue 06 (2014-02-20)
The rectifier is faulty.
Check whether the rectifier is removed. If yes, reinstall it.
If the rectifier is in position, remove the rectifier and reinstall it.
If the alarm still exists, replace the rectifier.
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Possible Cause
There is no AC input, or
the rectifier is faulty.
The rectifier is being
queried manually.
Software is being loaded.

The rectifier protects
against overtemperature.

The rectifier protects
against AC input
overvoltage or
undervoltage.

The rectifier is faulty.
Communication between
the rectifier and the SMU is
7 Maintenance
Measures
Check whether the AC input
is normal. If the AC input is
normal, replace the rectifier.
If the AC input is normal and
the green indicators on all
rectifiers are off, replace the
AC/DC power distribution
subrack.
Exit the query status. The Run
indicator recovers to be steady
on.
After software loading is
complete, the indicator stops
blinking.

If the ambient temperature
is higher than the upper
threshold, lower the
ambient temperature.

If the air intake vent or the
air exhaust vent is
blocked, unblock it.

If the AC input is
abnormal, ask mains
maintenance personnel to
rectify the fault.
 If the fault persists, the
rectifier may be faulty. In
this case, replace the faulty
rectifier.
Clean the edge connector of
the faulty rectifier. If the
Alarm indicator is still
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