Rectifying Common Faults; Ac Failure - Huawei Telecom Power TP48200A-HX09A3 User Manual

TP48200A-HX09A3, TP48200A-HX09A4,
TBC300A-DCA3, TBC300A-DCA5 and
TBC300A-TCA2 Telecom Power
User Manual
Maintenance
Item
board
TEC04C
Electrical
specifications
Preventive
maintenance
inspection (PMI)
Appearance
Grounding

4.2 Rectifying Common Faults

4.2.1 AC Failure

Possible Causes



Measures
1.
2.
Issue 04 (2019-11-15)
Check Whether Check Method
board works checking the
normally. indicator and
alarms
The TEC04C works By observing, and
normally. checking the fan
and the
temperature.
The output voltage Multimeter
is normal.
Indicators are By observing
normal.
The paint or By observing
electroplated
coating on the
cabinet flakes off or
has scratches.
The ground point By observing the
properly connects grounding and
to the ground bar in using a screwdriver
the equipment or wrench.
room.
The AC input power cable is faulty.
The AC input circuit breaker is OFF.
The power grid is faulty.
Check whether the AC input cable is loose. If so, secure the AC input cable.
Check whether the AC input circuit breaker is OFF. If so, handle the fault which caused
the AC input circuit breaker to turn OFF and then switch on the circuit breaker.
Copyright © Huawei Technologies Co., Ltd.
Repair When Measures
board works control board.
abnormally.
The TEC module is Replace the
damaged and TEC04C.
cannot effectively
cool the air.
The battery circuit For details, see 4.2
voltage or load Rectifying
circuit voltage Common Faults.
exceeds its
threshold.
An alarm is
generated.
The surface is Repaint or repair
damaged or the shell.
distorted.
The cable Secure the ground
connecting the point or replace the
ground point and cable.
the ground bar in
the equipment room
is loose or
damaged.
4 Maintenance
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