6
6
.
.
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
A
A
S
S
-
-
1
1
8
8
U
U
R
R
4
4
S
S
T
T
V
V
U
U
H
H
1
1
20
5
IPM module protection
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 4-way valve changeover
abnormal
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
Summary of Contents for AS-18UR4STVUH1
Page 1: ...AS 18UR4STVUH1...
