Daikin Aircon Error Codes: Troubleshoot Common Issues

Daikin Aircon Error code

Daikin Aircon Error code

Daikin air conditioners win over customers thanks to their high performance and low power consumption. However, as with any appliance without exception, they sometimes malfunction and report it to the user through error codes. It can be simply comprehended that knowing the function of the air conditioning unit error codes is useful in finding the trouble area and in evaluating whether it’s time to call an expert or solve the trouble on your own.

In this article, we will explain the reasons for the most persistent errors in Daikin aircon systems, to ensure that your device functions seamlessly.

What are Daikin Aircon Error Codes?

Daikin aircon error codes are the pre-programmed screw-ups of the unit that can’t be fixed by the operators. The early fault diagnosing operational methods are elements supporting the fault development and identifying the practice-prone reasons beforehand.

Typical Daikin Air Conditioning Breakdowns And Their Solutions

The following are some of the common error codes encountered concerning the Daikin aircon and their meanings:

1. Error Code U4

This means that communication between the indoor unit and the outdoor unit is lost.

Cause: More often required attention is to the wiring of the two units and or hence communication breakdown caused by loose connections or turned-up damaged ones.

Solution: Look at the wire harness that connects the two units. If it is found to be damaged, it is advisable to enlist the services of an expert to fix the problem.

2. Error Code A1

Meaning: Malfunction of the indoor PCB.

Cause: This Aircon A1 error code means that the indoor PCB (printed circuit board that manages electrical aspects of running that unit) has an issue.

Solution: Aircon reset may help to make the fault go away but if the problem persists, it would be advisable for a qualified technician to look at the printed circuit board as it may be beyond repairs.

3. Error C4

Scop: Damaged heat exchanger sensor.

Caus: The heat exchanger sensor operates to assist temperature levels and its dysfunction may end up giving room for minimal cooling.

Resolution: Cleaning of air filters and the heat exchange may be attempted. If the problem persists sensor replacement is probably the way to go.

4. Error Code E5

Definition: Compressor Overcurrent.

Origin: This may happen when there are clogged air filters, dirty condensation coils, or due to high pressure in the refrigeration circular system that leads to the overworking of the compressor.

Resolution: Power down the system, and check the filters. Wash them if needed. If it still displays the error, seek the help of an air conditioning technician to check the compressor.

5. Error Code L5

Definition: Lock of the compressor.

Origin: Typically, it occurs due to a fault in the compressor motor. The motor may have seized or gone bad due to age or issues with the refrigerant.

Resolution: You will require the services of a qualified technician to assess the compressor and replace it if deemed fit.

6. Error Code U0

Definition: Less refrigerant than required.

Origin: It occurs when the refrigerant in your system is above the permissible level. This may happen due to a refrigerant leak or careless fitting. 

Resolution: A qualified technician will have to come in, perform a leak check, correct any leaks if any, and refill the system with the right amount of refrigerant.

Steps To Reset a Daikin Aircon Unit

For one, you don’t have to rush and look for an aircon technician. A simple reset might suffice in fixing your Daikin aircon unit. In most cases, a reset is all that is needed to fix an irritating problem, such as a power surge or some hiccup.

How to Reset Daikin Aircon:

  1. Switch off all power to the aircon at the main electrical panel.
  2. Do not turn on the unit for a minimum of 5 minutes.
  3. Turn the power on and repeat the operation of the unit.
  4. Wait and observe whether the error code disappears after a short duration.
  5. This implies there is a more serious problem and one that needs attending by an expert if the error code is still showing.
When to Seek the Services of an Expert

Only minor problems such as the filters being dirty or minor loss of communication can be resolved at home but other more serious errors need an aircon technician. Should the error code be from a compressor, a PCB, or something to do with refrigerant levels, then expert assistance is necessary to avert damage to the appliance.

Conclusion

Error codes should not be viewed as a nuisance for it is important to attend to them to ensure the efficient operation of your Daikin aircon. Rather, they assist you in recognizing the trouble in the shortest time possible and help avoid aggravation of the situation. Thus, it is wise to be familiar with these codes so that one knows when to repair faults at home and when to call for help.

For efficient And many more Daikin aircon repairs and services in Singapore, reach out to Zoomcool for aircon maintenance services for your equipment.

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