Service manual

22
8
TROUBLE SHOOTING
8-1. HOW TO CHECK THE PARTS
PMFY-P20VBM-E PMFY-P25VBM-E PMFY-P32VBM-E PMFY-P40VBM-E
PMFY-P20VBM-E
1 PMFY-P25VBM-E1 PMFY-P32VBM-E1 PMFY-P40VBM-E1
PMFY-P20VBM-E#2 PMFY-P25VBM-E#2 PMFY-P32VBM-E#2 PMFY-P40VBM-E#2
PMFY-P20VBM-ER3 PMFY-P25VBM-ER3 PMFY-P32VBM-ER3 PMFY-P40VBM-ER3
PMFY-P20VBM-ER4 PMFY-P25VBM-ER4 PMFY-P32VBM-ER4 PMFY-P40VBM-ER4
Parts name Check points
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 10 - 30)
Disconnect the connector then measure the resistance valve with a tester.
Refer to the next page for a detail.
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20 - 30)
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20)
Measure the resistance after 3 minutes have passed since the power supply was intercepted.
(At the ambient temperature 0 - 60)
Vane motor (MV)
Linear expansion
valve(LEV)
Drain pump (DP)
Drain sensor (DS)
Refer to the next page for the details.
Refer to the next page for the details.
Refer to the next
page for the details.
Room temperature
thermistor (TH21)
Liquid pipe temperature
thermistor (TH22)
Gas pipe temperature
thermistor (TH23)
1
3
Blue
Blue
1
2
3
Normal
4.3k~9.6k
Abnormal
Open or short
Abnormal
Open or short
Normal
0.6k~6.0k
Abnormal
Open or short
Normal
200 $10%
(1)-(5)
White-Red
(2)-(6)
Yellow-Brown
(3)-(5)
Orange-Red
(4)-(6)
Blue-Brown
NormalConnector Abnormal
380 $7% Open or short
Normal Abnormal
400~480 Open or short
Orange
Red
White
Blue
Brown
Yellow






MV
M
Orange
Red
Brown
Brown — Yellow
Brown — Red
Brown — Orange
Brown — Green
Green
Yellow




OC307E