TP48120A-HD15A1, TP48120A-HD15A2,
TP48200A-HD15A1, and TP48200A-HD15A2 Telecom
Power
User Manual
4 Maintenance
Issue 03 (2020-01-04)
Copyright © Huawei Technologies Co., Ltd.
39
4
Maintenance
4.1 Routine Maintenance
Routine maintenance is required periodically based on the site requirements. The
recommended maintenance interval is six months. If any faults occur, rectify the faults in
time.
Table 4-1
Routine maintenance checklist
Maintenance
Item
Check Whether
Check Method
Repair When
Measures
Cabinet door
lock
The door lock is
damaged.
By observing, or by
locking and
unlocking the door.
The door lock fails.
Replace the door
lock.
Fan
Dust accumulates on
the fan surface.
By observing.
Thick dust
accumulates on the
fan surface.
Clean up the dust
from the fan.
The fan surface is
intact and the
rotational speed, noise,
and vibration is in the
normal range.
By observing and
listening to the fans.
The fan is damaged,
the noise is too
loud, or the
vibration is
abnormal.
Replace the fan.
Heat exchanger
Dust accumulates on
the surface of the heat
exchanging core.
By observing or
checking the
temperature.
Thick dust
accumulates on the
surface of the heat
exchanging core,
and the temperature
inside the cabinet is
overhigh.
Clean or replace the
heat exchanging
core.
Heater
The heater works
normally.
By observing or
checking the
temperature.
The heater is
damaged and
cannot effectively
heat the air.
Replace the heater.
Electrical
specifications
The output voltage is
normal.
Multimeter.
The battery circuit
voltage or load