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6.2
Troubleshooting
When the fault occurs, firstly, perform troubleshooting by referring to the
troubleshooting table. If the fault still exists, please contact the franchiser.
Fault
Cause
Solution
The “INPUT”
letters on LCD
display section
flashes
Anti-connection of
mains live and neutral
or mains is out of
range
Re-connect the input power cable and make
a correct connection
Battery capacity
indicator flashes
Battery low voltage or
battery disconnected
Check UPS battery, connect battery well, if
battery damaged, replace it
Mains normal, but
UPS has no input
UPS input breaker
open circuit
Press the breaker for reset
Short back up time
Battery not fully
charged
Keep UPS connecting with mains power for
more than 8 hours, recharge battery
UPS overload
Check the usage of loads, remove some
redundant devices
Battery aged
When replace battery, contact franchiser to
get battery and relative assembly
UPS doesn’t
startup after
pressing the ON
key
Didn’t press the
combination keys of
“on”
Press the two keys at the same time
UPS has no battery
connected or battery
voltage low and too
many loads connected
Connect UPS battery well, if battery voltage
low, please turn off UPS and remove some
loads, then start UPS
Fault occurs inside
UPS
Contact supplier for servicing
The icon of
charger status on
LCD display
flashes and buzzer
beeps once per
second
Charger doesn’t work
normally or battery
aged
Contact supplier for servicing