If your Mitsubishi aircon light is blinking continuously, then this is a sign that there’s an error, fault, or malfunction inside your unit. These blinking lights will often indicate what kind of issue you’re dealing with, which is why it’s important to understand the meaning behind each blinking pattern. Not only will this help you correctly diagnose the issue, but it’ll also make troubleshooting that much easier.
Why is My Mitsubishi Aircon Light Blinking?
There are many reasons why the light on your Mitsubishi air conditioner is blinking. Here are some of the most common ones, as well as what you can do to troubleshoot the issue.
Power Supply and Other Electrical Issues
Your Mitsubishi air conditioner light may be blinking continuously due to issues with the power supply or some other electrical component in your unit. This includes insufficient power, improper connections, or faulty electrical parts. The first thing you should always do is to make sure that your air conditioner is properly connected to a sufficient and reliable supply of power, as well as check for faulty wiring and electrical parts, such as sensors.
Control Board Malfunction
A faulty control board can negatively affect the operation of your air conditioner and lead to blinking lights. If you feel like this is the cause, then you can reset your AC unit, making sure to turn it off and disconnect it from the power supply before turning it back on after a few minutes. If this doesn’t help, then you may need to have your unit inspected by a professional technician or electrician.
Incorrect Timer Settings
Another reason why your Mitsubishi air conditioner may be blinking is because of poorly configured timer settings, so make sure to check these settings and make sure that they’re set properly. Make the necessary adjustments to make sure that they’re aligned with your preferences.
Low Refrigerant Levels
If your air conditioner is running low on refrigerant, then this may be causing the lights on your unit to blink continuously. Refrigerant is a substance that plays a crucial role in the overall cooling process, and your unit won’t be able to work properly if it's running low. It’s best to have your refrigerant checked and refilled by a professional HVAC technician. It’s also worth making sure that you don’t have a refrigerant leak on your hands.
Compromised Air Circulation
If the air isn’t flowing properly throughout your air conditioner, it can trigger the unit’s lights to start blinking as a way to tell you that something’s wrong. Here are a few things that can compromise the air circulation in your AC, as well as what to do:
- A dirty or blocked air filter is the most common reason for compromised airflow in your unit. This is caused by a buildup of dust, dirt, and debris on the filter, so take it out and vacuum away the debris before washing it in some soapy water. Let it dry before putting it back inside.
- Obstructed vents can also be a culprit, so make sure that the vents and vanes of your AC are open during the unit’s operation. Additionally, make sure that the vents automatically open when you turn your AC on, which is something that should happen for split-system and portable air conditioners.
- Dirty coils can also negatively affect the airflow in your Mitsubishi air conditioner. After locating the coils of your unit, brush away any debris with a soft brush before gently spraying a coil cleaner. Let it sit for the recommended time before rinsing it with some water, making sure to avoid wetting any electrical components.
- If your air conditioner has an outdoor unit, then there could be debris and other obstructions stuck to it, preventing your air conditioner from working properly. Every once in a while, make sure to check and clear away any branches, twigs, or leaves that may have stuck.
If your Mitsubishi Starmex isn’t working properly, then check out our article How to Troubleshoot Mitsubishi Starmex Aircon!
How to Fix Mitsubishi Aircon Light Blinking Continuously?
The most helpful thing you can do is to check the light pattern and figure out the cause behind the continuous blinking. You can refer to our list as a guide, or check the user manual of your aircon unit for more information.
If you’re looking for additional references, then feel free to visit these websites to learn more about why your Mitsubishi AC’s light is blinking:
While the issues that trigger your Mitsubishi air conditioner’s lights to blink are too complicated for you to solve on your own, there are plenty of professional aircon servicing and repair companies that can take care of the job for you. The professionals in these companies are well-equipped to figure out the cause of the issue and make the proper recommendations to fix it, so book an appointment with an HVAC technician today!
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