TP48200E-H12C1 (Nepal, Ncell)
User Manual
4 Maintenance
Issue 01 (2015-05-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
17
4
Maintenance
4.1 Routine Maintenance
Perform routine maintenance periodically based on site requirements. The recommended
interval is six months. If any fault is detected, rectify it promptly.
Table 4-1
Routine maintenance checklist
Maintenan
ce Item
Maintenance Task
Check That…
By…
If…
Do…
Cabinet door
lock
The door lock is
proper.
Observing
, locking
and
unlocking
the door
The door lock
fails.
Replace the door
lock.
Fan
No thick d
ust
accumu
lates on
the fan.
Observing
Thick dust
accumulates on the
fan.
Clean up the dust
from the fan.
The fan is intact,
and the
rotational speed,
noise, and
vibration are
within their
normal ranges.
By
observing
and
listening
The fan is
damaged, the
rotational speed or
vibration is
abnormal, or the
noise is too loud.
Replace the fan.
Heat
exchanger
No thick dust
accumulates on
the heat
exchanger core.
Observing
Thick dust
accumulates on the
heat exchanger
core.
Clean up the dust
from the heat
exchanger core.
Electrical
connection
The output
voltage is
normal.
Using a
multimeter
The BLVD or load
LLVD voltage
exceeds its
threshold.
For details, see 4.2
Rectifying Common
Faults.