12-4. Trouble criterion of main parts

Part name

 

 

 

 

Check method and criterion

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Defrost thermistor

Measure the resistance using a tester.

 

 

 

 

 

 

 

 

 

 

 

 

(Part temperature -10°C ~ 40°C)

 

 

 

 

 

 

 

 

 

 

 

 

Evaporation / Gas pipe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

temperature thermistor

 

 

 

Normal

 

 

 

 

 

abnormal

 

 

 

 

 

 

 

 

 

 

 

5kΩ ~ 55kΩ

 

 

 

Opened or short-circuited

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measure the resistance using a tester, after warming up the thermistor by holding by hand.

Discharge temperature

(Part temperature : 20°C ~40°C)

 

 

 

 

 

 

 

 

 

 

 

 

thermistor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal

 

 

 

 

 

abnormal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100kΩ ~ 250kΩ

 

 

 

Opened or short-circuited

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressor

Measure the resistance between terminals using a tester.

 

 

 

 

 

 

 

 

W

(Winding temperature : -10°C ~ 40°C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

 

 

 

 

 

 

 

Normal

 

 

 

 

 

abnormal

 

 

 

 

 

 

U

 

1Each phase 0.53Ω ~ 0.66Ω

 

 

 

Opened or short-circuited

 

WHT

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor fan motor

Measure the resistance between lead wires using a tester.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

(Part temperature : -10°C ~ 40°C)

 

 

 

 

 

 

 

 

 

 

 

 

P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

Normal

 

 

 

 

 

 

 

abnormal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU

 

WHT - BLK

 

 

69.0Ω ~ 86.0Ω

 

 

 

 

Opened or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YLW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK - YLW

 

 

23.0Ω ~ 30.0Ω

 

 

 

 

short-circuited

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

Protector specification

 

YLW - BLU

 

 

10.0Ω ~ 13.0Ω

 

 

 

 

(Not including

 

 

Short 95I15:￿

 

RED - BLK

 

 

73.0Ω ~ 91.0Ω

 

 

 

 

WHT - ORN)

 

 

Open

135I5:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measure the resistance using a tester. (Part temperature -10°C ~ 40°C)

 

 

 

 

R. V. coil

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal

 

 

 

 

 

abnormal

 

 

 

 

 

 

 

 

 

 

1640Ω ~ 2310Ω

 

 

 

Opened or short-circuited

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Linear expansion valve

Measure the resistance using a tester.(Part temperature -10°C ~ 40°C)

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lead wire color

 

Normal

 

 

 

 

 

 

Abnormal

 

 

RED

 

 

LEV

 

WHT - RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

RED - ORN

 

Ω

~ 52

Ω

 

Opened or short-circuited

 

 

 

 

 

 

 

 

YLW - BRN

 

43

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRN - BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YLW BRN BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measure the resistance using a tester.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Part temperature -10°C ~ 40°C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pressure

 

 

 

 

 

 

Normal

abnormal

 

 

 

High pressure switch

 

 

 

 

Operation OFF

 

 

 

 

 

 

 

 

 

 

 

(HPS)

 

 

 

 

 

 

 

 

 

 

 

 

 

Short

 

 

 

 

 

 

 

 

HPS1

 

 

2.35 ± 0.15MPa (24 ± 1.5kg / cm2)

 

 

Other than

 

 

 

 

 

 

 

 

 

HPS2

 

 

2.55 ± 0.2MPa (26 ± 2kg / cm2)

 

 

 

those list-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ed at left

 

 

 

 

 

 

 

 

HPS1

 

 

2.75 +- 0.10.05 MPa (28 +- 1.00.5 kg / cm2)

 

 

Open

 

 

 

 

 

 

 

 

 

HPS2

 

+ 0

 

+ 0

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.43 - 0.15 MPa (35 - 1.5kg / cm )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P Inner protector

27

Page 27
Image 27
Mitsubishi Electronics MXZ-24UV - E2 service manual Trouble criterion of main parts

MXZ-24UV - E2, MXZ-24UV specifications

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