Mitsubishi MS09NW Service Manual page 33

MS09NW, MS12NN, MS15NN, MS17NN
11-2-2 Trouble criterion of main parts
Part name
Room
Measure the resistance with a tester.
temperature
(Part temperature 50°F ~ 86°F)
thermistor
Indoor coil
thermistor
Measure the resistance between the terminals with a tester.
(Coil wiring temperature14°F ~ 104°F)
Compressor
Measure the resistance between the terminals with a tester.
(Coil wiring temperature50°F ~ 86°F)
Measure the voltage Power ON.
Indoor fan
motor
Measure the resistance between the terminals with a tester.
(Coil wiring temperature14°F ~ 104°F)
Outdoor fan
motor
Measure the resistance between the terminals with a tester.
(Part temperature 50°F ~ 86°F)
Vane motor
Check method and criterion
Normal
8kΩ ~ 20kΩ
09NW 12NN
Ω
C-R
0.8~1.1 1.9~2.4
Ω
C-S
1.9~2.4 2.7~3.4
WHT-BLK
BLK-RED
Normal
09NW
BRN-YLW 4.5 ~ 5.5V
(When fan revolved one time)
YLW-GRY
0V 5V 0V (Approx.)
12/15NN
Ω
WHT-BLK
67~73
Ω
BLK-YLW
9~9.8
Ω
YLW-BLU
4.9~5.5
Ω
BLU-BRN
5.8~6.4
Ω
BRN-RED
28~32
09NW
Ω
WHT-BLK
55~68
Ω
BLK-YLW
114~141
Normal
09NW
12/15/17NN
282 ~ 305Ω 358 ~ 387Ω
Abnormal
Opened or short-circuited
Normal
15NN 17NN
Ω
Ω Ω
1.4~1.8
1.4~1.9
Ω Ω Ω
2.4~3.0 2.3~2.9
Normal
09NW
76~83 Ω
70~76 Ω
Abnormal
Remain 0V or 5V
Normal
17NN
Ω
53~59
Ω
10~12
Ω
4.6~5.0
Ω
5.4~6.0
Ω
36~40
Normal
12/15/17NN
Ω
102~126
Ω
97~120
Abnormal
Opened or short-circuited
Abnormal
Opened or
short-circuited
Abnormal
Opened or
09NW
short-circuited
Abnormal
12/15/17 NN
YLW
BLU
Opened or
BRN
short-circuited
RED
09NW
RED
Abnormal
12/15/17 NN
Opened or
short-circuited
RED
ORN
Figure
WHITE
1
RED
2
BLK
3
YLW
1
GRY
2
BRN
3
BLK
F
WHT
ORN
BLK
P
WHT
BLK
P
WHT
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