12
Room temparature
thermistor
(TH21)
Liquid pipe thermistor
(TH22)
Gas pipe thermistor
(TH23)
Transformer
Fan motor
Linear expansion
valve
Disconnect the connector, then measure the resistance using a tester.
(Surrounding temperature 10
°
C~30
°
C)
Disconnect the connector and measure the resistance using a tester.
Measure the resistance between the terminals using a tester.
(at 20°C)
Disconnect the connector then measure the resistance valve using a tester.
Refer to the next page for a detail.
Normal
4.3k
Ω
~9.6k
Ω
Abnormal
Open or short
CNT(1)-(3)
Normal
App.45
Ω
CN3T(1)-(3)
App.1
Ω
Abnormal
Open or short
Normal
(1)-(5)
White-Red
150
Ω
±
10%
Abnormal
Open or short
(2)-(6)
Yellow-Blown
(3)-(5)
Orange-Red
(4)-(6)
Blue-Brown
1
2
3
1
2
3
CNT
T
CN3T
Red
Blue
Blue
White
1
2
3
4
5
6
LEV
White
Yellow
Orange
Blue
Red
Brown
CN60
Parts name
Check points
1
Blue
Black
Red
White
Yellow
White
Relay connector
C
PFFY-P20~50
VLEM-A/VLRM-A
PFFY-P63
VLEM-A/VLRM-A
Motor terminal
or
Relay connector
Normal
Abnormal
Open or short
Measure the resistance between the terminals using a tester.
(at 20°C)
Motor terminal
or
Relay connector
Normal
Abnormal
Open or short
3
4
2
1
1
Blue
Black
Red
White
Yellow
White
Relay connector
Protector
C
3
4
2
1
Black - White
Red - Yellow
Yellow - Blue
Blue - Black
335.0
P20,P25
174.0
56.8
99.6
Black - White
Red - Yellow
Yellow - Blue
Blue - Black
112.0
P63
78.0
12.7
50.8
294.0
P32
150.0
52.0
78.0
114.0
P40
80.0
30.0
42.0
101.4
P50
60.3
15.1
29.4
(Refer to the thermistor characteristic graph
on next page.)
7 TROUBLE SHOOTING
7-1. How to check the parts
