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8
TROUBLESHOOTING
8-1. HOW TO CHECK THE PARTS
PKFY-P15VBM-E
PKFY-P15VBM-ER2
PKFY-P15VBM-ER3
PKFY-P15VBM-ER4
PKFY-P15VBM-ER5
Parts name
Room temperature
Disconnect the connector then measure the resistance with a tester.
detection thermistor
(At the ambient temperature 10 to 30:)
(TH21)
Pipe temperature
detection thermistor/liquid
(TH22)
Pipe temperature
detection thermistor/gas
(TH23)
Vane motor (MV)
Measure the resistance between the terminals with a tester. (At the ambient temperature 25:)
4
Orange
M
Pink or
2
White
Red-Pink or White
1
Red
Yellow Blue
Connect pin No.
5
3
Fan motor (MF)
Measure the resistance between the terminals with a tester. (At the ambient temperature 20:)
FAN
1
White
Red
4
Black
6
Linear expansion
Disconnect the connector then measure the resistance valve with a tester.
valve (LEV)
(Coil temperature 20:)
CN60
White
1
Yellow
2
Orange
3
LEV
White-Red
Blue
4
Red
5
Brown
6
OCH418E
PKFY-P20VBM-E
PKFY-P20VBM-ER1
PKFY-P20VBM-ER2
PKFY-P20VBM-ER3
PKFY-P20VBM-ER4
PKFY-P20VBM-ER5
Normal
Abnormal
4.3 to 9.6k"
Open or short
Normal
Normal
1-2
1-3
1-4
Red-Blue
Red-Orange
400 " 7%
Normal
White-Black
286"
Red-Black
200"
Normal
(1)-(5)
(2)-(6)
(3)-(5)
Yellow-Brown
Orange-Red
200 " 10%
Check points
Refer to "8-1-1. Thermistor".
Abnormal
1-5
Red-Yellow
Open or short
Abnormal
Open or short
Abnormal
(4)-(6)
Blue-Brown
Open or short
19
PKFY-P25VBM-E
PKFY-P25VBM-ER1
PKFY-P25VBM-ER2
PKFY-P25VBM-ER3
PKFY-P25VBM-ER4
PKFY-P25VBM-ER5
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