Mitsubishi Electronics MSZ-FD25VAS, MSZ-FD35VAS Trouble Criterion of Main Parts

10-5. TROUBLE CRITERION OF MAIN PARTS

MSZ-FD25VA MSZ-FD25VAS MSZ-FD35VA MSZ-FD35VAS

Part name

Room temperature thermistor(RT11)

Indoor coil thermistor (RT12, RT13)

Indoor fan motor(MF)

Horizontal vane motor(MV1)

Vertical vane motor(MV2)

i-see Sensor motor(MT)

Check 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.

Check 10-6. A.

Measure the resistance between the terminals with a tester. (Part temperature 10 ~ 30 ° C)

Color of the lead wire	Normal
BRN-other one	336 " ~ 364 "

Measure the resistance between the terminals with a tester. (Part temperature 10 ~ 30 ° C)

Color of the lead wire	Normal
BRN-other one	282 " ~ 306 "

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)

i-see Sensor

Figure

RED

ROTOR

YLW

BRN

ORN GRN

RED

ROTOR

YLW

BRN

ORN GRN

4

3

2(GND)

1

i-see Sensor(RR)	i-see Sensor P.C. board
	connector

Black vinyl tape

i-see Sensor	Normal range
connector terminals

2(GND) - 4(+) 1.874 ~ 3.387 VDC

1(+) - 2(GND) 1.010 ~ 1.420 VDC NOTE: Pay attention to static electricity.

wCover the i-see Sensor with black vinyl tape.

PLASMA electrode unit Check 10-6. F

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