Service manual
24
Measure the resistance between the terminals with a tester.
(Coil wiring temperature10°C ~ 30°C)
Compressor
Room
temperature
thermistor
2. Trouble criterion of main parts
Part name
Indoor coil
thermistor
Indoor fan
motor
Motor part
Sensor 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
~
BLK
R
MAIN
AUX
RED
S
C
WHT
Normal
8k½ ~ 20k½
Abnormal
Opened or short-circuited
Normal
0.90½ ~ 1.11½
1.79½ ~ 2.20½
C-R
C-S
Normal
Abnormal
Opened or
short-circuited
176 ~ 192½
240 ~ 261½
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
102 ~ 126½
97.9 ~ 120½
WHT-BLK
BLK-RED
Normal
Abnormal
Opened or short-circuited
358 ~ 388½
Abnormal
Opened or
short-circuited
MAIN
AUX
BLK
RED
WHTORN
P
MSH-18NV -
E4
YLW
RED
BLU
ORN
PNK
ROTOR
INNER PROTECTOR
P
MAIN
AUX
FUSE
BLK
RED
WHT
GRY
YLW
BRN
Defrost
thermistor
Measure the resistance with a tester.
(Part temperature –10°C ~ 40°C)
Normal
5k½ ~ 60k½
Abnormal
Opened or short-circuited