TP48200A-HT19C4-1 and TBC300A-TCA2 Telecom
Power
User Manual
Copyright © Huawei Technologies Co., Ltd.
4.1 Routine Maintenance..................................................................................................................................................40
4.2 Rectifying Common Faults.........................................................................................................................................41
4.2.1 AC Failure................................................................................................................................................................41
4.2.2 AC Over Volt ...........................................................................................................................................................42
4.2.3 AC Under Volt .........................................................................................................................................................42
4.2.4 DC Over Volt ...........................................................................................................................................................42
4.2.5 DC Under Volt .........................................................................................................................................................42
4.2.6 Batt Chg. Overcur....................................................................................................................................................43
4.2.7 LLVD Disconnected ................................................................................................................................................43
4.2.8 BLVD Disconnected................................................................................................................................................44
4.2.9 Batt Loop Trip..........................................................................................................................................................44
4.2.10 High Amb. Temp....................................................................................................................................................44
4.2.11 Low Amb. Temp. ...................................................................................................................................................45
4.2.12 High Amb. Humi. ..................................................................................................................................................45
4.2.13 Low Ambient Humidity.........................................................................................................................................46
4.2.14 Batt. High Temp.....................................................................................................................................................46
4.2.15 Batt. Low Temp. ....................................................................................................................................................46
4.2.16 Door Alarm............................................................................................................................................................47
4.2.17 Water Alarm...........................................................................................................................................................47
4.2.18 Smoke Alarm.........................................................................................................................................................47
4.2.19 Rect Fault...............................................................................................................................................................48
4.2.20 Rect Protection.......................................................................................................................................................48
4.2.21 Rect Comm Fault...................................................................................................................................................48
4.2.22 Load Loop Break...................................................................................................................................................49
4.2.23 AC SPD Fault ........................................................................................................................................................49
4.2.24 DC SPD Fault ........................................................................................................................................................49
4.3 Identifying Component Faults ....................................................................................................................................49
4.3.1 Identifying AC SPD Faults ......................................................................................................................................49
4.3.2 Identifying Circuit Breaker Faults ...........................................................................................................................50
4.3.3 Identifying Rectifier Faults......................................................................................................................................50
4.3.4 Identifying SMU Faults ...........................................................................................................................................50
4.4 Replacing Components...............................................................................................................................................50
4.4.1 Replacing a Rectifier ...............................................................................................................................................51
4.4.2 Replacing an SMU...................................................................................................................................................52
4.4.3 Replacing an AC SPD..............................................................................................................................................53
4.4.4 Replacing a Circuit Breaker.....................................................................................................................................54
4.4.5 Replacing the PCB of UIM02C...............................................................................................................................56
4.4.6 Replacing the Internal Circulation Fan of the Heat Exchanger ...............................................................................58
4.4.7 Replacing the External Circulation Fan of the Heat Exchanger ..............................................................................60
4.4.8 Replacing a TCUA Control Board...........................................................................................................................63
4.4.9 Replacing a TEC......................................................................................................................................................66
4.4.10 Replacing an Ambient Temperature and Humidity Sensor....................................................................................69
