Trouble Shooting
True Online 6-20k UPS User Manual
31
Seq. Items 0 1 Solution
installed.
32 16
Positive bus over
voltage
OK Fault UPS requires service
33
A2
1
Negative bus over
voltage
OK Fault UPS requires service
34 2 Fan Fault OK Fault At least one of fans fail.
35 3 Reserved
36 4 Reserved
37 5
Positive bus
under voltage
OK Fault UPS requires service
38 6
Negative bus
under voltage
OK Fault UPS requires service
39 7 Battery reversed OK Fault
Check if the battery wires
connection is OK
40 8 Reserved
41 9 Reserved
42 10 Reserved
43 11 Reserved
44 12 Reserved
45 13
Battery over
temperature
OK Fault
Check if environmental temp is
too high or batteries life is over
46 14 Reserved
47 15 Reserved
48 16 Reserved
49
A3
1
Battery voltage
low
OK Fault
50 2 Reserved
51 3 Battery EOD OK Fault
52 4 Reserved
53 5 Reserved
54 6 Reserved
55 7 BYP voltage Fault OK Fault
Check if bypass input voltage is
normal
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