Error codes for Daikin Mini Split

Daikin is a Japanese company that has been designing and manufacturing air conditioning systems for some time. It has been able to grow to become one of the leading manufacturers of air conditioning systems in the world. The company has developed many products such as split ACs, portable ACs, room air conditioners, and much more. The company is well known for its quality and advanced technology.

Daikin Mini Split is a product that is designed to make your home more comfortable by providing you with excellent cooling and heating performance. It can be used both in indoor and outdoor applications. This makes it a great choice for homes that have different types of rooms such as the living room, bedroom, office, kitchen, patio, balcony, etc. The units are available in various sizes and styles. You can choose from standard models to premium models.

However, there are also some common issues that homeowners have with their Daikin Mini Split editions that can lead to inconvenient situations and even expensive repairs. The purpose of this article is to provide a comprehensive guide on how to identify these common issues so that you can be able to solve them quickly and effectively. Let’s check out some of the common problems and their possible solutions.

Error Codes

00: Normal Device.

UA: There is an indoor-outdoor unit combination fault.

U0: Shortage of Refrigerator.

U2: Drop in voltage between and main circuit overvoltage.

U4: Transmission failures between the indoor unit and the outdoor unit.

A1: The problem is the indoor PCB defective.

A5: High pressure protection or freeze-up protector.

A6: Issues with the fan motor.

C9: The sensor is faulty. It is a suction air temperature sensor.

EA: Cooling and heating switching error.

E1: Isolated fault on the circuit board.

E6: Faulty compressor, which was causing the compressor to start up not properly.

E7: DC fan motor failure.

F3: There is a high temperature discharge pipe control.

F6: A high pressure controller (cooling).

H0: Faulty sensor.

H6: Operation halts because of faulty position detection sensor.

H8: Isolation of DC current sensor fault.

H9: There is a faulty suction air temperature sensor.

J3: Faulty drain pipe temperature sensor.

J6: Faulty temperature sensor for heat exchangers.

L3: Electrical parts are damaged due to heat faults.

L4: Inverter circuit heatsink with high temperature.

L5: outputs overcurrent.

P4: There is a faulty inverter circuit heatsink temperature sensor.


Possible sounds.

Water that flows, caused by the refrigerant in the air conditioner. That is the sound made by the water in the air conditioner, heard when the water is pumped out from the air conditioner during cooling and drying operations. When the refrigerant flows into the air conditioner even when the air conditioner is not working and all the other rooms in the house are operating.

Blowing, a sound that occurs when the flow of the refrigerant in the air conditioner is switched over.

Pinging occurs when the size of the air conditioner increases or shrinks due to temperature changes.

The air conditioner does not work.

Check that:

Is it possible that the breaker is off or that the fuse was blown?

Is it possible that there is a power failure?

Are there batteries that are included in the remote controller?

Is the timer set already correct?

An abnormal functioning during an operation.

It is possible that the air conditioner will malfunction because of lightning or radio waves. Turn the breaker off again. Then try running the air conditioner with the remote controller.

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