9 TROUBLESHOOTING

9-1. TROUBLESHOOTING

<Error code display by self-diagnosis and actions to be taken for service (summary)>

Present and past error codes are logged and displayed on the wired remote controller or controller board of outdoor unit. Actions to be taken for service and the trouble reoccurrence at field are summarized in the table below. Check the contents below before investigating details.

Unit conditions at service

Error code

Actions to be taken for service (summary)

 

Displayed

Judge what is wrong and take a corrective action

 

according to “9-3. Self-diagnosis action table”.

 

 

The trouble is reoccurring.

Not displayed

Conduct troubleshooting and ascertain the cause of the trouble

 

according to “9-4. Troubleshooting by inferior phenomena”.

 

 

 

 

Consider the temporary defects such as the work of

 

 

protection devices in the refrigerant circuit including

 

 

compressor, poor connection of wiring, noise and etc.

 

Logged

Re-check the symptom, and check the installation

 

environment, refrigerant amount, weather when the

 

 

trouble occurred, matters related to wiring and etc.

The trouble is not reoccurring.

 

Reset error code logs and restart the unit after finishing service.

 

There is no abnormality in electrical component,

 

 

controller board,remote controller and etc.

 

 

Re-check the abnormal symptom.

 

 

Conduct trouble shooting and ascertain the cause of the trouble

 

Not logged

according to “9-4. Troubleshooting by inferior phenomena”.

 

Continue to operate unit for the time being if the cause

 

 

is not ascertained.

 

 

There is no abnormality concerning of parts such as electrical

 

 

component, controller board, remote controller and etc.

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Mitsubishi Electronics PKA-A36KA4.TH, PKA-A24KA4.TH According to 9-4. Troubleshooting by inferior phenomena

PKA-A36KA4.TH, PKA-A30KA4.TH, PKA-A24KA4.TH specifications

Mitsubishi Electronics introduces its PKA series of commercial air conditioners, comprising models PKA-A24KA4.TH, PKA-A30KA4.TH, and PKA-A36KA4.TH. These units are designed to meet the growing demand for energy-efficient and reliable climate control solutions in commercial spaces. Each model in the series is equipped with advanced features that set them apart in the competitive air conditioning market.

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The PKA series features advanced filtration technology, including a highly efficient air purification system. This enhances indoor air quality by removing dust, allergens, and other airborne pollutants, creating a healthier environment for occupants. The inclusion of a self-cleaning function also contributes to maintenance ease, as the unit automatically cleans the heat exchanger, preventing dust buildup and ensuring efficient operation.

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Overall, the Mitsubishi Electronics PKA-A24KA4.TH, PKA-A30KA4.TH, and PKA-A36KA4.TH units represent a perfect blend of modern technology and user-centric design, providing businesses with effective, efficient, and quiet climate control solutions. With their advanced features, energy-saving capabilities, and emphasis on air quality, these models stand out as premier choices for managing environmental comfort in commercial applications.