PowerWalker VFI 1000 LE - Manual (Page 24)

- 24 -
3.12 Operation in fault mode
1) In case the Fault/Warning LED is lightened constantly and the buzzer
beep continuously, it shows that there is must a fatal error happen to the
UPS and it is operating in abnormal mode.
2) If fault happens, please notes and record what the display shows, the
display information is very important for the trouble shooing. Please refer
to the troubleshooting table in chapter 4 for detail.
3) Please check your loads, wiring, ventilation, mains, battery and so on
after the fault happens. Don’t try to turn on the UPS again before find out
the reason. If the trouble can’t be shoot, please contact the distributor or
service people.
4) In the emergency case, please cut off the connection from mains /
external battery / output immediately to avoid more risk or danger.