NXRTi USER’S MANUAL
UNINTERRUPTIBLE POWER SUPPLY (UPS)
Xtreme Power Conversion Corporation (Rev 8/29/13)
Page 35
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
The voltage or frequency
of utility power exceeds
UPS input range
UPS is working in battery mode, save
disk and close the programs, make sure
AC mains voltage and frequency is in
the normal range
Anti-connection of utility
line and neutral
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
Utility 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
button
Short holding time
Press and hold the ON key for more
than 1s to start UPS
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
take off 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