104
OCH668G
Measure the resistance between the terminals with a multimeter.
(At the ambient temperature 20°C)
Solenoid valve coil
<4-way valve>
(21S4)
Normal
1725 ± 172.5
"
Abnormal
Open or short
Parts name
Checkpoints
Disconnect the connector then measure the resistance with a multimeter.
(At the ambient temperature 10 to 30°C)
Thermistor (TH3)
<Outdoor liquid pipe>
Thermistor (TH4)
<Compressor>
Thermistor (TH6)
<Suction pipe>
Thermistor (TH7)
<Ambient>
Thermistor (TH8)
<Heat sink>
Normal
160 to 410 k
"
4.3 to 9.6 k
"
39 to 105 k
"
TH4
TH2
TH3
TH6
TH7
TH8
Abnormal
Open or short
Motor for compressor
(MC)
Measure the resistance between the terminals with a multimeter.
(At the ambient temperature 20°C)
Normal
1182.5 ± 83
"
Abnormal
Open or short
Solenoid valve coil
<Bypass valve>
(SV1)
Fan motor (MF1)
Measure the resistance between the terminals with a multimeter.
(Winding temperature 20°C)
W
V
U
Normal
0.44 ± 0.022 Ω
Abnormal
Open or short
PUMY-SP•VKM PUMY-SP•YKM
0.88 ± 0.044 Ω
Normal
Red - White
Red - Orange
Red - Yellow
Red - Blue
Abnormal
46 ± 4
"
Open or short
Thermistor (TH2)
<HIC pipe>
1
2
3
4
5
M
RD
BU
OG
YE
WH
Linear expansion Valve
(LEV-B)
1.1 ± 0.05 M
"
40 ± 4 k
"
220 ± 22 k
"
Open
Normal
Red - Blue
Brown - Blue
Orange - Blue
White - Blue
Abnormal
RD
BU
BN
OG
WH
Measure the resistance between the connector pins with a multimeter.
(At the ambient temperature 20°C)
M
1
2
3
4
5
6
7
Open or short
(Short, for White - Blue)
1
2
3
4
5
M
GY
OG
RD
YE
BK
Linear expansion Valve
(LEV-A)
Normal
Gray - Black
Gray - Red
Gray - Yellow
Gray - Orange
Abnormal
46 ± 3
"
Open or short
8-5. HOW TO CHECK THE PARTS