Mitsubishi Electric PCA-A24GA Service Manual page 22

10-5. HOW TO CHECK THE PARTS
PCA-A24GA PCA-A30GA
PCA-A24GA PCA-A30GA
1
Parts name
Room temperature Disconnect the connector then measure the resistance using a tester.
thermistor (TH1)
(At the ambient temperature 10:(50˚F)~30:(86˚F))
Pipe temperature
thermistor (TH2)
Condenser/evaporator
temperature thermistor
(TH5)
Fan motor (MF) Measure the resistance between the terminals using a tester.
Relay connector
(Winding temperature 20:(68˚F))
1
Red 1
White
2
2
3
Black
3
Protector
OFF : 130i 5:
ON : 80i 20:
Vane motor (MV)
4
Orange
5 M
Red
2
Pink
Yellow Brown Blue
3 6 1
4
Pink
M
2
Orange
5 Red
Yellow Blue
3 1
PCA-A36GA
PCA-A36GA
1
Normal
4.3k"~9.6k" Open or short
Motor terminal
or
PCA-A24GA
Relay connector
PCA-A30GA
Red–Black 60.8"
White–Black
55.1"
Normal
Connector
PCA-A24·30GA
Brown–Yellow
Brown–Blue
140~160"
Red–Orange
Red–Pink
Normal
Connector
PCA-A36·42GA
Red–Yellow
Red–Blue
140~160"
Red–Blue
Red–Pink
PCA-A42GA
PCA-A42GA
1
Check points
Abnormal
(Refer to the next pege for a detail.)
Normal
PCA-A36GA
(1)
PCA-A42GA
(1)
41.1"
54.3"
Abnormal
(1)
Open or short
Abnormal
(1)
Open or short
22
1
Abnormal
(1)
(1)
Open or short