6.5 Importance detail of fault analysis

6.5.1Flow chart of self - check 1) Self - check monitor circuit

For show the fault condition of refrigerator and clarify point. Therefore, self - check monitor control is provided that are able to monitor No. of blinking condition with electric circuit and electric part . Before disconnect power plug please

confirm LED self - check .

Refrigerator plug

connect?

Yes

Self - check

Mal Function Display

(No .of blinking)

"CONTROL PANEL"

No

Connect power plug

LED show shelf - check

No

No change on display

 

Normal operation

 

Yes Caution

1. As the part list below couldn't analysis by self - check , then

Check the fault point as

please check by reference to trouble shooting page.

malfunction list

- Dilapidation of door switch ,refrigerator room and freezer room.

 

 

- Dilapidation of compressor and fan motor .

 

 

 

 

2. If have malfunction when supply the power . Compressor and

Disconnect power plug

fan motor will not operate 20 minutes.

 

Repair the macfunction cause

Connect power plug

2)Interval of self check analysis

-Troubles of thermistor : will check always.

-Trouble of defrost heater : will just analyse during defrost display only.

(The period checking will analyse the defrost circuit after connect the plug 2 hours )

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Mitsubishi Electronics MR-455R-ST-A(NZ), MR-455R-W-A, MR-385R-ST-A Importance detail of fault analysis, Yes Caution

MR-385R-W-A, MR-385R-W-A(NZ), MR-455R-W-A(NZ), MR-455R-ST-A(NZ), MR-385R-ST-A(NZ) specifications

Mitsubishi Electronics has long been recognized for its innovative solutions in the realm of air conditioning and climate control. Among its impressive lineup are the MR-455R-W-A, MR-385R-ST-A, MR-420R-W-A(NZ), and MR-420R-ST-A(NZ) models, each designed to meet diverse cooling and heating needs while ensuring energy efficiency and user comfort.

The MR-455R-W-A is a versatile unit that stands out for its powerful cooling capacity, making it ideal for larger spaces. It is equipped with advanced inverter technology, which allows the compressor to operate at variable speeds depending on the cooling or heating requirements. This not only enhances energy efficiency but also ensures quieter operation, making the MR-455R-W-A a perfect choice for residential and commercial environments.

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The MR-420R-W-A(NZ) is tailored specifically for the New Zealand market, emphasizing performance in diverse climatic conditions. This model incorporates Mitsubishi's sophisticated air filtration technology, effectively removing dust, allergens, and other pollutants from the air, contributing significantly to indoor air quality. With its sleek design and efficient operation, the MR-420R-W-A(NZ) is ideal for modern homes looking for both aesthetics and functionality.

In contrast, the MR-420R-ST-A(NZ) offers similar benefits but with a focus on reliability and durability. Its robust construction ensures it can withstand varying weather conditions, while the energy-efficient operation helps in minimizing utility costs. Both MR-420 models share a common feature – the ability to operate quietly, making them suitable for bedrooms or study areas.

Each model utilizes Mitsubishi's proprietary technologies aimed at maximizing energy efficiency and comfort. Features such as self-diagnosis capabilities, easy installation, and maintenance enhancements contribute to the overall user experience.

In conclusion, Mitsubishi Electronics has designed the MR-455R-W-A, MR-385R-ST-A, MR-420R-W-A(NZ), and MR-420R-ST-A(NZ) as reliable and efficient air conditioning units. With features focusing on energy conservation, indoor air quality, and user-friendly operation, these models cater to a wide range of customer needs and preferences.