If you’ve noticed your aircon light blinking and the unit not working, don’t panic. Most of the time, a blinking light is your aircon’s way of signaling that something isn’t right.
In this post, we’ll explain the common reasons for an aircon light blinking, what you should check first when you see that blinking indicator, and when it’s time to call a professional. Understanding what a blinking light means can help you act quickly and prevent bigger, costlier issues with your aircon.
What Does It Mean When Your Aircon Light Blinks?
First of all, a blinking light on your aircon means the system has detected an issue.
Modern air conditioners have built-in warning signals to alert you when something’s wrong.
Because of this, your unit may stop working to prevent further damage.
In short, it’s a sign that your aircon needs a check-up.
Common Reasons Why Your Aircon Light Is Blinking
Now, let’s go through the usual reasons one by one:
Dirty or Clogged Filters
Firstly, dirty filters can block airflow.
As a result, your aircon struggles to cool the room and may trigger a blinking light as a warning.
Low Refrigerant or Gas Leak
Next, if your aircon is low on refrigerant (cooling gas), it won’t cool properly.
This can cause the system to overwork and the light to start blinking.
In some cases, a gas leak might be the problem behind this.
Faulty Sensor or PCB
In addition, problems with the temperature sensor or the PCB (Printed Circuit Board) can trigger a blinking light.
When this happens, your aircon might either stop cooling or refuse to turn on.
Electrical Issues
Another possible cause is a loose wire, faulty power supply, or blown fuse.
Therefore, if none of the above issues seem to be the problem, it’s best to get your aircon checked by a professional.
What Should You Do When This Happens?
So, what can you do if your aircon light starts blinking?
Here are a few simple steps:
✔️ Turn off your aircon for 5–10 minutes and restart it
✔️ Check and clean your air filters
✔️ Ensure your remote control settings are correct
✔️ If the problem continues, call a certified technician
Remember, avoid opening your aircon unit or attempting repairs on your own, as this might cause more harm than good.
Need Fast Aircon Repair? Contact Lion City Air Conditioner Services PTE LTD!
In conclusion, a blinking light means your aircon needs attention — and the sooner you fix it, the better.
Leaving it too long can lead to bigger, costlier problems.
At Lion City Air Conditioner Services PTE LTD, we offer fast, reliable aircon troubleshooting, repairs, and servicing anywhere in Singapore.
Our skilled team can quickly find the cause and get your unit running smoothly again.
📞 Call us today at +65 8818 5781
🌐 Book your appointment online at lioncityaircon.sg
