50
Battery aged
When replace battery, contact
franchiser to get battery and
relative assembly
UPS doesn’t
startup after
pressing the ON
key
Didn’t press the
combination keys of
“on”
Press the two keys at the same
time
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 remove 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
The following table describes typical faulty conditions.
Table 23. Fault code for RT type
Fault Kind
Fault type
Operating Mode before fault
Byp Mode Line Mode Bat Mode BatTest Mode Eco Mode
Bus Fault
P Bus High
05
01
40
8
0
N Bug High
25
21
41
8
1
P Bus Low
35
31
7
0
9
0
N Bus Low
55
51
7
1
9
1
Bus unbalance
82
83
8
4
8
5
Soft fail
62
Inv Fault
High
04
24
42
8
6
Low
14
34
5
2
9
6
Soft fail
63
Bus discharge fail
61
Over Heat
33
06
08
43
5
3
INV short
16
02
44
7
3
OverLoad
03
09
45
6
5
Fan Fault
36
28
38
46
6
6
Charger Fault
07
17
27
Bat Over
1
1
1
2
1
3
InvRelaySht
76
LineNTCBreak
98
Shutdown Fault
97