4
6
2
3
1
2
3
4
5
6
5
1
M
Blue
Brown
Yellow
Orange
Red
White
Parts name
Check points
Disconnect the connector then measure the resistance using a tester.
(Surrounding temperature 10:~30:)
Disconnect the connector then measure the resistance using a tester.
(
Winding temperature 20
:)
Outdoor pipe <liquid>
temperature
thermistor (TH3)
Discharge temperature
thermistor (TH4)
Outdoor condenser/
evaporator temperature
thermistor (TH6)
Outdoor outside
temperature
thermistor (TH7)
Heat sink
temperature
thermistor (TH8)
Normal
160k"~410k"
4.3k"~9.6k"
39k"~105k"
TH4
TH3
TH6
TH7
TH8
Abnormal
Open or short
Normal
(1) - (6)
Red - White
(1) - (4)
Red - Orange
(2) - (5)
Brown - Yellow
(2) - (3)
Brown - Blue
Abnormal
46±4"
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20
:
)
4-Way valve
solenoid coil
(21S4)
Pin number of relay
connector is different
from that motor
connector
Compressor
(MC)
Linear expansion
valve (LEV-A/LEV-B)
Normal
Abnormal
Open or short
PUHZ-RP3VHA PUHZ-RP4, 5, 6VHA
Open or short
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20
:
)
Normal
1197±10"
Abnormal
Open or short
Bypass valve
solenoid coil
(SV)
Measure the resistance between the terminals using a tester.
(Winding temperature 20
:
)
Fan motor(MF1,MF1)
Normal
15.1±0.5"
2350±170" 1370±100"
PUHZ-RP3VHA PUHZ-RP4, 5, 6VHA
0.865"~0.895" 0.266"
Measure the resistance between the terminals using a tester.
(Winding temperature 20
:
)
Normal
Abnormal
Open or short
Relay connector
Abnormal
Open or short
Red — Black
Black — White
White — Red
Red
W
V
U
W
V
U
White
Black
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