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Reasons Why Aircon Will Have Blinking Lights and How to Fix It



Air conditioners are advanced home appliances that can be affected by environmental factors. For example, if dust and dirt accumulate on the external grille, it can affect your aircon's performance. Typically, blinking lights on an aircon indicate a potential internal error, signaling the need for aircon repair. Many aircon brands use blinking lights to indicate an internal error that needs attention. Here are some common reasons why your aircon light might blink.


1.       Low Maintenance of Aircon

Not keeping up with regular air conditioner maintenance can cause problems and malfunctions. It's essential to perform routine checks to ensure your unit stays clean, providing a consistent cool air experience.

 

If the light is flashing, it could signal the need for aircon servicing. Check for clogged air filters as a troubleshooting step, or contact an aircon servicing company for assistance.

 

2.       Air Filter Clogged

Regularly cleaning aircon filters ensures the evaporator unit runs smoothly, providing cleaner and stronger airflow. Without proper maintenance, dust can accumulate, causing clogged filters and unpleasant odors. To prevent airflow blockage in the evaporator coil, it's crucial to clean the aircon filters at least every three months. Neglecting the evaporator coils can lead to freezing and water leaks when the coil melts. For thorough cleaning, it's advisable to hire a trained professional for an aircon chemical overhaul.

 

3.       Improper installation

If inexperienced technicians installed your air conditioner, the aircon lights blinking may happen, indicating an unsuccessful installation. When the light appears, it's vital to determine the cause by decoding the error code or checking the manual. We highly recommend hiring a well-reviewed professional to ensure proper and smooth aircon installation.

 

4.       Evaporator Coils Freezing

 If you receive this signal, address it promptly to avoid an aircon water leakage emergency. Frozen evaporator coils could be due to duct issues. Check for frozen coils by opening the front panel and looking for ice. If the coils are frozen, briefly turn off the aircon compressor until the evaporator temperature rises. If the problem continues, contact a professional aircon servicing company.

 

5.       Electrical Faulty

If your aircon has an electrical problem, it's likely due to a damaged printed circuit board (PCB) or issues with the electrical wiring. Follow these steps to troubleshoot:

 

1. Check your owner's manual for the error code to identify the issue.

2. Inspect the PCB for moisture; clean it with a cotton cloth and alcohol if dirty.

3. Examine the electrical wiring for a fuse or blown component if the unit is blowing air.

4. If the unit doesn't turn on, check the protection components in the electrical wiring for a blown fuse or breaker. Also, inspect the ground wiring for surge protection.

 

If you face challenges, contact a professional aircon servicing company for their expertise and tools to fix the problem.

 

6.       Poor Airflow

If your aircon isn't cooling properly due to poor air circulation, it might be because of incorrect placement or a problem with the aircon drive motor. Check the user manual for the displayed error code on the aircon unit. Many manufacturers display error messages on the remote control or control panel. If the error code isn't in the manual, consider getting help from an aircon maintenance company.

 

7.       Leak of refrigerant

Refrigerant is vital for efficient aircon performance. If there's not enough refrigerant, problems like condensation, freezing condenser, and aircon leaks may occur, potentially damaging the compressor unit with a hissing sound.

To address low refrigerant levels, you usually need an aircon gas top-up. A professional aircon maintenance company can fix the refrigerant leak and handle any related aircon issues. Refrigerant leaks are a health and environmental concern, so it's crucial to contact an aircon maintenance company promptly if you notice refrigerant leakage from your aircon. 


8. Malfunctioning compressor 

  

If the compressor is not working correctly, it can cause a blinking light on your aircon unit. The compressor is responsible for cooling the air, so if it’s not working properly, your home will not be as cool as you want it to be.

9. Clogged condensate drains 

  

If the drains that collect the water from your aircon unit are clogged, it can lead to water damage in your home. You will need to clean out the drains frequently to prevent this from happening.

10. Issues with the thermostat 

  

If there is a problem with the thermostat, it can also cause your air conditioner’s light to blink. You may need to replace the thermostat if it is not working correctly.

11. Issues with system totals 

  

Every aircon unit has multiple totals that add up together to determine if everything is working correctly or not things like bad airflow sensors. If there are any issues detected within these totals, the light will begin to blink as an alarm of sorts. A professional aircon technician could help troubleshoot this for you and provide more details on what needs attention on your specific aircon system.

 

How to Resolve Aircon Blinking Light?


If you've ever encountered a situation where your air conditioner's lights are blinking, understanding the potential causes and learning how to address them can help restore your cooling comfort efficiently.


Let's delve into the troubleshooting steps to tackle blinking aircon lights and get your system back in optimal working condition.

 

Check for Loose Wiring in Your Aircon


If the air conditioner experiences a sudden power surge or unusual load, it might cause aircon light blinking. This could be due to issues with the Printed Circuit Board (PCB) or electrical wiring.


To address this, skilled technicians should conduct insulation and continuity tests for proper diagnosis and resolution. If a fault is detected in the PCB or power cable, it's recommended to replace the defective part promptly. Installing an aircon socket can safeguard your aircon and other home appliances from power overload.


Test for Error Code


When troubleshooting air conditioners in Singapore, most models use aircon light blinking to signal potential faults. Check your aircon brand manual for error codes that provide essential information about the issue.


Remember that error codes differ by brand and model, so consult each manual if you have multiple aircon brands. While you can refer to the instruction manual for troubleshooting, it's recommended to hire professional ac repair services to avoid additional problems with your aircon unit.

 

In conclusion, addressing blinking aircon lights is essential for maintaining the optimal performance of your air conditioning unit. By following the troubleshooting steps outlined in this guide, you can identify and resolve common issues, ensuring that your aircon operates efficiently.


Remember, if you encounter persistent problems or are unsure about the resolution, it is always wise to seek professional assistance from an experienced aircon service provider.


Taking proactive steps to address blinking lights will not only enhance your comfort but also prolong the life of your air conditioning system.

338 Aircon Servicing Singapore provides an extensive range of Aircon Services including Aircon Servicing, Aircon Repairs, Aircon Installation of the best aircon brands, Chemical Overhaul, Gas Top-up, Aircon Leaking Water, and Aircon Not Cold Fix, and more. We have a team of professional technicians who are equipped with vast knowledge and experience in the Aircon industry.


It’s always a good time to talk about the common issues that aircon units have. We have over 15 years of experience in dealing with aircon works and have completed thousands of aircon works for both residential (Landed, Condo, and HDB) and commercial. We are a highly recommended Aircon Company in Singapore, with many delighted customers and reviews over the years on Google and Facebook.


Call or WhatsApp us at +65 88554141 / https://wa.me/6588554141 for a transparent quotation and honest pricing for all your aircon needs or We offer a fast and efficient service to serve any of your aircon needs!


Learn more about 338 Aircon Servicing Singapore here:

👉 3888 x Google Reviews https://g.page/r/CTnP0peKovK1EB0/review

1 Comment


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Aug 26

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