Mitsubishi MSC-GA20VB Service Manual download pdf (Page 25)

MSC-GE20VB MS-GE50VB

MSC-GE25VB MSH-GE50VB

MSC-GE35VB

10-4. TROUBLE CRITERION OF MAIN PARTS

Part name FigureCheck method and criterion

Indoor fan motor (MF)

MSC-GE20/25/35VB

INNER FUSE

145°C CUT OFF

MS-GE50VB

MSH-GE50VB

INNER FUSE

140°C CUT OFF

Color of

lead wire

WHT – BLK

BLK – RED

MSC-GE35VB

215 Ω ~ 233 Ω

305 Ω ~ 331 Ω

Room temperature

thermistor (RT11)

Indoor coil thermistor

(RT12)

Vane motor (MV)

Horizontal vane

motor (MV1)

Vertical vane

motor (MV2)

Motor part

Sensor part

Measure the resistance between the terminals with a tester.

(Part temperature 10°C ~ 30°C)

Color of lead wire

BRN – YLW

YLW – GRY

Normal

4.5 ~ 5.5V

Measure the voltage power ON.

(When fan revolved one time)

0V 5V 0V

(Approx.)

MS-GE50VB

MSH-GE50VB

283 Ω ~ 306 Ω

Normal

240 Ω ~ 260 Ω

MSC-GE20/25/35VB

Measure the resistance between the terminal with a tester.

(Part temperature 10°C ~ 30°C)

MAIN

AUX

FUSE

BLK

RED

WHT

GRY

YLW

BRN

MSC-GE20/25VB

271 Ω ~ 295 Ω

180 Ω ~ 196 Ω

MS-GE50VB

MSH-GE50VB

284 Ω ~ 307 Ω

142 Ω ~ 154 Ω

Normal

MS-GE50VB

MSH-GE50VB

MSC-GE20/25/35VB

Measure the resistance with a tester.

(Part temperature 10°C ~ 30°C)

Refer to 10-6. "Test point diagram and voltage",

"Indoor electronic control P.C. board", for the chart of thermistor.

RED

BLK

YLW

FUSE

GRY

BRN

WHT

YLW

GRNORN

BRN

RED

ROTOR

OBH529A

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Mitsubishi MSC-GA20VB Service Manual Page 25

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