10-4. TROUBLE CRITERION OF MAIN PARTS

MUZ-GE09NA MUZ-GE12NA MUZ-GE15NA MUZ-GE18NA

MUY-GE09NA MUY-GE12NA MUY-GE15NA MUY-GE18NA

Part name

 

 

Check method and criterion

 

 

 

 

Figure

Defrost thermistor (RT61)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(MUZ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fin temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

thermistor (RT64)

Measure the resistance with a tester.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ambient temperature

Refer to 10-6. “Test point diagram and voltage”, 1. “Inverter P.C.

 

 

 

 

 

 

 

 

thermistor (RT65)

 

 

 

 

 

 

 

 

board”, for the chart of thermistor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor heat exchanger

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

temperature thermistor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(RT68)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measure the resistance with a tester. Before measurement, hold the

 

 

 

 

 

 

 

 

Discharge temperature

thermistor with your hands to warm it up.

 

 

 

 

 

 

 

 

 

 

thermistor (RT62)

Refer to 10-6. “Test point diagram and voltage”, 1. “Inverter P.C.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

board”, for the chart of thermistor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measure the resistance between terminals using a tester.

 

 

 

 

 

 

 

 

 

(Temperature: 14 ~ 104°F(-10 ~ 40°C))

 

 

 

 

 

WHT

RED BLK

 

 

 

 

 

 

 

Normal (Ω)

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressor

 

 

GE09

GE12

GE15/18

 

 

 

 

 

 

 

W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U-V

1.36 ~ 1.93

1.52 ~ 2.17

0.78 ~ 1.11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U-W

 

 

 

V

 

 

 

U

 

 

 

V-W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measure the resistance between lead wires using a tester.

 

 

 

 

 

 

 

 

 

(Temperature: 14 ~ 104°F(-10 ~ 40°C))

 

 

 

 

 

WHT

RED BLK

 

 

Color of lead wire

 

 

 

 

 

Normal (Ω)

 

 

 

 

 

 

W

 

 

Outdoor fan motor

 

 

 

 

GE09/12

 

GE15

 

GE18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED – BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK – WHT

 

 

 

28 ~ 40

 

 

11 ~ 16

 

V

 

 

U

 

 

 

WHT – RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measure the resistance using a tester.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Temperature: 14 ~ 104°F(-10 ~ 40°C))

 

 

 

 

 

 

 

 

 

 

 

 

 

R. V. coil (21S4)

 

Normal (kΩ)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(MUZ)

 

0.97 ~ 1.38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measure the resistance using a tester.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Temperature: 14 ~ 104°F(-10 ~ 40°C))

 

 

 

 

 

WHT

 

 

 

 

 

 

 

 

Color of lead wire

 

 

Normal (Ω)

 

 

 

 

 

RED

 

 

LEV

Expansion valve coil

 

WHT – RED

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(LEV)

 

RED – ORN

 

37 ~ 54

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YLW – BRN

 

 

 

 

 

 

 

 

 

YLW BRN BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRN – BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

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Mitsubishi Electronics MUZ-GE12NA, MUY-GE12NA Trouble Criterion of Main Parts, GE09 GE12 GE15/18, GE09/12 GE15 GE18
Page 27 Page 29

MUZ-GE09NA, MUZ-GE15NA, MUY-GE15NA, MUZ-GE18NA, MUZ-GE12NA specifications

Mitsubishi Electronics offers a range of advanced air conditioning systems, including the MUY-GE12NA, MUY-GE18NA, MUY-GE09NA, MUZ-GE12NA, and MUZ-GE18NA models. These units are designed for optimal energy efficiency and superior comfort, making them ideal for residential and commercial applications.

One of the standout features of these models is their inverter technology. By adjusting the compressor speed according to the cooling or heating demand, inverter systems provide precise temperature control while significantly reducing energy consumption compared to traditional units. This not only translates to lower utility bills but also less environmental impact.

The MUY-GE series units come with a user-friendly remote control that allows for easy adjustments of temperature settings, fan speeds, and operational modes. Smart operation modes include cooling, heating, and dehumidification, thereby catering to various climate needs. The units also include a programmable timer, enabling users to set the air conditioner to operate at specific times, enhancing convenience and efficiency.

Another impressive characteristic is the advanced air filtration system. Mitsubishi integrates a multi-stage filtration mechanism that includes a washable pre-filter, a pleated filter, and a high-performance deodorizing filter. This ensures cleaner indoor air by effectively reducing allergens, dust, and odors, contributing to a healthier living space.

The sleek and modern design of these units also allows for easy installation and compatibility with various interior settings. The MUY-GE09NA, MUY-GE12NA, and MUY-GE18NA indoor units are designed to be compact and unobtrusive, while the outdoor units (MUZ series) are engineered for durability and quiet operation.

Noise levels are another critical aspect where Mitsubishi excels. These air conditioning systems operate quietly, making them suitable for bedrooms, offices, and other noise-sensitive environments. Their Whisper-Quiet technology ensures that sound levels during operation remain low, promoting a peaceful atmosphere.

Mitsubishi Electronics ensures customer satisfaction with robust support and warranty options, emphasizing quality and reliability. In summary, the MUY-GE12NA, MUY-GE18NA, MUY-GE09NA, MUZ-GE12NA, and MUZ-GE18NA models stand out for their energy-efficient inverter technology, user-friendly controls, advanced air filtration, sleek design, and quiet operation, making them a smart choice for modern cooling and heating needs.
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