Mitsubishi MSZ-HC35VA Service Manual download pdf (Page 30)

11-4. TROUBLE CRITERION OF MAIN PARTS

MUZ-HC25VA MUZ-HC35VA MUZ-HC35VAB

Part name Check method and criterion Figure

Defrost thermistor

(RT61)

Measure the resistance with a tester.

Refer to 11-6. “Test point diagram and voltage”, 1. “Inverter P.C.

board”, the chart of thermistor.

Discharge temperature

thermistor (RT62)

Fin temperature thermistor

(RT64)

Measure the resistance with a tester.

Before measurement, hold the thermistor with your hands to warm it

up.

Refer to 11-6. “Test point diagram and voltage”, 1. “Inverter P.C.

board”, the chart of thermistor.

Compressor (MC)

Measure the resistance between the terminals with a tester.

(Part temperature -10 – 40°C)

Normal

U-V

U-W

V-W

MUZ-HC25 MUZ-HC35

1.65 – 2.03 Ω 1.49 – 1.84 Ω

Outdoor fan motor (MF)

INNER FUSE

RA6V21-AB

152

-5

°C CUT OFF

RA6V21-BB

126 ± 2: CUT OFF

Measure the resistance between the terminals with a tester.

(Part temperature -10 – 40°C)

Color of lead wire

Normal

RA6V21-AB RA6V21-BB, BD

WHT – BLK 305 – 374 Ω 222 – 272 Ω

BLK – RED 247 – 304 Ω 245 – 300 Ω

R.V. coil (21S4)

Measure the resistance between the terminals with a tester.

(Part temperature -10˚C – 40°C)

Normal

1.32 – 1.62 kΩ

Expansion valve coil (LEV)

HC35VA-

HC35VAB-

Measure the resistance using a tester.

(Part temperature: -10 – 40°C)

Color of lead wire Normal

WHT – RED

38 – 50 Ω

RED – ORN

YLW – BRN

BRN – BLU

WHT

RED

BLK

FUSE

WHT

RED BLK

LEV

WHT

RED

ORN

YLW

BRN

BLU

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Mitsubishi MSZ-HC35VA Service Manual Page 30

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