73
7.
Troubleshooting
The following messages are the information that users would find on
UPS when it meets some problems. Users can judge if the fault is caused
by external factors and know how to deal with it by making full use of
the information.
Fault indicator on, indicates that the UPS has detected some faults.
Buzzer beeps, indicates that UPS need to be paid attention to, if beeps
for a long time, it means that there is something wrong with the
machine. If you need help, contact our service department, the
following messages should be provided for analysis:
◆UPS MODEL and SERIAL No.
◆Date of fault happened
◆Detailed description of the problem (include indicator statements on
cover)
The following table describes typical alarm conditions.
Table 22.
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