29
3
OPERATION
3.5 Troubleshooting
PURPOSE:
Describes the UPS's troubleshooting procedure
FAULT
ALARM
Start
LED FLASHING
Is
the FAULT
(110%) LED ON
or FLASHING?
LED OFF
LED ON
YES
Simultaneously press
the % Load and %
Batt buttons for 1
second.
1
Sec
1
Sec
The LEDs now show
a fault code which is
read out on Figure
3.1. Their definitions
are listed in Figure
3.2.
S
T
L
U
A
F
S
T
L
U
A
F
S
T
L
U
A
F
S
T
L
U
A
F
S
T
L
U
A
F
n
o
i
t
i
d
n
o
C
n
o
i
t
i
d
n
o
C
n
o
i
t
i
d
n
o
C
n
o
i
t
i
d
n
o
C
n
o
i
t
i
d
n
o
C
M
O
R
P
E
E
M
O
R
P
E
E
M
O
R
P
E
E
M
O
R
P
E
E
M
O
R
P
E
E
*****
t
r
o
h
S
t
r
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h
S
t
r
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h
S
t
r
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h
S
t
r
o
h
S
t
i
u
c
r
i
C
w
o
L w
o
L w
o
L w
o
L w
o
L
y
r
e
t
t
a
B
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g
a
t
l
o
V
h
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H
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H
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H
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H
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H
y
r
e
t
t
a
B
e
g
a
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V
h
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H
h
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H
h
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i
H
h
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H
h
g
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H
e
g
a
t
l
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V
t
u
p
t
u
O
h
g
i
H
h
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H
h
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H
h
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H
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H
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r
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t
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p
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T
d
a
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l
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v
O
d
a
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O
d
a
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O
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v
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d
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p
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T
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p
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T
e
b
o
r
P
d
e
g
g
u
l
p
n
U
D
E
L
%
0
1
1
N
ON
ON
ON
O N
O
N
ON
ON
ON
O N
O
N
ON
ON
ON
O N
O
N
ON
ON
ON
O N
O
N
ON
ON
ON
O N
O
N
ON
ON
ON
O N
O
N
ON
ON
ON
O N
O
N
ON
ON
ON
O N
O
D
E
L
%
0
0
1
N
ON
ON
ON
O N
O
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
N
ON
ON
ON
O N
O
D
E
L
%
5
7
N
ON
ON
ON
O N
O
N
ON
ON
ON
O N
O
D
E
L
%
0
5
N
ON
ON
ON
O N
O
G
N
I
H
S
A
L
F
G
N
I
H
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A
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F
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N
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N
I
H
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A
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F
G
N
I
H
S
A
L
F
D
E
L
%
5
2
N
ON
ON
ON
O N
O
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
S
M
R
A
L
A
S
M
R
A
L
A
S
M
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A
L
A
S
M
R
A
L
A
S
M
R
A
L
A
n
o
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t
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C
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C
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C
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C
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n
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q
e
r
F
L
L
P L
L
P L
L
P L
L
P L
L
P
d
a
o
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r
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v
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d
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L w
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L w
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L w
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t
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p
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O
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g
a
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V
w
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L w
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L w
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L w
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L w
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L
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a
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p
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T
h
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H
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H
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H
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H
h
g
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H
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r
u
t
a
r
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p
m
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T
D
E
L
%
0
1
1
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
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A
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N
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N
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N
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N
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A
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A
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N
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A
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N
I
H
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A
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F
G
N
I
H
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A
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F
G
N
I
H
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A
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F
G
N
I
H
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A
L
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G
N
I
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A
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F
G
N
I
H
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A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
D
E
L
%
0
0
1
N
ON
ON
ON
O N
O
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
D
E
L
%
5
7
N
ON
ON
ON
O N
O
D
E
L
%
0
5
N
ON
ON
ON
O N
O
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
D
E
L
%
5
2
N
ON
ON
ON
O N
O
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
G
N
I
H
S
A
L
F
After fixing the fault,
pushing the test
button resets the
UPS, clearing the
fault from the panel.
If the problem is fixed,
the code is cleared
from the panel. If not,
the fault code reap-
pears (Figure 3.3).
1
Sec
1
Sec
1
Sec