Xtreme Power Conversion Corporation
G90 User’s Manual
Page 40
Uninterruptible Power Supply
UPS does not startup after pressing
the ON Button
Did not press the correct combina-
tion of buttons for “ON”
Press the 2 buttons at the same
time
UPS has not battery connected or
battery voltage is too low and too
many loads connected
Connect UPS battery securely. If
battery voltage is low, turn the UPS
OFF and remove some loads, then
start the UPS again.
Fault occurs inside UPS
Contact dealer or distributor for
assistance
The icon of charger status on LCD
display flashes and buzzer beeps
once per second
Charger does not work normally or
battery aged
Contact dealer or distributor for
assistance
Fault Codes
Fault Cause
Fault Code
Bus Fault
00 - 19
Inverter Fault
20 - 39
Over Heat
40 - 44
Output Short Circuit
45 - 49
Overload
50 - 54
Output Relay Fault
55 - 59
Input NTC Fault
60 - 64
Auxiliary Power Fault
65 - 69
Input Fuse Fault
70 - 74
Others
99
UPS Maintenance
This section explains how to:
• Care for the UPS and batteries
• Replace Extended Battery Packs (EBPs)
• Test new batteries
• Recycle used batteries or UPS
UPS and Battery Care
For the best preventative maintenance, keep the area around the UPS clean and dust-free. If the atmosphere is
very dusty, clean the outside of the UPS with a vacuum cleaner. For full battery life, keep the UPS and EBPs at an
ambient temperature of 25°C (77°F).
Note:
The batteries in the UPS are rated for a 3-5 year service life. The length of service life varies depending upon
the frequency of usage and ambient temperature. Batteries used beyond expected service life will often have se-
verely reduced runtimes. Replace batteries at least every 5 years to keep units running at peak efficiency.