15
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
Part name
Figure
Check method and criterion
Indoor fan motor(MF)
MSH-GA50/GA60VB
INNER FUSE
145
:
CUT OFF
MSH-GA80VB
INNER
PROTECTOR
135
i
5
:
OPEN
Color of
lead wire
WHT – BLK
BLK – RED
MSH-GA50/GA60VB
282
"
~ 305
"
141
"
~ 152
"
Room temperature
thermistor(RT11)
Indoor coil thermistor
(RT12(main), RT13(sub))
Horizontal vane
motor(MV1)
Vertical vane
motor(MV2)
Motor par
t
Sensor par
t
Measure the resistance between the terminals with a tester.
(Part temperature 10˚C ~ 30˚C)
Color of lead wire
BRN – YLW
YLW – GRY
Normal
4.5 ~ 5.5V
Measure the voltage power ON.
(When fan revolved one time)
0V
➔
5V
➔
0V
(Approx.)
Normal
282
"
~ 306
"
Measure the resistance between the terminal with a tester.
(Part temperature 10
°
C ~ 30
°
C)
BLK
RED
WHT
GR
Y
YL
W
BRN
MAIN
AUX
FUSE
BLK
RED
WHT
GR
Y
YL
W
BRN
MSH-GA80VB
132
"
~ 144
"
152
"
~ 166
"
Normal
MSH-GA50/GA60VB
MSH-GA80VB
Measure the resistance with a tester.
(Part temperature 10˚C ~ 30˚C)
Refer to 9-6."Test point diagram and voltage",
"Indoor electronic control P.C. board", for the chart of thermistor.
YLW
GRN
ORN
BRN
RED
ROTOR
MAIN
AUX.
P
:INNER PROTECTOR
P
9-4. Trouble criterion of main parts
OB367D-1.qxp 12.1.13 7:49 AM Page 15
OB367D