Service manual

19
8
TROUBLE SHOOTING
8-1. How to check the parts
PMFY-P06NBMU-E
PMFY-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P15NBMU-E
Parts name Check points
Disconnect the connector then measure the resistance using a tester.
(Surrounding temperature 50°F~86°F)
Disconnect the connector then measure the resistance using a tester.
Measure the resistance between the terminals using a tester.
(Surrounding temperature 68°F~86°F)
Measure the resistance between the terminals using a tester.
(Surrounding temperature 68°F)
Measure the resistance after 3 minutes have passed since the power supply was turned off.
(Surrounding temperature 32°F~140°F
Vane motor
Linear expansion
valve
Drain pump
Drain sensor
Refer to the next page for the details.
Refer to the next page for the details.
Refer to the next
page for the details.
Thermistor (TH21)
<Room temperature
detection>
Thermistor (TH22)
<Liquid pipe temperature
detection>
Thermistor (TH23)
<Gas pipe temperature
detection>
1
2
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
150k" i10%
White-Red Yellow-Brown Orange-Red Blue-Brown
NormalConnector Abnormal
380" i7% 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
OC341--1new.qxp 05.6.1 5:16 PM Page 19