Lessar air conditioner errors: identifying breakdowns by code and instructing how to fix problems

Choosing air conditioners with a troubleshooting function

Many manufacturers add a self-diagnostic breakdown mode to the list of supported functions of their air conditioners.

In turn, we can recommend paying attention to the device models in which this function is implemented most fully:

Model name	Model photo	Characteristics
General Climate GC/GU-A12HR		Cold power (kW): 3.55 Heat power (kW): 3.81 Power consumption (kW): 1.12 Air exchange (m.cub./hour): 550 Noise level (dB): 33 Internal dimensions (WxHxD) : 773x250x188 External dimensions (WxHxD): 776x540x320 Room area (sq.m.): 35
Hyundai HSH-P091NDC/HRH-P091NDC		Cold power (kW): 2.6 Heat power (kW): 2.6 Power consumption (kW): 0.81 Air exchange (m.cub./hour): 528 Noise level (dB): 25 Internal dimensions (WxHxD) : 750x250x190 External dimensions (WxHxD): 715x482x240 Room area (sq.m.): 26 Remote control: Yes
Electrolux EACS-09HN/N3		Cold power (kW): 2.6 Heat power (kW): 2.8 Power consumption (kW): 0.82 Air exchange (m.cub./hour): 480 Noise level (dB): 32 Internal dimensions (WxHxD) : 750x250x190 External dimensions (WxHxD): 715x482x240 Room area (sq.m.): 26

General Climate GC/GU-A12HR

The General Climate GC/GU-A12HR air conditioner supports automatic system diagnostics, while the test results are displayed on the built-in LED display. Having a table of error codes, an experienced master will be able to quickly identify a breakdown and immediately begin to fix it.

Hyundai HSH-P091NDC/HRH-P091NDC

inverter split system Hyundai HSH-P091NDC/HRH-P091NDC is also capable of detecting possible errors in operation, signaling this to the user. In addition, the air conditioner is able to carry out some self-service operations by itself, for example, by activating the self-cleaning mode, or by switching to the automatic defrosting mode.

Electrolux EACS-09HN/N3

Another interesting option is the Electrolux EACS-09HN/N3 air conditioner of the NORDIC series. The product is remarkable in that after the power supply is restored, it not only performs automatic self-diagnosis of the system, but also completely restores all user settings, continuing to work in the specified mode. If a malfunction is detected, the air conditioner will signal this to the user on a special display panel.

Features of the self-diagnosis

If a breakdown, failure in the electronics is detected, the Lessar climate unit diagnostic system issues an error code on the front of the indoor unit panel or on the control panel. The fault code is a letter on the screen and a combination of LEDs that flash in a certain order.

The error indication and the alphanumeric code are displayed until the malfunction of the system is completely eliminated.

All models of Lessar equipment are subject to some breakdowns in cases of improper installation and operation. To do this, each model of the air conditioner is equipped with an auto-detection of errors for the subsequent elimination of identified malfunctions.

If the split system is not functioning properly, you need to pay attention to the display. There is a device error displayed.

Thanks to their presence, the user will be able to independently identify the cause of the malfunction and, if possible, eliminate it. In the event of a complex violation, you will need to contact the service center for help.

For independent troubleshooting, it is necessary to understand in more detail the design features of climatic equipment.

Household (wall-mounted, multi-split systems) and semi-industrial (cassette, floor-ceiling, channel, column type) systems consist of two parts, which are interconnected by a freon route - an indoor and outdoor compressor and condenser unit.

The air conditioning line connects the blocks to each other and consists of a signal and connecting power cable, copper tubes for the passage of freon and a drainage tube for draining liquid from the room.To protect against environmental factors, the track is placed in a durable PVC tube

The design of the indoor evaporative unit consists of a network cable, a front panel, filter elements, shutters, an evaporator, a fan, a drip tray for accumulated condensate, and a control board.

The components of the external unit of the split system are: compressor, 4-way valve, condenser temperature sensor, capillary tube, filter, control board, fan. More powerful air conditioners - 36-60 thousand BTU - are additionally equipped with a high and low pressure switch, a silencer, various filters, an accumulator, an air temperature sensor.

After getting acquainted with the scheme of the air conditioning system, the user will be able to identify a breakdown, change and even repair a part or mechanism that has failed.

Features of AUX brand air conditioners

Aux split systems, which consumers usually encounter, belong to semi-industrial and household models. Industrial air conditioners are installed mainly at large industrial enterprises.

In the domestic and semi-industrial segment of climate control equipment, the most diverse equipment in terms of type and technology is presented. The company produces conventional and inverter installations. The range includes wall and cassette split systems, mobile floor models, etc..

Wall systems are usually installed in private houses and apartments, and cassette air conditioners are mounted in office, commercial and industrial premises. The quality of AUX air conditioners is highly dependent on OEMs. It is better to take Aux equipment in specialized firms.In such companies, it is more likely to buy high-quality equipment.

Aux air conditioners are represented by several series: FJ, Legend Standart (LS), LS Inverter, Legend Design Inverter and Legend Exlusive Inverter. They are designed for different areas of the refrigerated premises. In addition to models with a basic set of functions, there are upgraded versions.

All AUX brand air conditioners are distinguished by their attractive design, versatility and low price, and therefore are popular in the market.

Split systems of all AUX series are designed for cooling, heating, dehumidification and ventilation of the room. The cooling function can operate at temperatures from +15 to +43 degrees, and the heating function - above 0.

It is impossible to start a split system at lower temperatures without additional technical training. The operation of climate equipment at low temperatures can lead to its breakdown. Also, air conditioning in heating mode is not considered an alternative to heating.

Before starting the air conditioner, you need to check the air temperature in the room and only then turn on this device in the network

There are many varieties of Aux split systems. In terms of functionality, models of air conditioners with a similar abbreviation differ little from each other. Their main differences are in appearance, additional features and power.

Main product lines

Semi-industrial are positioned for use in offices, business centers, small industrial premises, public institutions, etc. Those. where the volume of premises is larger or it is required to remove excess industrial heat. They are distinguished by greater power, diversity (split systems, channel, multi-zone systems, monoblock, etc.).Such equipment is designed for continuous operation, therefore it has increased wear resistance and resistance to failures. For the same reason, components are used from trusted brands. Compressor blocks depending on the power of the model: in conventional circuits - DAIKIN, SANYO, in inverter - Mitsubishi Electric.

Household air conditioning systems are designed for use in apartments, private houses, small rooms. With the exception of a few models, all equipment is designed to maintain a microclimate in one room. Components are predominantly made in China: either of their own design - Gree, or copies of well-known brands - HIGHLY (Chinese HITACHI), Qingan (Chinese DAIKIN), GMCC (Chinese Toshiba).

Household air conditioning systems

• Window, monoblock. Series Ant. Rooms of small volume, up to 20 sq.m. Mounted directly on the window. Ease of air conditioning installation and maintenance (does not require the involvement of specialists). Supports three modes of operation: ventilation, cooling and dehumidification;
• Single split systems. Triton series. Premises up to 70 sq.m. The control system automatically defrosts, cleans the heat exchanger, performs self-diagnostics and issues error codes. Wi-Fi control possible. Irbis series. Premises up to 70 sq.m. The models are made in an elegant style, air ionizers, carbon filters, antibacterial filters have been added. The air blowing system has been worked out for better mixing of air masses and uniform cooling of the entire room;
• Single inverter split systems. Falcon series. Smooth climate control and best energy saving performance. The area of ​​standard premises is up to 50 sq.m.Air ionizer and biological filter system (silver-ion, lithium-enzyme). Air flow control to the location of the control panel;
• Dual zone split systems. Crab series. Two indoor units are connected to one outdoor cooler. The indoor units are independent and can be set to different modes in different rooms. Effective total area up to 60 - 70 sq.m. (30 - 40 sq.m. each room).

Air Conditioner Diagnosis Sequence

Air conditioner error codes are a universal mechanism, thanks to which the cooling device literally “speaks” about the problems that have arisen. Devices of the old generation after breakdowns stayed in the repair shop for weeks, or even months. A modern, innovative approach to repairing air conditioners of any capacity allows for repair work at the installation site of the unit, without its long-term removal. Stationary activities do not take more than a day, which greatly simplifies the dismantling and reinstallation of the cooling mechanism.

During the initial diagnosis, an experienced craftsman or a smart owner should take consistent, simple steps:

1. The device, disconnected from the power supply, is inspected for external damage. The cable connecting the air conditioner to the network is checked. The hydraulic components of the device are examined.
2. The fasteners responsible for the correct position of the air conditioning device are checked. Indoor units are amenable to closer inspection.
3. Detailed study lends itself to parts that filter the air entering the device.
4. The air conditioner is connected to the network, and then smoothly tested in the "cold" and "heat" modes. For such purposes, use the control panel (supplied with the unit).
5. Switches are checked that allow you to use all modes of air conditioners without a hitch.
6. Blinds are inspected, if necessary, parts are cleaned of dust and accumulated dirt.
7. The work of the evaporation system is viewed.
8. Finally, you should check the connection of all blocks.
9. Drainage inspection is the last step in diagnosing a faulty device.

Self-regulating systems, modern air conditioners with sensors that allow you to see error code when initial testing of a faulty device are also amenable to external inspection. The definition of a problem that has arisen inside or outside of a complex structure is not always clear if one proceeds only from electronic codes. Several problems hidden among themselves can be detected only with an integrated approach to determining the breakdown.

Testing the air conditioner is carried out in the "cold" and "heat" modes

Self-diagnosis system for Electrolux air conditioners

Structurally, air conditioners are quite complex devices. Inside the blocks are refrigeration circuits, control boards, various sensors, valves, power inverters and other parts.

The self-diagnosis system, a service system, refers to a type of software, is designed to report on the incorrect operation of individual elements and units of equipment. It is introduced into the control unit by the “firmware” method.

The abundance of device components provoked the development of a self-diagnosis system for devices, which detects errors in operation and displays them in the form of codes.

An alphanumeric message may indicate that the device has not been installed correctly, that it needs to be cleaned or refilled.

It also happens that the main working units fail or replacement of worn parts is needed.

But depending on the complexity of the split system, the number of controlled functions, deciphering the code designations takes one or more printed pages. Each series of devices of the company can have its own "firmware".

The malfunction is determined by comparing the error code with the table, which is presented in the instructions for a particular model or on the official website of the manufacturer

To activate the self-diagnosis process, press TEMP and MODE simultaneously on the remote control.

If you only need maintenance and cleaning without dismantling to fix the problem, you can handle it yourself. Complicated breakdowns, when removal, disassembly of the device and replacement of parts are required, it is better to entrust the master.

Sometimes you may encounter multiple errors in the operation of Electrolux air conditioners. In such cases, codes of serious breakdowns are determined, and as they are eliminated, other error messages may appear.

A number of simple operations the user can perform himself:

• clean and replace filters;
• unlock the blinds by removing foreign objects;
• restore normal power supply.

The participation of a certified specialist requires a refrigerant leak, a breakdown of the compressor, electric motor, electronic control system.

Diagnosis of an air conditioner malfunction

Brought to automatism, a high-quality modern air conditioner saves a person from unnecessary checks or planned cleanings.Air conditioning unit with built-in powerful processors allows you to extend its service life with minimal cost of expensive repairs. Air conditioner error codes are created for the convenience of users and for the slightest problems that have arisen in any part of the air cooler. Repair of the device will be much faster if the cause of the problem is determined accurately. How not to get confused in complex designations in case of failures in the operation of air conditioners of any capacity?

The correct “diagnosis” of the device is half the successful repair of an expensive unit. A complex system, such as an air conditioner, cannot work forever and over time the most sensitive parts of the mechanism fail. A malfunction is preceded by a reduced amount of refrigerant or a breakdown of the nodes that provide the entire device with energy. The type of malfunction is not so important if it is determined quickly and correctly - subsequent repairs will take place without difficulties or hitches.

The house, office building needs air conditioning, so the time spent on diagnosing a breakdown is of particular importance. In summer, a cooling device is simply indispensable in closed rooms or offices. A significant saving of precious time will be the operational work of the master who came to the call. A specialist with many years of experience in working with error codes will determine the cause of failures in a matter of minutes.

Air conditioner diagnostics - the first step in troubleshooting

Conclusions and useful videos on the topic

The video tells that the cause of the E101 error was the appearance of a microcrack on the printed circuit board in the street block:

The video shows the cleaning of the outdoor unit of the air conditioner with its dismantling:

As you can see, thanks to the advanced diagnostics and fault indication system, you can independently determine the cause of the failure of the Samsung air conditioner. The first thing to do is to disconnect the split system from the electrical network for 30 seconds to reset the errors.

Also, before turning on the device again, it is better to make sure that the outdoor unit has no mechanical damage. To identify and eliminate more serious malfunctions, you will need to have at hand the decoding of error codes and the necessary tool. And some errors require a mandatory call to the service.

Want to talk about your own experience in identifying the failure of your own split system? Do you have any technological nuances that are worth sharing with site visitors? Please write comments in the block form below, post pictures and ask questions on the topic of the article.