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Daikin AC error A5

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Last updated on June 25, 2022
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Daikin is a Japanese company that manufactures air conditioning systems. They are one of the biggest manufacturers of air conditioning systems in the world. Daikin has been manufacturing air conditioning systems since 1924 and it has been expanding its business around the world.

Daikin manufactures and sells a wide variety of air conditioning systems such as split system, direct-vent, heat pump, and electric cooling systems. Daikin makes high quality products that are built to last. Daikin is a Japanese company that manufactures air conditioning systems. It has several subsidiaries such as Daikin America Inc., Daikin Asia Pacific Co., Ltd., Daikin Singapore Pte Ltd.

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On this page, you will find more information about the most common causes and most relevant solutions for the AC error 'A5'. Do you need help straight away? Visit our support page.

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Error information
  • Category
    Heating
  • Error code
    A5
  • Product
    AC
  • Developer
    Daikin
  • First seen
    September 10, 2021
  • Verified
    Yes
JustAnswer
JustAnswer
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What causes the A5 error?

The Daikin documentation indicates that error code 'A5' is caused by the following problem: "High pressure control in heating, freeze-up protection control in cooling".

Do you think there is another cause for this error? Let others know in the comments.

How to solve Daikin AC error A5

We've created a list of solutions which you can follow if you want to solve this AC problem yourself. Do you need more help? Visit our support page if you need professional support with AC right away.

Daikin solution

Clogged air filter of indoor unit and short circuit Defect of indoor unit heat exchanger thermistor.

Do you still have problems with this error? Try one of the quick fixes below or leave a comment.

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Verified solution

If you are having trouble using your air conditioner or if you are having problems with other electronic appliances, you will probably encounter error code A5 on your device. There are a few things that you can do in order to fix this error. It can happen when something goes wrong with your device or when there is a problem with your power supply. Sometimes, it can be caused by common device errors or server problems. If you experience this error, try these solutions.

This error may be caused by an overheating or freezing of the heat exchanger, or high pressure control for heating and freeze-up protection for cooling. Usually, it is caused by a dirty air filter, a short circuit, or a problem with the temperature sensor in the heat exchanger. Also, if the indoor unit has a clogged air filter, it may be that the indoor unit has a short circuit or the thermistor in the heat exchanger is defective.

Normally, circuit breakers in molded-case equipment will trip if there are issues with the insulation around the equipment. So, before you restart the system, you should first check for any problems with the insulation. Resetting circuit breakers without first checking the insulation in the case may damage your equipment.

So, what you need to do is call their support. When you receive this error message, contact customer service. You can contact them by calling their customer service number, and you can visit their website after you call them. When someone at one of their customer support departments notices that your device is showing an error message, that support person will ask you to send the error message to them. When you finish doing that, you will know what to do to make them help you solve the problem.

Have you found a solution yourself, but it is not in the list? Share your solution in the comments below.

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