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Daikin Aircon Light Blinking: How to Solve it and Understand Light Indicators

If you are a proud owner of a Daikin air conditioner, you know how crucial it is for your comfort, especially during scorching summer days. However, what happens when you see the aircon light blinking? Don’t panic! In this comprehensive guide, we will delve into the reasons behind Daikin aircon light blinking, explore effective solutions, and decode the light indicators to help you troubleshoot any issues that might arise. By the end, you’ll be equipped with the knowledge to keep your Daikin air conditioner running smoothly and efficiently.

Understanding the Causes of Daikin Aircon Light Blinking:

When you notice the aircon light blinking, it could be an indication of an underlying problem. Understanding the causes will help you determine whether it’s a minor issue you can resolve yourself or something that requires professional attention.

Common Reasons for Blinking Lights:

a) Communication Errors: Sometimes, the communication between the aircon unit and the remote control can get disrupted, resulting in blinking lights. This could be due to weak batteries or other electronic interferences.

b) Sensor Malfunction: Daikin air conditioners come equipped with various sensors to ensure optimal performance. If any of these sensors malfunction, the system may respond with blinking lights as a warning.

c) Power Supply Issues: Inadequate power supply or electrical problems can also lead to blinking lights. It’s crucial to check the power source and connections to rule out this possibility.

Environmental Factors that can Trigger Blinking Lights:

a) High Room Temperature: During scorching summer months, the aircon might struggle to maintain the desired temperature. In such cases, blinking lights can be a sign of stress on the system.

b) Dirty Air Filters and Blocked Air Vents: Regular maintenance is essential for the smooth functioning of any air conditioner. If air filters and air vents are clogged with dust and debris, the aircon might not operate optimally, leading to blinking lights.

How to Solve Daikin Aircon Light Blinking:

Dealing with blinking lights on your Daikin air conditioner doesn’t have to be a daunting task. Let’s explore some troubleshooting steps to resolve the issue:

Check the Power Supply and Connections:

  • Ensure the power supply to the aircon unit is stable and there are no loose connections.
  • Double-check the remote control batteries and replace them if necessary.

Clean Air Filters and Air Vents:

  • Regularly clean or replace the air filters as per the manufacturer’s recommendations.
  • Clean any dust or debris accumulated on the air vents to maintain smooth airflow.

Try Resetting the Aircon Unit:

  • Sometimes, a simple reset can resolve minor technical glitches causing the blinking lights.
  • Follow the user manual to perform a system reset and observe if the issue persists.

Seeking Professional Help:

If the blinking lights persist despite trying the troubleshooting steps, it’s time to seek professional assistance. Certified technicians have the expertise to diagnose complex issues and provide appropriate solutions. Additionally, if your Daikin air conditioner is still under warranty, it’s best to reach out to the authorized service center to avoid voiding the warranty.

Understanding Daikin Aircon Light Indicators:

Daikin air conditioners utilize a color-coded light system to provide valuable information about the unit’s status. Here’s what each light color indicates:

Green Light:

The green light indicates that the air conditioner is operating normally and is in good condition.

If you see a steady green light, it means everything is working as it should, and you can relax knowing your aircon is functioning optimally.

Orange Light:

The orange light serves as a warning sign. It indicates that the aircon has detected an issue that requires your attention.

It could be a signal for you to clean the air filters, check for blocked air vents, or any other maintenance-related matter.

Red Light:

The red light indicates a critical problem with your air conditioner that needs immediate attention.

If you see a red light blinking, it’s crucial not to ignore it. There might be a significant technical issue that requires professional repair.

Decoding Blinking Patterns:

Apart from the color-coded indicators, the number of times the light blinks can provide additional information about the issue. Here’s a general guide to help you decode the blinking patterns:

One Blink: This could indicate an issue with the aircon’s power supply or communication error.

Two Blinks: A double blink might suggest a problem with the system’s sensors or indoor unit.

Three Blinks: Three blinks may signify an issue with the outdoor unit or compressor.

Four Blinks: A series of four blinks could indicate a faulty fan motor or a problem with the condenser coil.


Understanding Daikin aircon light blinking is essential for the smooth operation of your air conditioner. By knowing the common causes and effective solutions, you can troubleshoot minor issues on your own, saving time and money. Regular maintenance, including cleaning air filters and air vents, will keep your aircon running efficiently and prolong its lifespan.

However, if the blinking lights persist or if you encounter a red light indication, it’s crucial to seek professional help. Certified technicians can diagnose and address complex technical problems to ensure your Daikin air conditioner operates optimally.

By familiarizing yourself with the color-coded light indicators and decoding blinking patterns, you can respond promptly to any issues, ensuring your air conditioner keeps you cool and comfortable throughout the year. Remember, a well-maintained aircon not only saves energy but also brings peace of mind, making it a worthwhile investment for your home’s comfort.