UPS2000-A-(6 kVA-10 kVA) 
User Manual 
 
Copyright © Huawei Technologies Co., Ltd. 
 
7 Routine Maintenance 
7.1 UPS Maintenance 
 
 
 
Only trained personnel are allowed to perform maintenance. Before performing operations 
on a device, wear electrostatic discharge (ESD) clothes, ESD gloves, and an ESD wrist 
strap. Do not wear jewelry or watches during the operation to avoid electric shocks or 
burns. 
 
Use insulated tools when maintaining internal devices. Only trained personnel are allowed 
to perform maintenance.   
 
Maintain UPSs regularly based on the following requirements. Otherwise, the UPSs may 
fail to operate properly and the lifespan may be shortened. 
7.1.1 Monthly Maintenance 
Table 7-1 Monthly Maintenance 
 
Ambient temperature: 
0–40°C 
 
Humidity: 0–95% RH 
(non-condensing) 
 
If the humidity and 
temperature are 
abnormal, check the air 
conditioner status. 
 
If the input voltage is 
abnormal, check the 
power grid status and 
input cable connection. 
Check that all units are 
operating properly by 
observing the status icons on 
the LCD, all operating 
parameters are within their 
normal ranges, and no fault 
or alarm information is 
If an alarm is present, rectify 
the fault by checking the 
device status and 
parameters.