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Measure the resistance between the terminals with a tester.
(Coil wiring temperature10°C ~ 30°C)
Compressor
Room
temperature
thermistor
10-2-2 Trouble criterion of main parts
Part name
Indoor coil
thermistor
Indoor fan
motor
Motor partSensor part
Outdoor fan
motor
Vane motor
Check method and criterion
Measure the resistance with a tester.
(Part temperature 10°C ~ 30°C)
Measure the resistance between the terminals with a tester.
(Coil wiring temperature –10°C ~ 40°C)
Measure the voltage Power ON.
Measure the resistance between the terminals with a tester.
(Coil wiring temperature –10°C ~ 40°C)
Measure the resistance between the terminals with a tester.
(Part temperature10°C ~ 30°C)
Figure
P
R
C
S
RED
BLK
WHT
MAINAUX.
07NV
09NV
Normal
8kΩ ~ 20kΩ
Abnormal
Opened or short-circuited
Normal
07NV
3.67~4.50Ω
5.07~6.20Ω
2.88~3.52Ω
1.85~2.28Ω
3.44~4.21Ω
1.05~1.30Ω
2.38~2.91Ω
09NV
12NV 18NV
0.85~1.04Ω
1.83~2.23Ω
24NV
C-R
C-S
Normal
Abnormal
Opened or
short-circuited
18/24NV
280 ~ 303Ω
176 ~ 192Ω
240 ~ 261Ω
WHT-BLK
BLK-RED
BRN-YLW
YLW-GRY
Normal
4.5 ~ 5.5V
Abnormal
Remain 0V or 5V
(When fan revolved one time)
0V➔5V➔0V
(Approx.)
Normal
Abnormal
Opened or
short-circuited
07/09NV
192~236Ω
373~458Ω
–
–
114 ~ 141Ω
118 ~ 146Ω
–
–
12NV
102 ~ 126Ω
97.9 ~ 120Ω
–
–
18NV
55.3 ~ 67.6Ω
–
26.6 ~ 32.6Ω
55.5 ~ 67.8Ω
24NV
WHT-BLK
BLK-RED
BLK-YLW
YLW-RED
Normal
Abnormal
Opened or short-circuited
07/09/12NV 282 ~ 305Ω
18/24NV 358 ~ 388Ω
07/09/12NV
Abnormal
Opened or
short-circuited
ORNWHT
RED
BLK
MAIN
AUX.
P
WHTREDBLK
MAIN
AUX.
P
P
C
REDORNWHT
YLW
BLK
MAIN
AUX.1AUX.2
313 ~ 336Ω
5.13~6.28Ω
MSH-07NV- MSH-09NV- MSH-12NV-
MSH-18NV- MSH-24NV-
MSH-07NV- MSH-09NV- MSH-12NV-
MSH-18NV- MSH-24NV- MSH-18NV-
E3E2E2
E2E2E2
E1E1
E1E1E1
Vane motor
ORN
BLUYLW
INNER PROTECTOR
RED
PNK
ROTOR
P
FUSE
WHTREDBLK
MAIN
AUX.
12NV
18NV
24NV
Defrost
thermistor
Measure the resistance with a tester.
(Part temperature –10°C ~ 40°C)
Normal
5kΩ ~ 60kΩ
Abnormal
Opened or short-circuited
OB207t-2qxp 25/9/97 8:56 PM Page 50