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How to Resolve Blinking Aircon Light

In this guide, we will explore the common reasons behind blinking aircon lights and provide practical solutions to resolve these issues. 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 aircon 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 / 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:

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