Service manual
Part name FigureCheck method and criterion
Measure the resistance with a tester.
Refer to 10-7. "Test point diagram and voltage", "Indoor electronic control
P.C. board", the chart of thermistor.
Room temperature
thermistor(RT11)
Indoor coil thermistor
(RT12, RT13)
Normal
Measure the resistance between the terminals with a tester.
(Part temperature 10 ~ 30 °C)
313 ~ 375 "
Color of the lead wire
Horizontal vane motor(MV1)
BRN-other one
268 ~ 322 "
Vertical vane motor(MV2)
223 ~ 268 "
i-see Sensor motor(MT)
Horizontal vane
motor(MV1)
Vertical vane
motor(MV2)
i-see Sensor
motor(MT)
i-see Sensor(RR)
Cover the i-see Sensor with black vinyl tape. Then, turn ON the power
supply. (i-see Sensor is energized.) Measure the voltage between
connector terminals of i-see Sensor with a tester.
(Part temperature 10 ~ 40 °C)
Normal range
2(GND)
-
4(+)
1(+)
-
2(GND)
1.874 ~ 3.387 VDC
1.010 ~ 1.420 VDC
i-see Sensor
connector terminals
NOTE: Pay attention to static electricity.
Indoor fan motor(MF)
Check 10-6. A.
PLASMA electrode unit
Check 10-6. F
RED
YLW
BRN
ORN
GRN
ROTOR
27
10-5. TROUBLE CRITERION OF MAIN PARTS
MSZ-FD25VA MSZ-FD25VAS MSZ-FD35VA MSZ-FD35VAS
Cover the i-see
Sensor with
black vinyl tape.
i-see Sensor
i-see Sensor P.C. board
Black vinyl tape
connector
w
4
3
2(GND)
1
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