Troubleshooting  55 
Troubleshooting 
LED troubleshooting 
  
Utility 
LED 
On 
Battery 
LED 
On 
Bypass 
LED 
Self Test 
LED 
Battery 
Fault LED 
Site 
Wiring 
Fault LED 
Over 
Temp 
LED 
Overload 
LED 
Condition 
On—Lo
ad 
<10% 
Off  Off  On—Loa
d >10% 
On—Loa
d >25% 
On—Loa
d >50% 
On—Loa
d >75% 
Off  UPS is in Operate mode (on 
page 40) 
Flashing 
Off  Off  Off  *  *  *  Off  UPS is in Standby mode (on 
page 40) 
Off 
Off  On  On—Loa
d >10% 
On—Loa
d >25% 
On—Loa
d >50% 
On—Loa
d >75% 
Off  UPS is in Auto-Bypass mode 
(on page 41) 
Flashing 
Flashing  Flashing  Off  Off  Off  Off  Off  UPS is in Converter Off mode 
(on page 57) 
Off 
General alarm condition (on 
page 57)—UPS is in 
Auto-Bypass mode 
On 
Off  Flashing  *  *  *  *  *  Bypass is out of range (on page 
58) 
* 
Off  *  Off  Flashing  *  *  *  Battery condition (on page 
58)—Batteries are 
disconnected or battery test 
failure 
Off 
Flashing  Off  Off  Off  Off  Off  Off  Low battery (no utility power) 
("UPS is on battery" on page 
58)