Decryption and troubleshooting of Mitsubishi air conditioners by error codes

Climate systems fill our lives with coziness and comfort, however, due to a number of factors, equipment can fail, no matter how high-quality it may be. But manufacturing plants, which care about their image, have developed and implemented in their equipment a rather complex, and at the same time effective diagnostic system - error codes for Mitsubishi air conditioners.

Thanks to this system, you can not only determine the error, but, in some cases, eliminate it yourself.

Below is a complete list of faults, i.e. Error codes for mitsubishi air conditioners.

mitsubishi air conditioner error codes
mitsubishi air conditioner error codes

Possible Mitsubishi Air Conditioner Errors

Mitsubishi conventional air conditioning
Mitsubishi conventional air conditioning

The timer lamp is constantly on while “Run” is blinking:

  • 1 time - in this case, the heat exchanger sensor is faulty;
  • 2 times - the room temperature sensor has broken;
  • 6 times - something is wrong with the fan motor of the indoor unit.

Next, consider the mitsubishi air conditioning error code, in which the “Run” signal flashes constantly, and the timer:

  • 1 time - it is worth checking the outdoor temperature sensor;
  • 2 times - the heat exchanger sensor of the external unit is faulty;
  • 6 times - look at the temperature sensor of the output tube.

The following mitsubishi air conditioner error is recognized based on the combinations of blinking timer lights and the “Run” indicator constantly on:

  • “Timer” flashes 2 times - something happened to the external unit;
  • “Timer” flashes 5 times - the compressor has overheated;
  • “Timer” blinks 6 times - a signal transmission error has occurred.

Climate system troubleshooting

In general, these air conditioners are not afraid of sudden voltage drops, the maximum that can happen is that the fuse blows or the control board of the indoor unit fuses (mitsubishi air conditioning error code is a signal transmission error). To eliminate such a nuisance, you can only replace the damaged parts.

If the error codes of Mitsubishi air conditioners indicate a malfunction of any sensor, then it is better not to risk it and not try to repair the unit yourself, contact a service center.

A malfunction of the motor of the indoor unit is extremely rare, since usually their resource exceeds the resource of the air conditioner several times. But, if nevertheless a similar situation takes place, then the motor needs to be replaced.

A mitsubishi air conditioner error indicating a malfunction of the external unit (it includes: a cooling fan, directional valve and compressor), most likely you will have to replace the entire unit. By the way, it is the external unit that is the most unprotected part of the entire unit.

Thus, you can independently identify the errors of Mitsubishi air conditioners, however, as for the maintenance and repair of the entire system, it is better to trust the professionals.

The only thing that can be done on its own is to clean the filters located in the indoor unit.

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