Daikin Aircon light blinking
Daikin Aircon Light blinking
A blinking light on your Daikin air conditioner is a sign that something is wrong with the system. This could indicate minor issues like a clogged filter or more serious problems such as compressor malfunctions. In this guide, we’ll explore the common reasons why your Daikin AC light is blinking and how to troubleshoot it.
Daikin Blinking Light Colors & Their Meanings
Daikin Red Light Blinking
- Cause: This usually indicates a major system failure, such as a compressor issue, refrigerant leak, or electrical malfunction.
- Solution: Turn off the aircon and check for error codes. Contact a professional if the issue persists.
Daikin Green Light Blinking
- Cause: Typically, a green blinking light signals a minor issue like a clogged air filter, sensor fault, or airflow obstruction.
- Solution: Clean the air filter and ensure there are no blockages. If the blinking continues, a technician may need to inspect the sensor.
Daikin Orange Light Blinking
- Cause: An orange blinking light often relates to drainage issues, such as a clogged condensate drain or water leakage.
- Solution: Check and clean the drain pipe. If water leakage persists, professional servicing is recommended.
Common Causes of Daikin Aircon Light Blinking
1. Dirty or Clogged Air Filters
- When the air filters are clogged with dust and debris, airflow is restricted, causing the unit to overheat and blink.
- Solution: Clean or replace the air filter every 3 to 4 months for optimal performance.
2. Refrigerant Gas Leak
- Low refrigerant levels can cause your aircon to malfunction and blink as a warning sign.
- Solution: Check for leaks and top up the gas with professional servicing.
3. Faulty Thermistor or Temperature Sensor
- If the thermistor (temperature sensor) is faulty, it can misread temperature levels, leading to blinking lights.
- Solution: A professional technician can inspect and replace the faulty sensor.
4. Drainage Issues or Water Leakage
- A clogged or damaged drain pipe can lead to water leakage, triggering the blinking light.
- Solution: Regular aircon servicing prevents drainage blockages.
5. Electrical or PCB Board Issues
- A faulty PCB (Printed Circuit Board) can lead to communication errors, resulting in blinking lights.
- Solution: If the PCB is damaged, an expert needs to repair or replace it.
Daikin Aircon Error Codes & Their Meanings
Here are some common Daikin error codes related to blinking lights:
| Error Code | Meaning | Possible Solution |
| A1 | Indoor PCB malfunction | Repair or replace PCB |
| A3 | Drainage system issue | Check and clean the drain pipe |
| E5 | Overload or compressor issue | Check refrigerant levels & compressor |
| U4 | Communication error between indoor & outdoor unit | Check wiring & connections |
| J3 | Faulty thermistor | Replace faulty sensor |
View More: Daikin Aircon error code
How to Reset Your Daikin Aircon
If your Daikin aircon light is blinking, try these simple steps to reset the system:
- Turn Off the Power: Switch the aircon from the remote control and circuit breaker.
- Wait for 5-10 Minutes: Allow the system to reset.
- Turn It Back On: Power on the aircon and check if the blinking light disappears.
- Check for Error Codes: If the light persists, refer to the above error codes.
When to Call a Professional?
If your Daikin aircon continues blinking despite troubleshooting, it’s best to seek professional aircon servicing. Our team at Zoomcool Aircon offers expert diagnostics, repair, and Daikin aircon servicing in Singapore.
📞 Call us today at +65 90050975 for fast and reliable aircon repair!
Conclusion:
A blinking light on your Daikin aircon can indicate a minor issue or a more serious malfunction. Regular aircon maintenance and timely repairs can prevent these problems and keep your AC running efficiently.