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Basic error codes of Ballu air conditioners

In the operation of modern air conditioners, errors occur for a reason: in most cases, they signal the presence of a problem that needs to be solved as soon as possible to avoid major problems. It is for this reason that we recommend that you read the list of the main error codes of Ballu air conditioners in order to detect the fault in time and call the master.

Some craftsmen prefer to perform repairs on their own, without resorting to the help of a specialist. We do not recommend saving on the services of a service center. Improperly performed repairs can lead to bad consequences, which will reduce the service life of the air conditioner. And a professional repairman has not only the skills and tools, but also invaluable experience. Believe me, masters often face similar problems and know in advance what to do in a particular situation.

Below is a list of the main errors. The codes may differ depending on the model and year of manufacture of the air conditioner. Therefore, this list is hardly universal. But here are the most common transcripts. In the comments below, you can add your own transcripts to our list.

Major errors

MDV Air Conditioner Error Codes

The errors listed below are displayed directly on the air conditioner display. They are hard to miss. Errors of this kind are easy to decipher, even the user can handle it, not to mention the master from the service center.

E0

Error E0 indicates a failure in the operation of the volatile memory located in the internal unit of the air conditioner.

E1

The air temperature sensor located in the outdoor unit has failed.

E2

The air temperature sensor located in the indoor unit has failed.

E3

The temperature sensor responsible for measuring the temperature of the condenser has failed.

E4

Error E4 also signals a malfunction of the temperature sensor, but it is responsible for measuring the parameters of the evaporator.

E5

There was a failure in the operation of the outdoor unit, protection is enabled.

E6

There was a failure in the operation of the outdoor unit, protection is enabled. Probably, the fan motor located in the internal unit of the split system is faulty.

E8

The electrostatic filter is too dirty and needs to be replaced.

E9

Error E9 indicates that there was a failure in the operation of the device, so the system prevented the possible supply of cold air in the «HEAT» mode.

P4

The compressor turned off because the temperature sensor detected an increased or, conversely, a reduced temperature at the evaporator.

P5

The compressor turned off because the temperature sensor detected an increased or, conversely, a reduced temperature at the condenser.

P6

The defrost mode has been activated.

EA

The volatile memory module is faulty, or the system needs to be flashed. Also, a replacement ROM is probably required.

EC

There was a freon leak. Diagnostics and possibly refueling are required.

F1

Error F1 indicates a failure in the operation of the thermal sensor that measures the parameters of the evaporator.

Additional errors

Some additional errors can be detected by the flickering of the indicator lights. Also, in some devices, errors are not displayed in the form of codes, but are shown exclusively with the help of a light indication.

★ — burns constantly

* — flickers

Description Indicator
High Power Operation Timer Power
The air temperature sensor is faulty *
The air temperature sensor *
The evaporator is frozen * *
Power failure * *
The compressor is overloaded * * *
Fan motor malfunction *
ROM (volatile memory) failure * * *
Description Indicator
Timer LED Blue LED Red LED Power LED
The air temperature sensor is faulty *
The evaporator temperature sensor is faulty *
The evaporator is frozen * *
The evaporator is overheated *
Connection lost between the outdoor and indoor units * *
Power failure * *
Compressor is overloaded * * *
Fan motor malfunction *
The air temperature sensor in the outdoor unit is faulty
The capacitor temperature sensor is faulty
The system is overloaded
Compressor malfunction
Low/high supply voltage
Outdoor unit overloaded in cooling mode
Defrost enabled
The inverter module has failed
Failure of the ROM (volatile memory) in the outdoor unit

Error code Indicator Problem description Fault cause
Power Operation Timer High power
1 The outdoor ambient temperature sensor is faulty Thermistor short-circuited or open
2 External temperature sensor faulty heat exchanger Thermistor short-circuited or open
3 The compressor is overheated The thermistor is short-circuited or open, or the compressor is overheated
4 The external capillary tube is faulty The thermistor is short-circuited or open
5 The external capillary temperature sensor is faulty The thermistor is short-circuited or open
6 Overcurrent Too much electric current in the outdoor unit
7 The compressor does not turn on The compressor is not connected or the module is damaged
8 Supply voltage is excessive/insufficient
9 Supply voltage excessive / insufficient
12 IPM power module malfunction
13 EEPROM malfunction
14 Outdoor temperature sensor is faulty

As you can see, the list of errors is big. And it is simply impossible to decipher the flicker at a cursory glance. Therefore, you should not trust such work to a beginner or perform repairs with your own hands. If your air conditioner signals an error with light indicators, it is better to call a major service center and report the problem. They will provide an experienced specialist and give a guarantee for the work performed.

Results

These are the main errors encountered in the operation of air conditioners from the Ballu brand. We have listed only the most common transcripts. The codes can be deciphered in different ways, depending on the model of the air conditioner and other factors. In some models, errors are displayed simply as numbers, without letters. And in some air conditioners only in the form of a light indication.

If you are a user and you managed to decipher the error code, we still do not recommend that you repair the air conditioner at home. This requires not only knowledge and practical skills, but also professional tools. Including for performing diagnostics. And the quality of subsequent repairs largely depends on a well-performed diagnosis. After all, if you incorrectly determine the cause of the failure, the repair can only harm.

It is better to entrust the repair work to a specialist from a service center or a private master whom you trust. If you choose a repairman yourself, ask if he has any work experience. A professional has never encountered various breakdowns, he will be able to quickly carry out diagnostics and repairs. Of course, there are exceptions to the rule, when the failure is rare and difficult to eliminate. But in most cases, experienced craftsmen are faced with typical cases.

Any other questions? Ask them in the comments below. If you have experience in deciphering codes and troubleshooting, share it. Also tell us about your experience in repairing climate equipment, give some useful tips for craftsmen and users. Read other articles on our site, leave your opinion. Good luck!

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