Mitsubishi Electronics PDFY-P12NMU-E Air Conditioner User Manual


 
13
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.
(Sorrounding temperature 10˚C~30˚C[50˚F~86˚F])
Disconnect the connector and measure the resistance using a tester.
Measure the resistance between the terminals using a tester. (at 20˚C[68˚F])
20˚C[68˚F])
Disconnect the connector then measure the resistance valve using a tester.
Refer to the next page for a detail.
(Refer to the thermistor)
Normal
4.3k
~9.6k
Abnormal
Open or short
CNT(1)-(3)
Normal
App.45
CN3T(1)-(3)
App.1
Abnormal
Open or short
Motor terminal
or
Relay connector
Normal
Abnormal
Orange-Gray
Gray-Orange
Orange-Black
Black-Blue
Blue-Yellow
Yellow-Red
43.1
10,16 24~32
Open or short
Brack-Gray
53.6
40.5
48.8
23.5
40 48
4.79
6.78
13.77
29.8
16.45
8.30
1.454
7.94
21.9
Normal
(1)-(5)
White-Red
150
±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
1
2
2
4
4
Orange
Black
Gray
Relay connector
Protector
1
2
3
4
5
6
LEV
White
Yellow
Orange
Blue
Red
Brown
CN60
Parts name Check points
4
1
4
4
2
2
1
Black
Blue
Red
Gray
Yellow
Yellow
Yellow
Gray
Orange
White
Relay connector
Protector
Gray
C
PDFY
P06~30NMU-E
PDFY
P36·48NMU-E
Motor terminal
or
Relay connector
Normal
Abnormal
Open or short
Measure the resistance between the terminals using a tester.
(at
7 TROUBLE SHOOTING
7-1. How to check the parts