Why Is Mitsubishi Electric Air Conditioner Blinking Green Light? How to Fix it?

Notice the Mitsubishi Electric Air Conditioner blinking green light? A Mitsubishi AC has different LED lights which indicate the different status of the AC, whether it is working fine or throwing some issue. If you are constantly seeing a blinking green light on your Mitsubishi Air Conditioner then that means there can be some issue with the AC and if not fixed it can cause some serious problems.

But how do I know what is causing this blinking green light on Mitsubishi? The blinking green light can indicate different problems with the Mitsubishi AC. In this article, we will be discussing what can cause Mitsubishi Electric Air Conditioner blinking green light as well as the fixes to the problem. 

Reasons Behind Mitsubishi Electric Air Conditioner Blinking Green Light

mitsubishi air conditioner blinking green light
mitsubishi air conditioner blinking green light

There can be several reasons that can cause the blinking green light on a Mitsubishi Electric Air Conditioner, such as

1. Over Voltage

The first reason behind the Mitsubishi electric air conditioner blinking green light can be overvoltage. Mitsubishi ACs are smart and have an automatic protective mechanism. This means the AC will shut down automatically if any over-voltage or power surge is detected. This protects your device from any fault due to power insurgency. This doesn’t mean the AC has broken down and needs repair. 

2. Multi Split Setting Fault

Another reason causing the blinking red light issue on the Mitsubishi AC is the multi-split setting fault. This generally happens when you have multiple AC units inside and one unit outside. This can cause an imbalance between the AC causing all the other ACs to not function properly and do the opposite of what they should be doing. 

3. Damaged Power Cable

If you are seeing a blinking green light, then that can also mean the power cable of the AC is damaged. A damaged power cable may not send the sufficient electricity required by the AC to work properly and it may start showing a blinking green light. 

4. Low Refrigerant

You can also start facing this blinking green light issue on your Mitsubishi AC if it is running low on refrigerant. The refrigerant in the ACs needs to be refilled and if your AC is running low on the refrigerant it will give you a warning sign by showing the blinking green light. If the refrigerant was recently refilled in the AC but you are still seeing the blinking green light on the AC then that could indicate refrigerant leakage. 

5. Clogged Air Filter

Another possible reason behind facing the blinking green light issue on the Mitsubishi electric air conditioner can be the clogged air filter. If the air filter has some dirt stuck because of which it cannot blow clean air, then it will start showing the green blinking light. It is common for an AC to show a blinking green light due to a clogged air filter if the AC isn’t cleaned for a long duration. 

6. Electric Fault

If there’s some electric fault in your AC and your AC is not able to get the power properly then this can also lead to the blinking green light. This is generally caused when the power cord is damaged or when there’s some internal electric fault in the AC. 

7. Failing Compressor

Is your AC compressor failing? This could be another reason for your AC to be showing blinking green lights. The compressor can fail due to electric failure or when it wears out because of age. 

8. Something Stuck in Fan

If dirt and debris are stuck in the fan then that can also cause this issue. Dirt and debris can obstruct the fan from working properly and not blow clean and cool air. 

Fix Mitsubishi Electric Air Conditioner Blinking Green Light

Nothing to worry about if you are stuck with the blinking green light on your Mitsubishi Electric Air Conditioner. Given below are a few fixes that you can try to fix Mitsubishi Electric Air Conditioner Blinking Green Light issue-

1. Reset your AC

In general, the green blinking light issue on the Mitsubishi AC can easily be fixed by resetting the AC especially if the issue was due to overvoltage. There are two ways to reset the AC, and the first one is-

  1. Firstly, power off the isolator. Also, unplug the AC from the power source. 
  2. Wait for 20-30 seconds before you power on the isolator and the AC.
  3. Turn on the isolator after 20-30 seconds, and also connect the AC to the power source and turn it on. 

Another way to reset the Mitsubishi AC is-

  1. Ensure your AC is turned on. 
  2. Press and hold the Power button on your AC’s remote for 5-10 seconds and this will reset the AC. 

Note- If there’s a Reset button on the AC remote then press that instead of the Power button. 

2. Check the Fan

If resetting the AC didn’t work then probably you should check the fan of your AC, whether something is stuck in between the fan. It is common to face this issue due to dirt obstructing the AC fan. Check the AC fan and clean the dirt that can obstruct the airflow. 

3. Check for Damaged Power Cord

As we have already discussed above, the issue can be due to the damaged power cord. Check whether the cord has any physical damage or signs of twisting and turning. If there is any physical damage then replace the cable. 

In case you don’t see any physical damage but suspect the power cord to be faulty then you can get a multimeter to test the cable. If you don’t see continuity in the results then there’s some issue with the power cord. 

4. Check for Clogged Air Filter

The issue can be caused by to clogged air filter. Check if any dirt is clogging up the air filter or not. Clean the air filter with a brush for dirt. If you haven’t replaced the air filter for a very long time then you will have to replace it. It is recommended to replace the air filter once a year of the usage. 

5. Get Technician’s Help

There can be other issues that can cause Mitsubishi’s electric air conditioner to blink a green light issue, such as electric fault, multi-split settings fault, low refrigerant, failing compressor, etc. If the issue was not fixed by following the previous steps, then you will have to get a technician’s help. 

Get a trusted technician to help you with it. The technician will inspect your AC for the fault and will fix the issue. If some part needs to be repaired, then the technician will tell you about that too. 

If you have been stuck with this issue for a very long time and nothing seems to fix the issue, then it is recommended to get a technician to fix it as soon as possible. If not fixed, this can cause severe issues with the AC in the long term. 

Bottom Line

Stuck with the Mitsubishi Electric Air Conditioner blinking green light issue. This issue can be caused due to a lot of reasons like clogged air filters, electric faults over-voltage, etc. You can follow the above steps to fix the blinking green light issue on your Mitsubishi AC. 

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