Case Symptom Possible Cause Measure
Bypass
abnormal
The buzzer buzzes,
and the fault indicator
is on.
The bypass
thyristor is
damaged.
Replace the bypass
module.
The bypass
module
experiences
overtemperature.
Reduce the load, or
improve ventilation.
For details about component replacement and maintenance involved in Troubleshooting
and Alarm List, consult Huawei maintenance engineers.
UPS5000-E-(30 kVA–180 kVA)
User Manual (Integrated UPS) 7 Troubleshooting
Issue 02 (2022-12-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 155