Fixing Aircon Blinking Light Problem - 4 Ways to Troubleshoot Your Mitsubishi Starmex Air Conditioner (Part 1)

Fixing Aircon Blinking Light Problem - 4 Ways to Troubleshoot Your Mitsubishi Starmex Air Conditioner (Part 1)

Bought a new Mitsubishi Starmex air conditioner?

It’s most likely expensive because of the premium brand and advanced features. 

What happens if it starts to malfunction a few days after installation? You can easily identify a problem with it when you notice the aircon light blinking.

Remember that a blinking aircon light is a clear indication that something is wrong with the appliance. And yes, even though this is a coveted brand with highly reliable and robust performance, it can still run into issues.

It happens even if you’ve just bought a new unit or if your current one has been serving you for years. Whichever it is, it’s going to be very helpful to deduce that blinking aircon light with a troubleshooting guide. 

Read on to find out more! 

Why Is My Mitsubishi Starmex Aircon Blinking? 

There are various reasons why your Mitsubishi aircon light is blinking, but it’s usually not a major cause for alarm. 

4 Reasons Your Mitsubishi Starmex Air Conditioner Is Not Working 

In this article, we’re going to highlight four common reasons for a faulty air conditioner. Stay with us till the end to discover useful tips!

Frozen Condenser 

How do you expect your air conditioner to work when the condenser has frozen solid?

As a key component, the condenser is important to ensure the continuity of the unit. Once it’s frozen over, it becomes a tricky situation where you’ll need to call in an aircon maintenance expert to help you with it. 

Avoid attempting to fix the problem yourself unless you’re a professional. This is because an air conditioner is a delicate machine and trying to DIY it might worsen existing problems. 

Prevention is always better than cure, and one surefire way to avoid such issues is to make sure you service your unit regularly. 

Problems With the Electricity Supply

One potential cause of a problematic Mitsubishi Starmex air conditioner is an issue with the electricity supply. Not every problem will be easily distinguishable and identified. 

Occasionally, the key issue might be less clear. Problems with the electricity supply can cause your air conditioner to suddenly stop functioning. 

Luckily, it’s not difficult to identify this potential issue. Simply check the other electrical appliances around the house, and if they aren’t working either, it’s likely to be the electricity supply. 

Another easy way is to inspect your fuse box and see if the relevant switches are turned on. 

Since it concerns the electricity, you should call in a technician to resolve it for you safely. 

Plug Overload 

Realized that your Mitsubishi Starmex air conditioner simply stopped operating without a clear reason?

The problem may be less distinguishable like the electricity supply. In this case, it might be because it’s sharing the power with other electrical appliances at home. 

When it comes to your air conditioners, we recommend delegating a separate plug for them. Avoid using one plug for multiple appliances because it may lead to issues. If the plug malfunctions, it may also affect all your appliances at the same time. 

Cooling-related Problems 

Is your air conditioner blowing out hot air? 

Cooling-related problems are a common issue with most air conditioners, no matter the brand or model. Such issues happen because the unit is completely operative but delivering warm or hot air.

If you see this happening to your Mitsubishi Starmex air conditioner, you can take a quick look at two key parts: the outdoor condenser and inner fan coil part. 

The outdoor condenser functions by taking in the cool air released by the inner compartment. If this occurs, you should engage professional help and services. 

This is because the outdoor unit typically has complex parts with a high amount of voltage. To be safe, it’s recommended to get experts to do it for you because they know the safety guidelines clearly. 

How Do I Reset My Mitsubishi Starmex Aircon? 

Resetting your aircon may provide some help in certain cases. 

Most Mitsubishi Starmex air conditioners are reset with these steps:

  • Turn off the on/off switch

  • Turn the breaker to the outdoor unit off

  • Wait for about half a minute

  • Turn the breaker back on 

  • Turn the air conditioner back on 

How Do I Find My Mitsubishi Error Code? 

Checking the error code can be a way to help you check the exact issue. You may refer to the list of codes from the manufacturer directly or use your air conditioner’s remote control to do so. 


It’s not always a cause for alarm even if you see that your Mitsubishi Starmex air conditioner is malfunctioning. You can also check the error codes when the aircon light is blinking to help you identify the reason for the fault. 

There are many reasons why an air conditioner experiences problems, but most of the time, the problem is not serious, especially if your air conditioner is new. Remember to enlist the help of an air conditioner expert if you’re unsure about how to fix the fault. 

Saving the fees on hiring a professional may end up costing you more if anything happens, or if the problem worsens.

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