DIY lg air conditioner repair

In detail: lg air conditioner do-it-yourself repair from a real master for the site my.housecope.com.

We are all happy when buying a new thing, especially new equipment. The availability of household appliances determines how comfortable we will feel in our own home. But when purchasing equipment, we do not know how long it will last. The service life does not always depend on the original characteristics of the device and on the quality of its assembly at the factory. The duration of the productive use of equipment is largely influenced by external factors during its operation, how well it is handled and looked after. The new climate regulator is a joy in the house, but in order to fully enjoy its work, you also need to know how to properly repair the air conditioner with your own hands. The services of professionals, unfortunately, are not cheap.

Is it possible to repair such complex equipment as an air conditioner on your own without the presence of specialists? This question is of interest to many. Let's try to give a detailed answer to it. But first, you need to find out what types of problems are with climate systems.

Here are the most common problems that arise during the operation of air conditioning equipment, and as a result of which it may be necessary to repair the air conditioner in the apartment:

Decreased production of heat or cold;
Condensate leakage due to clogged drainage;
The equipment does not turn on and does not react in any way to commands from the control panel;
The appearance of an unpleasant odor from a working device.

In the first case, it turns out that the air conditioner consumes electricity in vain, giving nothing in return. He does not cope with his main task. What can cause a decrease in device performance, and how can this be eliminated?

Video (click to play).

There can be many reasons, the main ones are:

Leakage of freon, which is the main element of the system, allowing it to work. It can be caused by technological reasons, or it can arise by accident. It is necessary to check the device for leaks and refill it, if necessary.
Perhaps the main components of the heat pump parts are out of order, that is, the evaporator, compressor, fan, valves, sensors, or some of the control elements. In this case, you cannot do without replacing faulty components.
Various abnormalities in the electrical network, such as surges, dips and voltage drops. This must be taken into account when connecting the air conditioner to the home network and, if possible, exclude them, otherwise malfunctions in the operation of the device will become the norm.

But not only filters can get clogged, but also other internals of the air conditioner. They also need to be cleaned in time, otherwise such an unpleasant problem as leakage of drainage may arise. A lot of debris can settle in the drain pipe, as a result, the pipes become clogged, and liquid from the indoor unit can flow out directly onto the floor in the apartment. Agree, this is not very pleasant.

Leakage is eliminated by thorough cleaning of the drainage channel from foreign particles. In winter, the cause of the leak may lie in the clogging of the tube with an ice plug. In this case, the most optimal solution would be to clean the evaporator, or to refuel the air conditioner with freon.

If the equipment does not start at all and does not respond to commands given by the remote control, then, first of all, you should check the voltage in the electrical outlet.In order to measure the voltage, you must use a special device - a multimeter.

If he showed that the voltage in the network is sufficient for the correct operation of the device, then the cause of the malfunction should be looked for in something else. But for an accurate diagnosis, you first need to pull out the power outlet, completely de-energizing the device. After a minute, the air conditioner is turned on again. If nothing happens, then the batteries in the remote control may need to be replaced. It's easy to do it yourself.

In the course of its activity, the air conditioner passes through itself a huge amount of air, the quality of which is not always ideal. Therefore, often after some time, the device you bought begins to smell bad when it is turned on. The odor can be caused by bacteria that accumulate on the filter elements of the equipment. What to do in this case? Treatment of device filters with special antibacterial agents can help out here. It may also require additional treatment with a steam generator of the evaporator radiators.

In what cases is it not worthwhile to do it yourself? If the breakdown of the air conditioner:

Not caused by one of the reasons listed above;
The methods of emergency assistance to the device presented here did not help you;
You suspect that the problem has occurred in one of the complex and important parts of the air conditioner, such as the compressor.

In this case, you should seek professional help. Do-it-yourself air conditioning compressor repair is successful in quite rare cases. There is a great risk that the system will never work at all and that it will need to be completely replaced, or some of its important and expensive parts or assemblies should be replaced. Remember that the duration and productivity of the climatic device directly depends on the timeliness and correctness of the service and maintenance work. You can find out about the procedures that need to be carried out after certain periods of the device's operation from the instructions attached to it.

Almost all modern models of air conditioners have indicators that can show where there is a malfunction. This can be determined by the number of flashing lights on the indicator:

One blink - the thermistor in the indoor unit does not work;
Two flashes - the thermistor in the external unit does not work;
Three flashes - one of the systems - cooling or heating - is not working correctly;
Four flashes - the compressor overload protection system is not enabled;
Five flashes - the communication between the indoor and outdoor air conditioner unit is broken, you need to check the cable;
Six blinks - the actuators of the external unit are faulty, or the problem is in the power transistors;
Seven blinks - problems with the external unit and refrigerant pressure;

In order to minimize the risk of equipment breakdown, it is enough to carry out timely preventive maintenance of its operation approximately every month. Preventive measures in relation to the indoor unit include:

Surface cleaning by wiping with a damp cloth and detergent.
Washing the blinds from accumulated dust and dirt.
Checking the attachment.
Checking the pressure and an extraordinary refueling with freon, in the event of a shortage of it.
Checking the remote control batteries.
Checking the heat exchanger for frost.
Monitoring the air temperature at the entrance to the unit.
Cleaning filters.
Verification of operation in various modes.

Lift the front cover of the air conditioner and remove the filter. It is rinsed with a stream of cold water and detergent and allowed to dry before putting back.

Preventive measures in relation to the street block prescribe:

Use compressed air to vigorously clean to remove dust and wood fluff from the device.
Checking the wall mounts.

It is also worth recalling that in such a matter as the repair of air conditioning equipment, the instruction manual for its operation is a very important document. Without it, you cannot understand the complex structure of the system. And repairing equipment without special knowledge can be dangerous both for the equipment itself and for a person.

Any equipment has a certain period of warranty repair. Problems can be eliminated by service technicians. If a breakdown occurs when the warranty is over, you can repair the air conditioner yourself.

The climatic equipment is equipped with sophisticated electronics that provide convenient management and control. The software provides a diagnostic function. It is designed as indicators on the control panel. Automatic diagnostics will allow you to identify the presence of malfunctions and establish the nature of the breakdown.

Specific signals are given by lighting up indicators of a certain color with a certain frequency of blinking. With the help of them, you can accurately determine the cause of the failure.

The table of signal values is located in the technical data sheet of the device.

Signals are decrypted using special codes. The codes of standard breakdowns of the split system are tied to the character of the indicator light blinking:

Once. The thermistor of the indoor unit has broken, this device controls the temperature of the air coming from the air circuit.
Twice. Failure in the operation of the outdoor unit thermistor, it controls the temperature of the incoming air, as well as the temperature of the circuit pipes.
Three times. The operating mode of the air conditioner is out of order, you need to set up the operation for heating or cooling.
Four times. The compressor overload protection system is disabled.
Five times. The operation of the data transmission system from the external unit to the control panel is interrupted.
Six times. A temporary jump in the power consumption level of the outdoor unit.
Seven times. A jump in electricity consumption of the entire system.
Eight times. Malfunctions in the engine.
Nine times. Directional valve malfunction.
Ten times. The thermistor, which controls the temperature conditions in the unit, does not work.

To carry out automatic diagnostics, you need to run the appropriate program through the control panel. The control panel usually has a separate button that is responsible for starting diagnostics. After the test, the device will give a signal through the indicators with a certain number of lightings of the lamp.

During the operation of the air conditioners, all possible breakdowns and malfunctions were identified. Some are common, others are extremely rare. There are breakdowns, the elimination of which can be done by hand, but there are those that cannot be repaired.

Common air conditioner malfunctions:

The device does not turn on.
The split system switches off after a short period of operation.
Condensate leaking from the indoor unit.
Smells when working.
Clogged filters.
Extraneous noise.

Breakdowns, the elimination of which is impossible with your own hands:

failure of the compressor;
refrigerant replacement;
breakdown of electronic elements;
replacement of thermal insulation;
Change of oil.

According to all the rules, malfunctions of a split system must be eliminated by a master who has undergone special training. But this is associated with financial costs, so it is worthwhile to carry out a diagnosis first. If the malfunction is simple, you can try to fix it yourself.

The most common breakdown is that the air conditioner does not turn on. Before taking drastic measures, check that the power cord is plugged into the outlet and that the outlet is powered. Oftentimes, the problem lies in the electrical network, not the hardware. It is imperative to check the functionality of the batteries in the remote control.

If, after checking the connection to the electrical network and the operation of the remote control, the air conditioner does not turn on, it's time to contact the service center, because.it will not even be possible to carry out an automatic diagnosis.

You can independently try to eliminate the leakage of condensate from the indoor unit. The main reason for such a malfunction is a malfunction of the drainage system. During winter operation, it can become clogged. To eliminate the blockage from icing the channel, it is necessary to carry out preventive heating, i.e. bring the temperature of the air conditioner parts to 6 ° C. Thawing the liquid will release the drain channel, which will eliminate leakage from the indoor unit.

Another reason that can interfere with the operation of the split system is clogging of the filters. They are installed in an outdoor unit where air is drawn in from the street. The main symptom of clogged filters is a decrease in cooling efficiency without changing the settings at a stable outside temperature. Dust and other particles settle on the filter, reducing air permeability.

In all other cases, it is worth abandoning attempts at self-repair.

Troubleshooting more serious problems requires specialized knowledge, skills and equipment. The best solution in such cases is to contact the master at the service center.

The shutdown of the air conditioner can occur for the following reasons:
The programmed room temperature has already been reached.
The device is operating in dehumidification mode.
Compressor overheating.

The temperature control element of the split system blocks is out of order. The reason for overheating of the compressor may be clogging of the filter, therefore, it is necessary to inspect this element of the outdoor unit. A few more reasons affecting the compressor's performance:

fan breakdown, insufficient rotation frequency;
imbalance in the evaporator and condenser circuits after refrigerant charging.

A common problem with air conditioners is the appearance of an unpleasant odor during operation. The reason for this trouble is the appearance of mold and bacteria in the case of the indoor unit.

To eliminate the smell, you need to thoroughly clean the air conditioner.Climate technology plays an important role in creating a comfortable home environment. Repair of air conditioners in case of breakdown is easy to do with your own hands, since these devices are quite simple to operate and work.In household ventilation systems, a decrease in work efficiency is immediately felt. If some signals about the impending breakdown of home air conditioners may not be immediately noticed, then the deterioration in performance is noticeable immediately (especially in the hot season). The main types of air conditioner malfunction:Separately, it must be said about the breakdown of floor-standing household air conditioners. Correct installation of climatic technology plays a very important role. If the installation was not carried out on a flat surface, then the drains will clog first, and then the radiator and engine will fail. The air conditioner will hum during operation and accumulate condensate, after which it will be almost impossible to repair it. Image - Air conditioner lg DIY repair

Photo - the principle of work

Video: how the air conditioner works

The easiest way is to clean and urgently repair the air conditioner radiator at home. Externally, the split-system radiator resembles a very fine mesh, which is located under the front panel of the device. Due to the fact that it is constantly exposed to dusty air, a large amount of debris from the outside accumulates on the mesh, which gets into your home during work. In addition, the equipment also builds up dust during downtime (winter and autumn), which also causes dust to appear on the radiator. Image - Air conditioner lg DIY repair

Photo - purging the filter

To be on your own clean and repair the air conditioner, need to:

Remove the panel from the device. It is attached to threaded connections, they are removed with a screwdriver or wrench (depending on the brand). In some window air conditioners (Mitsubishi, Hitachi or Daikin), the panel is also secured with hidden locks; Photo - cleaning the split system
Under it are the first air filters, through which the air flow passes both from the street and from the house. Therefore, you need to remove and soak in warm water and soap for 30 minutes. During this time, fatty deposits and dust will peel off from them, and pathogenic bacteria will also be destroyed;
A rotary fan is located under them. It is produced in the form of a roller and must be cleaned, since it is this part that helps to distill air. Its maintenance consists in wiping the blades with a damp cloth soaked in soapy water;
Further, you will find yourself in the filters through which the air flow enters from the outer compartments into the inner ones. These parts are cleaned with a roller dipped in water and soap, you can buy a special tool or use a rag wound around a long tube.

Most often, warranty repair does not imply cleaning the radiators of air conditioners, so you will have to carry out the work yourself. It is advisable to repeat the process every six months for the best effect.

Photo - professional cleaning products

Instructions on how to clean the heat exchanger of a Panasonic (Panasonic), Samsung (Samsung), VAO and others air conditioner:

It is necessary to remove the front panel and remove all parts of the external compartment. You need to get into the internal one, the heat exchanger is located exactly there;
There are several ways to clean. For example, many even professional craftsmen simply blow through the radiator with a vacuum cleaner. If you do not have this device, then you can walk over it with a soft brush;
To test its performance, dip the part in a bowl of soapy water. If bubbles come from somewhere, then the radiator needs to be soldered.

Photo - place of leak

With rare use of the conditioner, or, on the contrary, after very intensive use, many owners notice that water drips from under the front panel. The problem is clogged drainage pipes... What to do:

Repair of air conditioner hoses is carried out only in the warm season, in extreme cases, at a positive temperature, otherwise it will be impractical;
If the problem was noticed after the winter season, then first you need to carefully warm up the branch with warm water and a rag - probably an ice plug has formed in the pipe;
If the malfunction was discovered in the middle of the working season, then the pipe must be blown out. For this, special compressors can be used, which are output to the internal outlet of the tube or liquid. Read the instructions first to see if cleaning solutions can be used in your conditioner.

But the most dangerous problem that requires urgent repair and can affect the operation of the air conditioning compressor or its clutch is refrigerant leakage. The main insidiousness of a malfunction is that it is very difficult to detect. Not even all professional workshops provide such a service. Leakage signs:

Noise during operation;
Decreased cooling efficiency;
Sudden changes in temperature.

Before starting the repair, you need to find the place of the leak. There are several ways to do this. The easiest is, again, using a soapy solution. It is necessary to lubricate the pipes of the refrigeration circuit with a special soap (you can also use the usual 1: 1 solution, but its effectiveness is lower), and watch where bubbles appear.

Photo - measurement and elimination of refrigerant leaks

In some brands, a liquid is added to freon, which glows under ultraviolet rays. Of course, you will need to arm yourself with a UV lamp, but this is the fastest and most efficient option. It will not work to repair high and low pressure pipes on your own, moreover, if the problem is not detected in time, the repair will be more expensive than the cost of the equipment. Therefore, we recommend that you immediately contact the service center with this leak.

Very interesting to read:

If you notice a malfunction in the operation of your air conditioner, or it does not turn on at all, you need to think about whether it needs repair, and you can try to do it yourself, since the warranty period has long expired. Of course, you will not always be able to repair the air conditioner yourself. But still, there are such breakdowns that you can fix it yourself, even if you are far from being able to repair household appliances. By doing this, you will save money in your budget.

The term "air conditioner" is represented by two English words, these are "air" - "air" and "condition", which today is understood as a device that maintains a given temperature in a room. This name has been known for a very long time. The most interesting thing is that this word was first mentioned in 1815.

As history is glossing over, it was in this year that the French inventor Jeanne Chabannes was solemnly awarded an English patent for the invention of a method for "regulating the temperature in residential buildings and other buildings, that is, the method of air conditioning." And the first air conditioner was made not to maintain a certain temperature, but to establish a certain humidity.

For a very long time, US companies held the lead in production and in new developments, but in the middle of the last century, the leadership passed to Japanese specialists. Maintenance of an air conditioner nowadays requires a long wait for a master who has studied the manual for repairing an air conditioner, it is an expensive undertaking, so you can take certain independent steps before contacting the repair service

Before using the services of a workshop, you can try DIY repairs. You need to understand that self-repair of an air conditioner is not an easy task, but a complex and responsible procedure, which is limited by opportunities, lack of certain knowledge and the necessary equipment. But some breakdowns can be dealt with on their own without using the services of a service company.

First you need to find out if the faulty air conditioner is really a faulty one. Almost all modern models are equipped with special indicators that automatically notify major breakdowns. To find out which system failed, and how much it costs to repair the air conditioner, you can find out by the blinking and color of the failure indication lamp. The entire system of automatic diagnostics for the blinking and color of the lights should be described in the instructions, so there should be no problems with troubleshooting.

When an air conditioner malfunctions, the light blinks a certain number of times, according to the detected error. Common standard error codes for air conditioners with specific flashing light colors are shown below.

1 time - One of the thermistors of the indoor unit, which controls the incoming air temperature through the gas pipe, is out of order. It is worth checking the operation of the thermistors of the indoor unit of the air conditioner.

2 times - The outdoor unit thermistor is out of order, it is the temperature sensor of the incoming air or the gas circuit tube. To repair an air conditioner with your own hands, you need to check the performance of such thermistors.

3 times - The air conditioner works for cooling and heating the air, therefore it is so important to correctly set the operating modes of the air conditioner. Check that the cooling and heating control systems are working properly.

4 times - The compressor overload protection system is turned off. It is necessary to check the correct operation of the compressor protection against large overloads.

5 times - Errors in the exchange of information between outdoor and indoor units. Check the serviceability of the cable and the communication circuit of both units.

6 times - The power consumption of the executive devices of the external unit was briefly higher than the set rate.It is necessary to check the operability of the executive devices of the external unit and the main power transistors.

7 times - The total electrical voltage of the outdoor unit was above normal. You need to learn how to repair the air conditioner, check the refrigerant pressure in this system and the performance of the elements of the outdoor unit.

8 times - Fan motor is faulty. Check the operation of the engine and the control circuit of the engine elements.9 times - Directional valve defective. Check the functionality of this valve.10 times - The thermistor, which monitors the temperature of the compressor housing, does not work. Check the performance of the thermistor.Remember that some errors can occur when there is an accidental power failure in the system. This can be due to voltage surges in the network. Therefore, before starting work, watch a video about repairing an air conditioner, turn off the compressor, and then check the voltage in the network, and then turn it on after a few minutes. The causes of breakdowns in air conditioners are different, below we will describe their main ones.One of the signs of a breakdown of the air conditioner may be the absence of a signal coming to the control panel. The first thing to do is to check the power connection of the equipment. In this case, you need to turn off the air conditioner for a while from the power source, and then turn it on again.