30
Orange
Red
White
Blue
Brown
Yellow
M
9
TROUBLESHOOTING
9-1. HOW TO CHECK
PKFY-P06NAMU-E
PKFY-P08NAMU-E
Room temperature
thermistor(TH21)
Liquid pipe temperature
thermistor(TH22)
Gas pipe temperature
thermistor(TH23)
Vane motor (MV)
Fan motor (MF)
Disconnect the connector, then measure the resistance using a tester.
(Surrounding temperature 50
˚
F~86
˚
F)
Part Name
Check points
1
Measure the resistance between the terminals using a tester.(Surrounding temperature 68
˚
F.)
Normal
Abnormal
White-Black
195
'
Open or short
Red-Black
Normal
Abnormal
!
At first, check if the electrical pressure is 12V between the
brown wire(GND) and yellow wire(VCC).
@
Slowly start running the fan. It is normal if while the fan rotate once,
the electrical pressure change from 0V to12V then go back to 0V.
If the electrical pressure stay at around 0V or 10V, it means the fan
motor has the defects.
200
'
Normal
Red-Pink
400
'
± 7%
Abnormal
Open or short
Red-Blue
Red-Orange Red-Yellow
Fuse
293
4°F
White
Red
Black
Brown
Gray Yellow
CN34
1
4
6
3
2
1
FAN
Linear expansion
valve (LEV)
Disconnect the connector then measure the resistance of valve using a tester.
(Coil temperature 68
˚
F)
Normal
White-Red
150
'
±10%
Abnormal
Open or short
Yellow-Brown Orange-Red Blue-Brown
2
Without disassembling the parts, measure the electrical pressure of the gray wire(Signal line) and
brown wire (GND) while the power is on.
1
Measure the resistance between the terminals using a tester.(Surrounding temperature 77
˚
F.)
Normal
4.3k
'
~9.6k
'
Abnormal
Open or short
Blue
Yellow
Red
Orange
Pink
M