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7
.
T
R
O
U
B
L
E
S
7
.
T
R
O
U
B
L
E
S
Error code 8
Over current protection
Switch off and start
up again, is it OK?
No
Yes
Replace
the
outdoor control
board, is it OK?
No
Check the refrigeration
system
H
O
O
T
I
N
G
H
O
O
T
I
N
G
Yes
Normal protection
Outdoor control board fault
A
D
M
A
D
M
Error code 9
Max. current protection
Is the operating
current beyond
peak 20A?
No
Replace
the
outdoor control
board, is it OK?
No
Check the compressor
31
-
2
4
U
X
4
S
G
K
A
-
2
4
U
X
4
S
G
K
A
Yes
Normal protection
Yes
Outdoor control
board fault
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