How To Reset Mitsubishi Air Conditioner [5 Simple Ways]

By now you must be familiar with the situations that require a reset. Frankly speaking, if you are one of the users that don’t know How To Reset Mitsubishi Air Conditioner then it is going to be costly for you. To target Mitsubishi air conditioners, it is a must for you to have a reset-knowledge. You wouldn’t know its importance now but as you witness certain errors, this information will start becoming handy.

There are some common situations that might demand an immediate reset. The situations are:

  •       Power outage
  •       Malfunctioning unit
  •       Tripped breaker
  •       Display of unknown error codes

Resetting Mitsubishi Air Conditioner A quick Overview

Getting into details might be hectic for you especially if you have no interest in such things. For your ease, we will be informing you about the easiest reset methods.

The very first thing that you can consider doing is unplugging the air conditioner, either manually or through circuit breaker the choice is entirely yours.

Another way is to reset the thermostat using the “Reset” button. This button is present at two different positions, one on the indoor unit and second on the remote control. Consider pressing the button that suits your convenience.

Earlier, we have given you the overview of the situations that might require a reset. But that’s not it. There are some other situations as well that might be the culprit in their nature. Meaning, they don’t come upfront but they do exist. Knowing about these situations is really important as you might come across one.

For now, we will be discussing the previously mentioned situations in detail.

Resetting Mitsubishi Air Conditioner A quick Overview
Resetting Mitsubishi Air Conditioner A quick Overview

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When To Reset Mitsubishi Air Conditioner?

Circumstances that require Mitsubishi air conditioner reset are as follows.

  • Power outage

In case of a power outage, the protective mechanism that will protect your unit from damage is the circuit breaker. This will automatically trip as soon as the power comes back after a power outage. Reason being, it wants to protect the unit from power-overload. You might want to turn it back on again after such an outage.

  • Error code

If you are witnessing weird error codes on your AC unit then resetting it might do the trick. Although the probability of all errors vanishing is less, it will surely get rid of the error codes like E9 – 6841 and E6 – 6840.

Both of these codes indicate the transmission errors but the former one involves controller board while the latter one involves the indoor and outdoor units. Get rid of them by a simple reset.

  • Faulty remote control

There might be a situation when your AC stops responding to the remote control. Of course, the first thing that might pop up in your head would be to replace the batteries. If the issue still exists then try resetting the Air Conditioner.

When To Reset Mitsubishi Air Conditioner?
When To Reset Mitsubishi Air Conditioner?

How to Reset Mitsubishi Air Conditioner?

After figuring out when to reset the Mitsubishi air conditioner, now is the time to know how to reset it. There are five easy methods to follow.

  1. Hard reset

To perform a hard reset, you will need to follow the below-mentioned steps.

  •       Keep the AC power supply and outdoor unit turned OFF
  •       Unplug the power cord of your AC and wait for 60 seconds
  •       Plug back the power cord
  •       Take your remote control and turn ON the AC unit
  1. Reset using a remote

Suppose your area has recently experienced a power outage and right after it your AC unit won’t start. In this case you need to perform a reset by following the below steps.

  • Search for the isolator switch and turn it OFF
  • Right after waiting for 30 minutes, turn ON the isolator switch again
  • Take your remote control and press the power switch. It will turn ON your AC

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  1. Reset using a circuit breaker

In the previous method we have mentioned the use of an isolator switch. Unfortunately, if you are unable to find it then we recommend you to go to the breaker box. Over there you will come across a circuit breaker.

  • Turn OFF the circuit breaker
  • Wait for about 30 minutes
  • Turn ON the breaker
  • Use the remote control to turn ON the AC
  1. Factory reset

If the simple resets didn’t prove to be helpful for you then try to perform a factory reset. Performing this reset will not only clear the error codes but it will also resolve any underlying issues. This reset can be done in two ways.

1st option

  • Search for the power breaker and turn it OFF
  • Wait for .5 or 1 minute
  • Adjust the settings according to your requirements and check the working of AC

2nd option:

  • You might be familiar with the condenser’s power supply, switch it OFF
  • Turn OFF the breaker box as well
  • Now unplug the power cord and wait for 30 minutes
  • Turn ON the breaker
  • Set the thermostat setting to “cool”
  1. Reset button

If the Mitsubishi air conditioner has the reset button then you can use it. You just need to keep it pressed for 3 – 5 seconds and then see the reset magic. Don’t worry about the location of this button as it is easily detectable.

How to Reset Mitsubishi Air Conditioner?
How to Reset Mitsubishi Air Conditioner?

Is There Any Way to Reset the Mitsubishi Air Conditioner Remote Control?

If your AC’s remote control becomes unresponsive then you can even reset it. Yes, you have heard it right! After resetting your AC unit, it is now time to reset your remote control. But before performing a reset, try replacing the batteries. It could be a possibility that the batteries have gone faulty and need a replacement.

After a replacement, if the issue still exists then you can jump onto the resetting.

  • Keep pressing the power button present on your remote control for at least 3 – 5 seconds


  • Keep pressing the reset button present on your remote control for at least 3 – 5 seconds


  • Remove the batteries of the remote control and wait for 15 minutes
  • Put them back and try to access it

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I Can’t Reset My Mitsubishi Air Conditioner, why?

All the reset techniques which are mentioned above are not guaranteed to actually perform a successful reset. Sometimes the steps that you are carrying out are correct but there is no guarantee that the reset will take place. It is a common issue.

Don’t worry as we have you covered! Before jumping on to the expensive fixes, we recommend you to inspect the air filters. Clogged or filthy air filters can prevent your air conditioner from providing sufficient cooling and perform a reset.

If the air filters have completed their duration i.e. 6 months then don’t think about anything and just make a quick replacement. Even after all this if you still cannot reset your AC then call an expert or technician.

How to reset Mitsubishi mini-split AC?

If you own a Mitsubishi mini-split AC and want to perform a reset then it is an easy process to follow. Just press the “Reset” button that is present at the bottom of the unit. Also check the breaker, in case it has been tripped flip it back and check for the correct working.

Why does my Mitsubishi air conditioner blink green light?

The blinking of a green light on your Mitsubishi air conditioner is an indication of some fault. However, the protective mechanism in your AC protects the unit from overpower. So if a green light blinks, it most likely means that the unit is experiencing an over-voltage.

Now you must be wondering what to do. Well, in this case you don’t have to do anything as the AC will shut down itself. Other potential reasons could be a faulty power cord, refrigerant leak or a stuck fan. You need to call a technician in this case.

Frequently Asked Questions:

How to reset my Mitsubishi air conditioner’s remote control?

You first need to remove the batteries and wait for 15 minutes. Place back the batteries and check the correct working. Moreover, you can press the power/reset button present on the remote for 3 – 5 seconds and release it afterwards.

Does Mitsubishi Air Conditioner Remotes Have a Reset Button?

Yes, you can find a reset button on your Mitsubishi air conditioner. Just look at every possible place and you will find one.

How to Reset a Mitsubishi Mini-Split AC?

To reset a Mitsubishi mini-split AC keep pressing the reset button for 3 – 5 seconds and then turn it back on.

Ending Thoughts:

All in all, resetting a Mitsubishi air conditioner doesn’t require much effort. You can easily do it. However, some situations might require you to call a technician because it involves electrical work. Now it is up to you how to make things work in the best possible way.

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