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Problem
Line LED flickers
After AC connected to UPS,
alarm sounds short and
fast beeps and UPS shut
down
After starting the UPS,
alarm sounds short beeps
continuously, then the UPS
shuts down
Two short beep
continuously
Long beep
Two short beep
Short beep continuously
Three short beep
Four short beep
１４
Causes
AC grounding wire abnormal
AC abnormal
AC noise or environment
noise
UPS PCB abnormal
Bypass Operating
Due to over current, Bypass
Operating
No AC input
DC mode
A few seconds later, DC mode
will finish.
AC power voltage abnormal.
AC power frequency
abnormal.
Solutions
Check grounding wire with
assistance of power engineering
service
Check AC power
Check AC or battery wires
Call for service
Push the ON/OFF Key and change
to inverter operating
Reduce load, then it turns to
inverter operating automatically
Check AC power
Shut down your device soon.
Check AC power
Check AC power
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