Service manual
22
10
TROUBLESHOOTING
10-1. HOW TO CHECK THE PARTS
PLFY-P08NCMU-E.TH PLFY-P12NCMU-E.TH PLFY-P15NCMU-E.TH
PLFY-P08NCMU-E
1.TH PLFY-P12NCMU-E1.TH PLFY-P15NCMU-E1.TH
PLFY-P08NCMU-ER2.TH PLFY-P12NCMU-ER2.TH PLFY-P15NCMU-ER2.TH
Parts name Check points
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 50F~86F)
Disconnect the connector then measure the resistance valve with a tester.
Measure the resistance between the terminals with a tester.
(At the ambient temperature 68F~86F)
Measure the resistance between the terminals with a tester.
(At the ambient temperature 68F~86F)
Measure the resistance after 3 minutes have passed since the power supply was intercepted.
(At the ambient temperature 32F~140F)
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.
Thermistor (TH21)
(Room temperature
detection)
Thermistor (TH22)
(Pipe temperature
detection/ Liquid)
Thermistor (TH23)
(Pipe temperature
detection/ Gas)
1
3
Yellow
Relay
connector
Yellow
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%
White-Red Yellow-Brown Orange-Red Blue-Brown
NormalConnector Abnormal
300 Open or short
Normal Abnormal
290 Open or short
Orange
Red
White
Blue
Brown
Yellow
M
Orange
Red
White
Red — Yellow
Red — Blue
Red — Orange
Red — White
Blue
Yellow
Fan motor (MF)
M
Refer to the next
page for the details.
BLK RED ORNYLW
BLU
BRN
WHT
P
Measure the resistance between the terminals with a tester.
(Coil wiring temperature 50F~86F)
Normal
WHT-BLK
BLK-BLU
BLU-YLW
YLW-RED
RED-BRN
303~328
105~114
39~42
235~254
272~295
79~85
37~40
191~206
PLFY-P08NCMU-E
(1)
PLFY-P08NCMU-ER2
387~418
77~83
19~21
179~193
Abnormal
Opened or
short-circuited
# : Thermal fuse 284°
F±36F
PLFY-P12NCMU-E(1)
PLFY-P12NCMU-ER2
PLFY-P15NCMU-E(1)
PLFY-P15NCMU-ER2