TP48200A-HX09A2, TBC300A-TCA2 Outdoor Power
System
User Manual
4 Maintenance
Issue 02 (2019-02-26)
Copyright © Huawei Technologies Co., Ltd.
43
Maintenance
Item
Maintenance Task
Check
Whether
Check
Method
Repair When
Measures
TCUA control
board
The TCUA
control board
works
normally.
By observing,
and checking
the indicator
and alarms.
The TCUA
control board
works
abnormally.
Replace the
TCUA control
board.
TEC04C
The TEC04C
works
normally.
By observing,
and checking
the fan and the
temperature.
The TEC
module is
damaged and
cannot
effectively cool
the air.
Replace the
TEC04C.
Air filter
The air filter is
covered by
dust.
View the air
filter.
Overtemper
ature alarm
happens
frequently
and the
temperature
inside the
cabinet is
much higher
than the
ambient
temperature.
Dust
accumulates
on the air
filter.
Replace the air
filter.
Electrical
specifications
The output
voltage is
normal.
Multimeter.
The battery
circuit voltage
or load circuit
voltage exceeds
its threshold.
For details, see
Preventive
maintenance
inspection
(PMI)
Indicators are
normal.
By observing.
An alarm is
generated.
Appearance
The paint or
electroplated
coating on the
cabinet flakes
off or has
scratches.
By observing.
The surface is
damaged or
distorted.
Repaint or
repair the shell.
Grounding
The ground
point properly
connects to the
ground bar in
By observing
the grounding
and using a
screwdriver or
The cable
connecting the
ground point
and the ground
Secure the
ground point or
replace the
cable.