7
7
.
.
T
T
R
R
O
O
U
U
B
B
L
L
E
E
S
S
H
H
O
O
O
O
T
T
I
I
N
N
G
G
6 Over and under-voltage control
33 Room temperature sensor in
trouble
7 Communication trouble 34 Indoor coil temperature sensor in
trouble
8 Current overload control 36 Communication between the
indoor and outdoor in trouble
9 Maximum current control 39 Indoor fan motor operation
abnormal
10
Communication trouble(between
outdoor unit and driver unit)
40 Grid protection alarm (cabinet
type)
11 Outdoor EEPROM in trouble 41 Detecting failures by
zero-crossing
13 Compressor exhaust
temperature too high control
14 Outdoor ambient temperature
sensor in trouble
15 Compressor housing
temperature control
27
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