TP48200A-DX12A1 Telecom Power
User Manual
4 Maintenance
Issue 07 (2019-11-15)
Copyright © Huawei Technologies Co., Ltd.
32
4
Maintenance
4.1 Routine Maintenance
Perform routine maintenance periodically based on site requirements. The recommended
interval is six months. If any fault occurs, rectify it in a timely manner.
Table 4-1
Routine maintenance checklist
Maintenance
Item
Check Item
Check Method
Repair When
Measure
Door lock
The door lock is
damaged.
By observation or
by locking and
unlocking the door
The door lock is
damaged.
Replace the
door lock.
Fan
Dust accumulates on
the fan.
By observation
Thick dust accumulates
on the fan.
Clean the dust.
The fan is intact, and
the rotation speed,
noise, and vibration
are in normal ranges.
By observing or
listening to the fan
The fan is damaged, the
vibration is abnormal, or
the noise is loud.
Replace the
fan.
TCUC control
board
The TCUC control
board works properly.
By observation or
by checking the
indicator and
alarms
The TCUC control board
does not work properly.
Replace the
TCUC control
board.
Air filter
Dust accumulates on
the dust filter.
By observation
The high temperature
alarm is generated
frequently, and the
temperature in the
cabinet is obviously
higher than the
ambient temperature.
Dust accumulates on
the dust filter.
Replacing an
Air Filter
Electricity
The output voltage is
normal.
Multimeter
The BLVD or LLVD
voltage exceeds the
threshold.
For details, see
4.2 Rectifying
Common