Mitsubishi Electronics MS-GD08ND-ci service manual Troubleshooting check table

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8-3. Troubleshooting check table

• The following indication applies regardless of shape of the indicator.

flashing

 

 

 

· Flashing of the OPERATION INDICATOR lamp (on the left)

 

Operation Indicator

 

 

indicates possible abnormalities.

 

 

· The OPERATION INDICATOR lamp (on the left) is

 

 

lighting during normal operation.

 

 

Before taking measures, make sure that the symptom reappears for accurate troubleshooting. Self check table

No.

Abnormal

Indication

 

point

 

 

 

Both lamps flash at the same time.

 

Attachment

0.5-second ON

1

of the

 

 

horizontal

 

 

vane

0.5-second OFF

 

 

Symptom

Detection method

When the electricity is not conducted to the

Indoor unit safety device (FAN) of the horizontal vane. and outdoor

unit do not operate.

Check point

• Refer to 8-5. D "Check of

installation of the horizontal

vane".

• Refer to the characteristics of

Indoor coil

Left lamp flashes.

thermistor

2-time flash

2

 

Room

 

tempera-

2.5-second OFF

ture

 

thermistor

 

 

Left lamp flashes.

Indoor fan

3-time flash

3 motor.

 

2.5-second OFF

 

 

Left lamp flashes.

 

Indoor

4-time flash

4

control

 

system

 

 

 

2.5-second OFF

Outdoor unit does not operate.

Indoor fan motor repeats

12seconds ON and 3 minutes OFF. When the indoor fan motor breaks, the fan keeps stopping.

Outdoor unit does not operate.

Detect Indoor coil/room temperature thermistor short or open circuit every 8 seconds during operation.

When rotational frequency feedback signal is not emitting during 12-second indoor fan operation.

When it cannot properly read data in the nonvolatile memory of the indoor electronic control P.C. board.

indoor coil thermistor and

room temperature thermistor

shown in 8-6.

• Refer to 8-5.A"Check of

indoor fan motor".

•Replace the indoor electronic control P.C. board.

NOTE : When the indoor unit has started operation and the above detection method has detected an abnormality (the first detection after the power ON), the indoor electronic control P.C. board turns OFF the indoor fan motor with the OPERATION INDICATOR lamp flashing.

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Contents Parts Catalog TBB014 ContentsMS-A08ND- MS-A12ND Technical ChangesMS-A10ND Part Names and Functions AccessoriesIndoor Unit MS-GD08ND- C1 MS-GD10ND- C1 MS-GD12ND- C1 Remote Controller MS-GD08ND- C1 MS-GD10ND- C1 MS-GD12ND- C1 SpecificationMS-GD08ND- C1 Indoor Unit Outlines and DimensionsMS-GD10ND- C1 MS-GD12ND- C1 Unit mmMS-GD08ND- C1 MS-GD12ND- C1 Indoor Unit MS-GD10ND Wiring DiagramMS-GD08ND- C1 MS-GD10ND- C1 Indoor Unit MS-GD12ND- C1 Refrigerant System DiagramHow to modify the remote controller P.C. board Service FunctionsRemote controller model MP2B Operation How to release Auto Restart FunctionLead wiring Housing point TroubleshootingHow to install the horizontal vanes Operation Indicator Instruction of troubleshootingTroubleshooting check table Trouble criterion of main parts MS-GD08ND- C1 MS-GD10ND- C1 MS-GD12ND- C1Check of indoor fan motor Troubleshooting flowCCheck of indoor electronic control P.C. board MS-GD10NDMS-GD08/GD12NDCheck of installation of the horizontal vane Power monitor, receiver P.C. board Test point diagram and voltageIndoor electronic control P.C. board Removing the panel Photo Indoor Unit MS-GD10ND MS-GD12ND Operating Procedure PhotosSleeve Removing the electrical box Removing the nozzle assembly and the vane motorRemoving the indoor fan motor and the line flow fan Amphur MUANG, Chonburi 20000 Thailand Made in Thailand 700/406 MOO 7, Tambon DON HUA ROH

MS-GD08ND-ci specifications

The Mitsubishi Electronics MS-GD08ND-ci is a premium air conditioning unit designed to deliver unparalleled comfort and energy efficiency in residential and commercial spaces. This model exemplifies advanced engineering and cutting-edge technology that Mitsubishi is renowned for, making it an ideal choice for climate control.

One of the standout features of the MS-GD08ND-ci is its inverter technology. This innovative feature allows the unit to adjust its cooling capacity dynamically based on the ambient temperature and the desired settings. This not only enhances comfort by providing a more consistent temperature but also significantly reduces energy consumption, making it environmentally friendly and cost-effective. Users can enjoy up to 30% energy savings compared to traditional air conditioning systems.

The MS-GD08ND-ci boasts a sleek and modern design, making it suitable for various interior styles. Its compact size allows for easy installation even in constrained spaces, and the unit operates quietly, ensuring that comfort is not compromised by noise. The low noise level makes it ideal for bedrooms, study areas, and quiet environments where silence is essential.

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Moreover, the MS-GD08ND-ci incorporates a user-friendly remote control system that allows for convenient temperature adjustments from anywhere in the room. Some models can also be integrated with smart home systems, providing users with additional control and flexibility through smartphone applications.

In terms of durability, Mitsubishi has designed the MS-GD08ND-ci to withstand various environmental conditions. Its materials are selected for their resilience, ensuring a long operational life and minimal maintenance needs.

In conclusion, the Mitsubishi Electronics MS-GD08ND-ci is a sophisticated air conditioning unit that combines intelligent technology, energy efficiency, and user-friendly features. Its inverter technology, advanced filtration, sleek design, and quiet operation underscore Mitsubishi's commitment to quality and comfort. Whether for residential or commercial applications, the MS-GD08ND-ci stands as a testament to Mitsubishi’s innovation in climate control solutions, making it a top contender in the market.
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