13
7
TROUBLE SHOOTING
7-1. How to check the parts
Outdoor air temperature
thermistor
(TH24)
Liquid pipe thermistor
(TH22)
Gas pipe thermistor
(TH23)
Trans
Fan motor
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])
Measure the resistance between the terminals using
a tester.
Disconnect the connector then measure the resistance valve using a tester.
Drain Pump
(Drain water lift up kit)
Drain sensor
(Drain water lift up kit)
Disconnect the connector then measure the resistance
valve using a tester.
(Sorrounding temperature 20
°
C~30
°
C[68
°
F~86
°
F])
(Refer to the thermistor characteristic graph)
Normal
4.3k
Ω
~9.6k
Ω
Abnormal
Open or short
CNT(1)-(3)
Normal
App.15
Ω
CN3T(1)-(3)
App.4
Ω
Abnormal
Open or short
Motor terminal
or
Relay connector
Normal
Abnormal
Gray-Orange
Open or short
Gray-Black
Gray-Brown
Gray-Red
Normal
(1)-(5)
White-Red
150
Ω
±
10%
Abnormal
Open or short
(2)-(6)
Yellow-Brown
(3)-(5)
Orange-Red
(4)-(6)
Blue-Brown
CNT
3T
1
3
CN3T
Protector
Relay connector
4
1
8
9
2
5
3
6
Brown
Red
Orange
Orange
White
Gray
Black
Yellow
1
3
Red
Red
1
2
3
4
5
6
LEV
White
Yellow
Orange
Blue
Red
Brown
CN60
Parts name
Check points
PEFY-P30
·
54
PEFY-P72
·
96
Measure the resistance between the terminals using a tester. (at 20˚C[68
°
F])
Normal
399
Ω
Abnormal
Open or short
(Refer to the thermistor characteristic graph)
<Thermistor characteristic graph>
Room temperature thermistor(TH21)
Liquid pipe thermistor(TH22)
Gas pipe temperature thermistor(TH23)
Drain sensor(DS)
Thermistor R
0
=15k
Ω ±
3%
Fixed number of B=3480k
Ω ±
2%
Rt=15exp { 3480( ) }
0˚C 15k
Ω
10˚C 9.6k
Ω
20˚C 6.3k
Ω
25˚C 5.2k
Ω
30˚C 4.3k
Ω
40˚C
32˚F
50˚F
68˚F
77˚F
86˚F
104˚F 3.0k
Ω
0
10
20
30
40
50
-20 -10 0 10 20 30 40 50
Temperature
(˚C)
-4 14 32 50 68 86 104 122
[˚F]
Resistance (K
Ω
)
1
273+t
1
273
89.8
Ω
115.2
Ω
148.1
Ω
76.4
Ω
22.8
Ω
27.4
Ω
32.8
Ω
67.9
Ω
PEFY-P80
PEFY-P140
Motor terminal
or
Relay connector
Normal
Abnormal
Open or short
19.18
Ω
19.18
Ω
23.98
Ω
19.18
Ω
17.8
Ω
17.8
Ω
17.8
Ω
22.62
Ω
23.98
Ω
22.62
Ω
23.98
Ω
22.62
Ω
PEFY-P72
PEFY-P96
Red-White
White-Black
Red-Black
Brown-Gray
Gray-Yellow
Brown-Yellow
0˚C
[32
°
F]
/6.0k
Ω,
10˚C
[50
°
F]
/3.9k
Ω
20˚C
[68
°
F]
/2.6k
Ω,
25˚C
[77
°
F]
/2.2k
Ω
30˚C
[86
°
F]
/1.8k
Ω,
40˚C
[104
°
F]
/1.3k
Ω
1
3
Protector
Relay connector
1
2
3
4
5
6
7
8
9
Gray
Black
Orange
Brown
Red
Red
