Refrigerator repair and device: principles of operation of different types, typical malfunctions, components

After work

Replacing an old seal in the refrigerator is a simple task for an experienced craftsman

However, it is important to know how to take care of your household appliance in order to avoid repeated breakdown.

  • Compliance with the defrosting schedule (for outdated models);
  • Periodic check of units and parts for rotting, unpleasant odor, crumbling;
  • Avoiding overheating or hypothermia (especially important for equipment that is not currently being used, but stored in a warehouse or garage.

By observing these simple rules, you can avoid the need for repairs and extend the service life of the equipment.

It is important to note that a huge amount of cold escapes through the slots in the seal, which adversely affects the quality of the products and makes the refrigerator work in an enhanced mode. This has a detrimental effect on his resource.

Even a small gap, into which the corner of A4 sheet will freely pass, is a potential problem and has a bad effect on work.

Self-diagnosis of the refrigerator.

The first thing that comes to mind for domestic consumers is to try to repair refrigerators with their own hands. This makes a certain sense, since indeed some problems can be easily eliminated by yourself with minimal financial costs. To carry out small repairs, knowledge of the general design of the refrigerator, small skills in working with a measuring tester and knowledge of an electrician are enough. Replacing the seal yourself.

If your refrigerator is not working, you should check if there is a power supply to it. To do this, simply open the refrigerator compartment door. If a light appears in the refrigerator and there is a light indication on the information boards, then the voltage is supplied to the refrigerator.

Next, you should check the operation of the thermostat. To do this, set the level to maximum cold using the temperature regulator. If at the same time the operation of the refrigerator does not resume, then the malfunction should be looked for both in the thermostat itself and in the compressor engine or in the scheme of its starting and protection. As a rule, repairing a relay thermostat, or rather replacing it, is quite simple to perform. It is enough to buy a new one and install it instead of the faulty one.

You are unlikely to be able to perform the work of a thermostat based on an electronic sensor on your own. The relay-based compressor starting system is also easy to check with a conventional tester. If necessary, replacing a faulty one takes no more than ten minutes if a new one is available. It is not difficult to restore the operation of the refrigerator in case of breakage of visible electrical conductors or oxidation of various contacts on the relay. Malfunctions in this case are eliminated by ordinary stripping and joining. Unpleasant odors in the refrigerator can be eliminated by thoroughly cleaning the compartments of the refrigerator and by clearing clogged drain pipes so that condensation can drain freely. How to defrost the refrigerator correctly.

Self-repair of a refrigerator with a noufrost system (No frost).

Modern refrigerators are complex devices based on microprocessor-controlled electronic blocks that process information from various sensors and sensors, and also control the operation of all systems. At failure electronic control units, you cannot repair refrigerators with your own hands. Naturally, you will not be able to eliminate compressor malfunctions, violations of the tightness of the refrigerant pipes. Entrust the performance of all specified work to better qualified specialists.Only they can restore the normal operation of all systems. This is especially true for refrigerators with the Nofrost system with complex systems of sensors, heaters and cold air circulation. Do not repair the refrigerator yourself. Trust it only to professionals who will perform all operations efficiently and will certainly provide you with a guarantee.

How to adjust the refrigerator door

07 22 15′

You will need

  • - screwdriver;
  • - steel plate;
  • - self-tapping screws;
  • - probe made of non-magnetic material;
  • - a sheet of paper 30-50 mm wide, 0.1 mm thick.

Instructions

Paragraph 1

Do not fill the refrigerator door to the eyeballs, otherwise the door will be skewed. Heavy jars of pickles and jams have no place on the shelves of the refrigerator door. Take a look at the bottom and top horizontal surfaces of the door; if the holes for the bracket are not broken, adjust the refrigerator doors.

Point 2To do this, loosen the upper and lower mounting bolts. Next, proceed based on which part of the panel does not fit tightly to the refrigerator due to the skewed door.

If the upper half of the door does not fit well, remove one overlay from under the upper hinge. Shoulder the refrigerator door against the cabinet while tightening the screw.

If the lower part of the door is loose, by loosening the bolt of the lower hinge, pull out one gasket from under it. Applying force to the lower part of the door, tighten the screw.

Point 3Move the refrigerator door to the opposite side if, when examining the holes for attaching the brackets, you find out that they are broken.

Adjust the refrigerator door with the upper and lower screws

Item 4Start repairing the door if you find broken holes for attaching the brackets, and you cannot hang the door to the other side. Remove the door and fix the steel plate on the damaged surface using self-tapping screws. Prepare a hole for the bracket axle, install the door in its place with subsequent adjustment.

Item 5After you have hung the door, check the tightness of its fit. This is done with a special non-magnetic probe or a narrow strip of paper. The door seal should hold this dipstick well. If it slides down under its own weight, then there is a gap.

In this place, loosen the screws securing the seal, put a strip of foam rubber or a piece of cardboard. With a long service life, in order to prevent depressurization of the refrigerating chamber, it is necessary to completely replace the rubber insulation. Next, check the tightness of the insulation again.

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Household

Common problems

The main defects of the refrigerator door are a loose fit to the body or, conversely, difficulties with opening. In the first case, poor contact of the sealing element can cause damage to the compressor due to overload. In the second option, the main thing is the inconvenience in using the unit for its intended purpose.

3> Tight door opening

The seal sticking defect is observed in the latest models of refrigerators for the first time after purchase. A vacuum is created inside the refrigerator, which sucks the flap to the refrigerator body. This happens if the time interval between the first and second opening of the door does not exceed 3 minutes. The physical explanation of the problem: room temperature air during the first opening enters the refrigerator compartment, where it instantly cools and contracts.

If you try to open it after a few seconds, the door will be difficult to open. Within a few minutes, the pressure in the refrigerator is equalized due to the suction of air through the door seal. After several months of operation of the refrigerator, the rubber-magnetic gasket will lose its original adhesion.

Slack adjustment

A common reason for a skewed refrigerator door is an excessive load of food on its inside.Under their weight, the upper loops come out of the grooves. Strong and frequent slamming when closing the refrigerator can break the fastening of the sash.

It is important to level the unit. An uneven floor will cause the door to warp over time under the influence of gravity, especially if the gasket is worn out and does not adhere well to the refrigerator.

The reasons for the separation of the door are determined using a quarter of a notebook sheet, which is placed on the seal and the refrigerator is closed:

  1. The paper falls out without being held in the opening, which means the loops are loose.
  2. In some areas of the gasket, the paper is held, in the rest it falls out. The door does not close due to deformation of the rubber.
  3. When the door is closed, it receives a reverse impulse and goes away: failure of the spacer (plastic part at the bottom of the door on old models of refrigerators).

A loosely closed door will allow warm air to pass through. As a result, the compressor will work without interruption to maintain the temperature at the proper level. In this mode, it will quickly fail.

Creaking

The door of a new refrigerator may creak when opening, until the hinges are developed. A squeak that appears may mean that the grease has dried on the hinges and the metal parts are rubbing against each other.

DIY refrigerator repair

Control module for the Nou Frost refrigerator and more

This article is interesting for those who have a refrigerator not only with the Know Frost system, but also with a crying defrosting system. The fact is that in modern refrigeration units, the defrosting of the crying evaporator, which is installed on the back wall of the refrigeration compartment, behind plastic, is slightly complicated. At the moment, a large number of two-compartment refrigerators with a crying defrost system have approximately the same control as the No Frost refrigerators. That is, if you remove such a detail as a fan from the control system of the Nou Frost refrigerator, then these brains can be put on a refrigerator with a crying defrosting system. In general, to make it clear, two-compartment refrigerators with a weeping evaporator have a defrost heating element, there is also a defrost sensor, these parts are installed in the refrigerating chamber on the wall of the bed. Very often, the defrost heating element burns out, and sometimes the sensor sensor fails, so that these parts have to be changed, you have to take a risk, that is, a window must be cut out from the back of the refrigerator in order to install the defrost heating element and the sensor. In short, the procedure is not easy and requires a lot of skill, in order to avoid such a risk, there is a universal control module, thanks to this spare part, the masters easily cope with the task. A universal control module, can be used in almost all refrigerators, from single-chamber to two-chamber with the Know Frost system. In the full version of this article, I will tell you how to install the control module, that is, the NA 630 electric controller, on a two-compartment refrigerator. In general, if electronics are constantly buggy in your refrigerator, then such an electric controller will help you in repairing the refrigerator with your own hands. To read the full version of the article, click the more button

General information and concepts

The working substance, in our case freon, boils at low temperatures. The principle of operation of any refrigeration equipment is based on this effect. At the same time, freon absorbs heat from the environment. There is a sealed chamber. It is filled up to a certain level with a refrigerant (freon) at the factory. During the operation of the equipment, its quantity is constant if the chamber is sealed. In the process of lowering the temperature, only the physical state of the refrigerant changes: it passes from liquid to vapor, and then back to liquid.In general, the refrigerator, the repair of which we will consider with our own hands, is a very complex design. It may seem that it is unlikely that it will be possible to repair any node on your own, but in fact it is not. If you look at it, then there are typical breakdowns that are most common. Home craftsmen figured out what was what for a long time, and shared it with the rest.

Refrigerator manufacturers

The times of Soviet technology are happily in the past, and therefore in the modern world, almost all refrigerators are two-compartment. Do-it-yourself repair of two-compartment refrigerators is possible in many cases, but there are some features associated with the manufacturers of some refrigerators.

When buying a refrigerator, people very often pay attention to the brand, which is not surprising. Most often, the main role in this is played by the presence of a refrigerator of a certain brand from a relative or acquaintance who has been serving for 20 years and does not break at the same time

The subtle point of such statistics is the hidden real numbers. I'm talking about the fact that not all manufacturers sell the same amount of equipment. For example, a small refrigerator manufacturer like Liberton can sell up to a thousand refrigerators a year, with fewer than a hundred breakdowns within a few years.

At the same time, several hundred thousand are in the repair of LG refrigerators within one year. Someone from your acquaintances or sellers may tell you that refrigerators of this brand hardly break down, forgetting to add that the latter sell millions of pieces of equipment, including refrigerators, every year.

And the fact that your grandmother had a certain refrigerator for 40 years also does not make this manufacturer ideal for you. At the same time, for all the years, it was only necessary to repair the gum on the refrigerator on their own - not to pay the masters for any nonsense.

Skew of the Atlant refrigerator door, DIY repair

For normal operation and good preservation of food, the refrigerator doors must be hermetically closed. If this does not happen, condensation forms on the walls. Over time, the problem leads to deterioration of food, an unpleasant smell and breakdown of some parts. Therefore, if you notice a skewed refrigerator door, do not hesitate, the problem must be solved immediately.

For what reasons there is a bias and how to fix it, read below.

Why is the door of the refrigeration equipment warped?

The main reason that the door is distorted is the overload of the hinged shelves. Heavy bottles, cans pull the door down. These products will find a place on the shelf in the chamber, it is not necessary to completely clog the hinged door of the refrigerator.

With prolonged sagging, the hinge bracket is deformed, which secures the equipment door from below. As a result, the part may break off, and there will be no easy repairs. A similar breakdown also occurs with improper transportation of refrigeration equipment.

What if there is a gap between the door and the chamber? First of all, check:

  • take a sheet of thin paper;
  • insert the sheet one by one around the entire perimeter of the chamber and close the door;
  • where the sheet will sit tightly, the closure is airtight; where it will fall out or be easily pulled out, the tightness is broken.

If you are satisfied that there is a gap, inspect the brackets. Where the door does not fit well will determine the adjustment of the fastening bolts.

How to fix the skew yourself

To correctly adjust the mounts, unplug the equipment and place it on a flat surface.

We eliminate the skewing of the door of the Atlant refrigerator:

  1. Free the refrigerator shelves from food.
  2. If there are lower drawers, slide them out.
  3. Use a wrench to loosen the bracket fasteners. They do not need to be completely unscrewed, otherwise the fasteners cannot be obtained without disassembling the refrigerator.
  4. Adjust the door height with the key.If there is a lot of sagging, you can remove the pad at one of the attachment points. Conversely, place the lining where you need to tighten the fasteners.
  5. Press the door harder against the body. Secure the loose fasteners.

Open and close the camera several times. See how tightly the seal fits to the body. Is the door moving enough to turn on and off the lights in the compartment? If something does not fit, you still need to adjust the fasteners.

If the seal does not fit well in certain places, try replacing or straightening it. With frequent opening of the chamber or strong cotton when closing, the rubber seal is deformed. If it is old and worn out, replace it with a new one.

It is enough to straighten a good sealant with hot water. To do this, heat water in a kettle and pour a thin stream around the rubber perimeter, and then straighten it immediately. Such repairs can be done by yourself.

Monitor your refrigerator. Fix problems early, before they lead to serious damage. Even better - adhere to the norms of loading the refrigerator, do not overload the shelves with food. This will save you serious repair costs.

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How to Fix a Dent in Your Refrigerator Using Thermal Expansion

If a small hole appears on the refrigerator, then the surface can be returned to its original position using simple physical laws. A dent is a place where there is a large indicator of the internal stress of the metal. To return it to its original appearance, it is necessary to reduce this effect.

You can try to eliminate it with carbon dioxide. First, the damaged area is washed and dried. Then they heat it up with a hairdryer and spray the hot place with carbon dioxide. It is sold in a spray can. When it comes into contact with air, an endothermic reaction begins. As a result, the surface cools down. If nothing happened, the procedure is performed again.

Removal with a hair dryer

First, the damaged area is washed well with the prepared soapy solution. Then the dent is heated with a hair dryer for 1 minute. Since the metal expands from heating, the hole can be straightened

It is important not to overheat, otherwise the inner filler will be damaged.

Removal with dry ice

Some repair the damage with dry ice. He burns his hands, so before removing the dent on the refrigerator, wear protective gloves and wrap the substance in a rag.

The damaged area is treated in a circular motion. Do not press, otherwise scratches will appear. The procedure is performed for 1 minute. At this time, a characteristic pop should be heard. This means that the steel sheet has returned to its original position. If the attempt fails, you must repeat everything.

DIY refrigerator repair photos

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Work progress step by step

When all the preparatory work is completed, and the tools are prepared, you can begin work.

First of all, secure the door securely using This is necessary so that it does not deform when you unscrew one of the fasteners.
Now, using a knife or spatula, remove all decorative elements blocking access to the bolts.
Using a key or a screwdriver (depending on the type of fastening), carefully unscrew the fasteners that hold the door in an upright position.
After removing the tape, remove the door from its hinges and carefully lean it against the wall. To avoid accidental damage, you can lay it on the floor with a piece of cardboard or an old blanket.

This point is especially important for those who decided to rearrange the glass door in such models beats quite often.
Equip yourself with the right tool and dismantle the hinges one by one, then install them on the desired side using the appropriate technological holes.
During installation, be careful not to swap the mountings. The fact is that each loop has a certain development. By swapping the lower and upper mounts, you run the risk of achieving not very good results.
Reposition the door to its new position and replace the fasteners. Attach if it is removable.
Use a piece of paper to check if the elastic fits snugly
This is very important for the refrigerator, if there is no tightness, it will not work properly.
This check is very simple. You need to squeeze a piece of paper between the door and the body and try to pull it out
If it was not possible to do this, or the sheet passes with difficulty, then you did everything right. If the paper slips easily, the door needs to be adjusted.

Why is it needed

As practice shows, the right-hand arrangement of the refrigerator door is not always convenient enough. The way out of the situation was the re-hung refrigerator doors, which were developed and successfully used in many models.

There may be several reasons why you have to perform such an operation:

  • redevelopment of the kitchen, in which the right-hand position is simply inconvenient;
  • the desire of the left-handed owner to make his life more comfortable;
  • weak clamping of the refrigerator door to the body due to the subsidence of the fasteners.

Most often, door reinstallation is included in the warranty service. But, firstly, the guarantee tends to end. And, secondly, it often happens that during its operation, you moved the door to a comfortable position, and then decided to return everything back. How to be? Everything is very simple. Even a superficial knowledge of how to outweigh the refrigerator door will allow you to do all the work yourself, without the help of a specialist.

How to repair a refrigerator with your own hands

Freon leak in a two-compartment refrigerator

If you were told that a freon leak occurred in your two-chamber refrigerator and it requires expensive repairs, namely the installation of a crying evaporator and you are thinking whether to repair this one or buy a new one, then first let's see in which cases you should make such a repair

First of all, you need to pay attention to the condition of the refrigerator body, especially to the state of the sealing gum, a lot depends on it. If the body and the seal are in good condition, then such repairs can be done without even thinking

The fact is that after installing the crying board, your unit will work much longer than, for example, a refrigerator bought in a store.Imagine, new refrigerators, of some brands, barely nurture the warranty period, this is due not so much to a defect as to the cooling system itself, or rather to the evaporator in the refrigerating chamber, which is behind the plastic. The trouble is that at the factory, a crying board is installed between pentane and plastic, as a result, there is no access to oxygen and nothing to breathe, and eventually aluminum oxidizes with its subsequent rotting. In the video, I told how long the refrigerator can last after such a repair, that is, after the master installs the crying evaporator in the refrigerator

Watch the video. How long will the refrigerator work after repair

Why is this happening, that is, new refrigerators work less than repair ones. Let's remember the old ones - the good "Nords", "Minsk", "Snaige" and so on, that is, those halodos in which the cry was from the outside, and not behind the plastic. Many of these refrigerators worked for 20 years without repair, and if something broke, it was easily repaired. The fact is that in old units, the cooling system, as it were, breathed and the oxidation of aluminum was much slower. If you have any idea what I am talking about now, then it will not be difficult for you to understand that if in a modern refrigerator, the evaporator of the refrigerating chamber is brought out, it will be much more reliable than if it was behind plastic. Almost all masters already know how to do this and do it very well

Now let's talk about customer greed. Very often people come to my workshop with a request to refill the refrigerator, they say, throw freon and everything will be fine. I will say this, sometimes this number will climb, but in most cases, a simple refill will not give the desired result. You need to understand that if a neighbor was filled with a refrigerator and he worked for him for more than a year, this does not mean that your refrigerator will work as long. There may be several reasons why the refrigerator does not cool or freeze, but still the main one is a freon leak and a dull refueling, it will not help here. If there is a freon leak, it must be eliminated, and it is eliminated by installing a crying evaporator and turning off the defrost circuit. Yes, the operation is expensive, but it's worth it, investing money once, you guarantee the operation of your unit for many years. In the event that you do not trust the master, turn to another, but do not look for easy ways, mostly they do not lead to what necessary. Remember, the miser pays twice. Lastly, I wish you a successful repair

Other malfunctions

Another common cause of breakdowns is an incorrectly positioned refrigerator protection relay. In this case, it must be installed correctly, according to the diagram. By the way, the same applies to the starting relay, which works on the principle of plate heating and gravity. The unit must be installed strictly according to the instructions. Set it upside down - and there will be trouble. It can even lead to damage to the compressor, which is not very cheap to change.

If an unpleasant odor appears, then this also indicates a technical malfunction. Often the problem is that after a while the drain pipe becomes clogged. Cleaning the tube is quick and easy. To do this, it can be blown out with compressed air or rinsed. After that, the problem should be fixed.

Identification and self-correction of seal faults

Local identification and correction of breakdowns associated with the refrigerator door, which is quite realistic to eliminate yourself, can be indicated by several points. Firstly, during visual inspection, when the refrigerator door does not stick well and then opens easily or sags strongly, it will be necessary to carefully remove the protective casing from the hinges (if any) and tighten the door to the required level.It is possible that the gap that appears is associated with the subsidence of the refrigerator door.

Secondly, if the loose fit is due to the deformation of the rubber seal, because the material loses its elasticity over time, then it can be returned to its previous state by heating. To do this, you will need a heating device (industrial or household hairdryer) or a thin stream of boiling water from a kettle to heat (pour) the deformed area of ​​the seal, and while it is elastic, give it its original shape by placing a spacer (a piece of rubber, paper or dense foam rubber) under the heated area ...

Thirdly, before as adjust the refrigerator door and try to restore the damaged seal, you will need to pull off its edge with a thin screwdriver and consider the fastening method. It can be bolted, glue, special clamps or in slots (grooves). Replacing the seal on the body (or door) of the refrigerator, in whole or in part, is carried out by measuring the old element and gluing instead of the new one into magnetic strips prepared in advance, which are inserted into the cavity of the gasket profile. In the absence of a native sealant, you can try to order and buy a universal one.
A similar repair of a worn out or damaged rubber seal is most often performed only if it is installed on a refrigerator of the Atlant, Minsk or Oka type.

Other problems, in addition to replacing the gum seal, when a small one is required, is the creaking of the door or its reinstallation. You can eliminate the appearance of a squeak in the following way:

  1. Identify a hinge (or several hinges) that creaks when opening / closing the refrigerator door.
  2. Eliminate the defect with a drop of machine oil by instilling it into the door hinges (in no case use vegetable oil, i.e. edible oil for this purpose).

Thus, simply adjust the hinges by raising them (as far as free play allows) and dripping a few drops of oil onto the axle in order to get rid of the unpleasant squeaking sound.

Another, no less difficult work on self-repair of the refrigerator is adjusting the door when it is reinstalled or sagging, which is carried out using plastic shims. Depending on the magnitude of the door sagging, such washers will need to be purchased from 2-4 pcs.

In order to adjust the refrigerator door with your own hands when sagging, you need to carefully remove the door by unscrewing the refrigerator panel and removing its fasteners at the top. Then you need to put adjusting washers (1-2 pcs.) On the pin of the lower bracket and adjust the door horizontally. Next, it remains to "put" the refrigerator door in place, checking it for distortions and cracks, as well as for the presence of a tight fit of the elastic to the body (or door) and the operation of the light switch in the refrigerator.

If a break in the bore is detected, the door will simply need to be moved to the opposite side, where it is intact. Similarly, adjust the door for distortions (see description above) using plastic shims. If the hole breaks in two places and it is impossible to outweigh the door, it will be necessary to strengthen the plate on the damaged surface using "cold welding". Then prepare a hole for the axis of the bracket of the corresponding dimensions and hook the door to its original place.

A refrigerator is an absolutely ordinary household unit for every modern home. True, sometimes it is quite difficult to choose a model that will successfully fit into the kitchen environment. This is due to the design features of the refrigerator. Most often, the doors of Indesit, LG, Samsung and many other brands of refrigerators open from left to right. This is not always convenient.If the arrangement of furniture in the kitchen requires a different arrangement, the question may arise of how to outweigh the refrigerator door.

Of course, the easiest way is to call the wizard from the service center. For an appropriate reward, he will easily solve your problem. But if you want to save a little, then after reading this article, you can easily do it.

How to repair a refrigerator yourself?

How to repair a refrigerator yourself? To repair the refrigerator yourself, find out the reasons for the malfunction of the refrigerator. To do this, carefully read the instructions. In it, the manufacturer clearly describes the structure and principle of operation of the refrigerator. To check if the wiring is working, make sure that the light in the refrigerator is on when the door is open. Replace the burnt out bulb with a new one.

Next, check the plug and socket. Inspect the wire connections to the thermostat and relay terminals. To exclude the breakdown of the refrigerator from drops mains voltage, use a voltage regulator. If the refrigerator periodically leaks, and you begin to notice water in the chambers, this indicates that the process of moisture drainage into a special tank has been disrupted. To correct this problem, clean the drain channel or drain hole.

If your refrigerator has become much more freezing, look for the problem in the thermostat. In this situation, turn the thermostat knob counterclockwise. If this action does not work, check the quick freeze button. When it sinks, there is a strong cold in the refrigerator chamber.

The next most common problem is that the refrigerator freezes slightly or does not freeze at all. Check the door of the refrigeration unit, which may come off. In this case, you can repair the refrigerator yourself by changing the tension of the door canopies. They are located above the refrigerator door panel. Then the appliance door will not open.

To check the tightness of the door, place thick strips of paper around the perimeter between the cabinet and the door seal. The tightly clamped paper confirms the tightness of the doors. Next, check the elasticity of the rubber door seal. A loose door will put more stress on the motor and damage it. Replace the completely unusable seal with a new one.

If all the actions for self-repair of the refrigerator did not bring positive results, invite a specialist. Replace the completely unusable unit with a new one.

How to repair refrigerator door panel

How to fix the refrigerator door yourself? With your own hands, you can repair the surface of the refrigerator if you find scratches on it. Paint over small scratches with white enamel.

If metal is translucent in scratches, sand the damaged areas with sandpaper. Prime with nitro filler. After drying, sand again with sandpaper. Wipe with gasoline and enamel. To achieve the initial shine, you can use a composition of 20 g of ammonia and 50 g of tooth powder.

Seal cracks on the inner surface of the refrigerator door with polystyrene adhesive. Rub thin ones with your finger, and apply fabric patches on large ones, which are pre-saturated with glue. We hope that the recommendations on how to fix the refrigerator yourself will be useful to you, and you can repair the refrigerator yourself if it has expired.

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