14
MSZ-A18YV -
MSZ-A24YV -
MSZ-A26YV -
E1
E1
E1
Part name
Figure
Check method and criterion
Indoor fan motor(MF)
MSZ-A18YV
INNER FUSE
145
:
CUT OFF
MSZ-A24/A26YV
INNER
PROTECTOR
135
i
5
:
OPEN
86
i
15
:
CLOSE
Color of
lead wire
WHT – BLK
BLK – RED
Abnormal
Open or
short-circuit
MSZ-A18YV
282
"
~ 305
"
141
"
~ 152
"
Measure the resistance with a tester.
(Part temperature 10˚C ~ 30˚C)
Normal
8 k
"
~ 20 k
"
Abnormal
Open or short-circuit
Room temperature
thermistor(RT11)
Indoor coil thermistor
(RT12(main), RT13(sub))
Horizontal vane
motor(MV1)
Vertical vane
motor(MV2)
Mo
to
r
p
a
rt
Se
n
so
r
p
a
rt
Measure the resistance between the terminals with a tester.
(Part temperature 10˚C ~ 30˚C)
Color of lead wire
BRN – YLW
YLW – GRY
Abnormal
Remain 0V or 5V
Normal
4.5 ~ 5.5V
Measure the voltage power ON.
(When fan revolved one time)
0V
➔
5V
➔
0V
(Approx.)
Normal
282
"
~ 306
"
Abnormal
Open or short-circuit
Measure the resistance between the terminal with a tester.
(Part temperature 10
°
C ~ 30
°
C)
BL
K
R
ED
W
HT
G
R
Y
YL
W
BR
N
MAIN
AUX
FUSE
B
LK
R
E
D
W
H
T
G
R
Y
Y
L
W
B
R
N
MSZ-A24/A26YV
132
"
~ 144
"
152
"
~ 166
"
Normal
MSZ-A18YV
MSZ-A24/A26YV
YLW
GRN
ORN
BRN
RED
ROTOR
MAIN
AUX.
P
:INNER PROTECTOR
P
2. Trouble criterion of main parts
OB345A
