How to install a new refrigerator compressor. Replacing the compressor in refrigeration technology. When the refrigerator compressor is needed

Refrigeration devices differ from other large household appliances in durability, while functioning daily. However, they are subject to breakdowns.

With frequent power voltage drops, the compressor for the refrigerator becomes the first. It is this mechanism that is considered the most important element of the system running freon by pipes, due to which the cooling is ensured.

In this article, consider the existing compressor varieties and we will analyze the causes of typical breakdowns. We also give a detailed instruction to replace it with your own hands.

The broken compressor promises significant spending not only to purchase a new device, but also to the work of the master.

However, you can go to another way and independently replace. Whatever the option is selected, first of all it will be necessary to choose the desired type of compressor.

Collective air supercharger

Receiving information about innovative models of refrigerators can be found as a "regular" compressor. However, not everyone knows meaning.

Under this term, there is a collector mechanism, with a vertically installed electric motor shaft. It is mounted on the spring mechanism and is closed with a hermetic box, thereby providing a high degree of sound insulation of the system.

In the old models, a horizontal layout was used, which made the aggregate more noisy - the vibration was reflected on the entire case.

It uses the standard principle of operation and technology developed by many more tens of years ago - the supercharger works until a specified temperature mode is reached in the refrigeration unit, and then turns off.

Refrigeration units can be equipped with one or two collector superchargers. If there are two of them, then one maintains the temperature in the freezer compartment, and the other in the cooling unit. Now you can even meet two-component equipment

Overview models equip mainly budgetary options for refrigerators and their only advantage over other representatives of the species.

Inverter type compressor

Upgraded units are equipped with an inverter type of supercharger. An ordinary compressor comes out on the peak of its capabilities when disabling, while on the day of such repetitions is very much, and accordingly, it is subject to fast wear and reduction in the operational period.

Then the inverter devices operate even with sufficient injection of air in the chambers, periodically reducing the number of revolutions. The wear resistance of component elements is significantly lower, and accordingly, the term of uninterrupted use is higher.

Linear type of device

Innovative developments in imported technique have used a new type of blowers - linear. The principle of operation is similar to the previous instruments, however, this type is functions much quieter and more economical.

Unlike conventional mechanisms in them there is no crankshaft. Through the action of electromagnetic forces, reciprocating rotor movements are provided.

New modern models of cooling devices are presented in layout with inverter compressors. They work measuring and smoothly, without amplitude drops, which are the main causes of the wear of the mechanism

Linear superchargers are technically similar to the two previous analogues, but have a number of significant advantages:

smaller weight;
a big degree of reliability when working;
no friction in the compression plane;
application at low temperature mode.

The main ideologist, which engaged in the active implementation of linear type blowers is considered LG. Most often, they are used in refrigerators with the system No frost.having individual temperature regulators in different blocks.

Rotary blower with plates

Rotary (rotary) horizontally or vertically positioned superchargers are equipped with one or two rotors and are analogues of a two-screw juicer, but the helix spiral type is unequal.

Depending on the principle of operation, they are divided into two main classes: with rolling and rotating shaft.

Between the piston and the compressor housing with movable plates, a gap is formed. Due to the eccentricity of the rotor, its value is changed when reproducing rotations, thereby blocking the refrigerant transition from one zone to another

In the first case, the unit is represented by the engine shaft with an induced cylindrical piston, located eccentric relative to the center, that is, is shifted.

Rotation cycles are made inside the cylinder housing. The gap, which is available between the case and the rotor, changes its dimensions during rotation.

In the place of the minimum opening there is a pumping nozzle, maximum - suction. The plate is attached to the roar piston, which is attached to the springs, which blocks the space between the two nozzles.

In the second embodiment, the principle of operation is similar to one difference - the plates are fixed and placed on the rotor. In the process of operation, the piston rotates relative to the cylinder, and the plates rotate with it.

Overall refrigerator algorithm

The functioning of all refrigerators is based on the effects of Freon, acting as a refrigerant. Moving on a closed contour, the substance changes its temperature indicators.

Under pressure, the refrigerant is brought to a boil, and this is from -30 ° C to -150 ° C. Steaming, he captures a warm atmosphere located on the walls of the evaporator. As a result, the temperature in the refrigeration unit is lowered to a specified level.

In addition to the main discharge device, creating pressure in the refrigerator, there are auxiliary elements that perform the specified options:

evaporator, collecting heat inside the refrigeration unit;
capacitorIntroducing the coolant outward;
chrosting device, Adjusting the refrigerant flow by means of a capillary tube and a thermostatic valve.

All these processes are dynamic. Separately, it is worth considering the engine algorithm and the principle of operation during its malfunction.

The compressor is responsible for the system regulation of pressure level drops. A steady refrigerant is delayed in it, which is compressed and pushed back to the heat exchange device.

In this case, freon temperature indicators increase due to which it goes into a liquid state. Compressor functions using an electric motor located in a hermetic case.

Having understood with the device, go to the analysis of the main factors of the compressor breakage, after which it will be necessary to make it dismantling.

The main reasons for the blower breakdown

All problems in the compression node are conventionally divided into two main groups: with a working and non-working motor. The first option looks like this: when you turn on the sound from the compressor, the light bulb is on on the refrigerator. Accordingly, in another embodiment, the unit does not turn on at all.

Cause # 1 - refrigerant leak or thermostat defect

Here the main reason can be enclosed in the leakage of freon.

It is possible to carry out an independent check in this way: to touch the condenser - its temperature will correspond to the room.

Inspection of the degree of heating of the capacitor can reveal one of the causes of the breakfast breakdown - refrigerant leakage. In this case, the device will function, but the temperature in the chambers will not be supported

Another reason is possible - failure. In this case, the signal about the incorrect temperature mode is simply not flowed.

Cause # 2 - problems with winding

If the unit does not turn on, then a possible cause can serve as a compressor winding circuit.

This situation may occur both on the work and on the launcher or on two at once. With the refrigerator on the network, the supercharger does not work, and its temperature of its room block.

Cause # 3 - Mixless Circuit

The device starts, but no more than a minute. And the housing is overly warmed.

At the same time, the coil windings are closed, their resistance is lowered, an increased strength of the current passes through the relay block. The relay turns off the supercharger, a click will be heard. After cooling the penny, it turns on the compressor and so in a circle.

Cause # 4 - Engine Jumping

When you turn on, the operation of the electric motor is heard, but the rotation does not occur, the compressor does not compress, the resistance of the windings at the maximum.

Cause # 5 - valve breakdown

Loss of cooling capacity is associated with valve defects.

As a result of such a breakdown, the unit operates without shutting down and does not create a proper compression level, respectively, the blocks of the refrigeration device do not gain the desired temperature.

Often, in this case, an uncharacteristic ringing of metal parts can be heard when functioning. It is possible to find out this by determining the degree of air supply.

You can confirm the presence of deformation of the valves by fixing the degree of air supply to the compressor. This will require a special device with a manometer.

To make sure the "diagnosis", it will be necessary to cut off the filling pipe using the pipeline. Similar actions are done with a condenser filter.

Now in their place, connect the pressure gauge collector, turn on the supercharger and check the formable level of air compression - the norm of 30 atm.

Cause # 6 - thermal sensor or launcher relay

It is also necessary to check for defects such elements as the thermostatic sensor and.

With this failure, the compressor is either not turned on, or is turned on by 1-2 minutes. When checking the resistance of the windings, nominal values \u200b\u200bwill be recorded.

Phased process of self-replacement

If the reasons for failures in the work are not determined, the repair itself is subject to the repair. And to begin with, it will be necessary to extract from the refrigeration unit and check the performance.

Stage # 1 - We carry out the displacement

There is a compressor behind the refrigerator in its lower part.

The following tools will be applied during dismantling:

pliers;
spanners;
plus and minus screwdrivers.

The supercharger is located between the two nozzles connected to the cooling system. With the help of pliers, they will need to be bought off.

No pipes for which the refrigerant circulates, in no case cannot be cut off with a hacksaw, because the process will definitely be formed in the process, which, when entering the capacitor, will move through the system, thereby leading to a rapid failure of its elements

The refrigerator is triggered for 5 minutes during which freon goes into condensate state. After the filling line connects the valve with a hose connected to the cylinder. For 30 s with an open valve, the entire refrigerant will be pulled.

After removing the relay block. It can be visually compared with a conventional black box with wires coming from it.

First of all, the top and bottom are taught on the penny - it will be useful in the process of reverse installation. By rejuving the locks and removed from the traverse, also snack the wiring leading to the fork.

All fasteners are unscrewed with the overview device. We clean all the tubes for soldering a new device.

Stage # 2 - Measure the resistance to the ometer

In order to make sure the performance of the component element, we will produce an external inspection, as well as testing and verifying its individual components. First of all inspect the state of the motor. This can be done using a multimeter or an omeme.

As mentioned earlier, the feed cable is initially checked. If he is working, examine the supercharger itself. To do this, use the tester.

The correctness of the functioning of the compressor can be checked with a handicraft method using charging: minus probes wear on the bulb case with a nominal value of 6 V. Plus connect to the upper leg of the power winding and concern each of them the base of the light bulb. If you manage, all of them must give the lamp illumination

First, remove the protective block and remove the content, disconnect from the starting relay. Next, using the multimeter probe, we produce pairs of wiring.

The results obtained with the table in which the optimal indicators are specified for this compressor model.

The data of the serviceable device in the standard version will be the following: between the upper and left-sided contact - 20 ohms, the upper and right-sided - 15 ohms, left-hand and right-hand - 30 ohms. Any deviations indicate breakdowns.

The resistance between the passing contacts and the case is checked. Recreation readings (infinity sign) indicate the serviceability of the device. If the tester issues any indicators, most often it is zero, - there are faults.

Stage # 3 - Check current strength

After checking the resistance, you need to measure the current. To do this, connect the start relay and turn on the electric motor. Tester tick clamp one of the network contacts leading to the instrument.

When working with the compressor, it is initially inspected on the subject of the tribute to the casing, since there is a probability of shocking in case the winding gives voltage to the body

The strength of the current must be identical engine power. For example, a power motor 120 W corresponds to the strength of the current in 1.1-1.2 A.

Stage # 4 - Cooking Tools and Equipment

To replace the faulty refrigerator compressor, you need to prepare such a set of tools and materials:

portable regeneration station, refueling and evacuation;
apparatus for welding or with cylinder Marr gas;
compact;
ticks;
hanzen coupling for a sealing compressor compressor with filling pipe;
copper pipe 6 mm;
filter-absorber for mounting at the entrance to the capillary tube;
copper alloys with phosphorus (4-9%);
bura soldering as a flux;
cylinder with freon.

Also, the attention should be focused on safety measures when working with repair equipment. First of all, you need to equip an insulating platform and turn off the refrigeration unit from the power supply.

Removing the old compressor, you must prepare and clean all copper pipes for subsequent spikes with a new device.

After each refueling by freon, before performing the soldering room is ventilated for a quarter of an hour. It is not allowed to include the heating devices in the room where the repair is made.

Stage # 5 - Mount New Compressor

First of all, it is necessary to attach a new supercharger on the traverse of the refrigeration unit. Remove all plugs from pipes that come from the compressor and check the pressure of the atmosphere in the device.

To depict it no earlier than 5 minutes before the soldering process. Then, carry out the connection of the compressor pipes with the injection, sucking and filling lines, their length is 60 mm, and the diameter of 6 mm. Picked tubes is performed according to the order: filling, removing excess refrigerant and discharge.

Now we remove the plug from the drain filter and install the last on the heat exchanger, inserting the throttle nozzle into it. Separate seams of two contour elements. At this stage, we dress the Hansen clutch on the refueling hose.

Stage # 6 - Run refrigerant to the system

To refrigerate the refrigeration system by Freon to the refueling line with a clutch we connect a vacuum. For the primary launch, bring to the pressure of 65 Pa. By installing a protective relay on the compressor, contacts are switched.

The vacuum process is the creation of a compression level in the cooling unit below atmospheric. Reducing pressure in this way, all moisture is removed

Connect the refrigerator to the power supply and fill the refrigerant by 40% of the norm. This value is specified in the table located behind the device.

The unit is included for 5 minutes and the connecting nodes are checked for tightness. Then you need to turn off again from meals.

The refrigerant is refilled in a liquid state. The required amount is indicated by the manufacturer in the refrigeration device parameters placed on the back wall

Perform the second time vacuuming to a residual value of 10 Pa. The duration of the procedure is at least 20 minutes.

Include the unit and make a complete filling of contour by freon. At the finish stage, we can serve the tube by the method of expressing. Remove the coupling and sear the nozzle.

Soldering two pipes produced from copper, carried out with copper alloy with phosphorus (4-9%). Docked elements are placed between the burner and the screen, heated it to the cherry blossom.

The heated is lowered into flux and melted by pressing the rod to the heated docking area.

The control inspection of the solder joints is made from all sides with the help of a mirror. They must be holistic, without gaps

Compressor service declared by manufacturers is 10 years. However, his breakdowns are inevitable.

In the event of a fault, the supercharger can be replaced by a broken compressor independently, after reading all the safety rules and stages of the upcoming work. Also, for these purposes, it is necessary to stock the necessary equipment.

If you have any questions about self-eliminating breakdowns, ask them to our experts in the comments to this publication.

When making a step-by-step diagnosis of your Atlanta, did you establish that the reason for breakage in the compressor?

Remember physics

From the school year of physics, we know about the device internal combustion engine. The compressor functions in the same way. The scheme of its work for Indesita or Atlanta is the same. The piston and the valve system are compressed by Freon, sending a heated refrigerant into a capacitor. There he goes into a liquid state, enters the capillary expander. The compressor compresses Freon, then cools the gas in the condenser, providing its circulation in the refrigeration system. The process has a continuous cyclic character. The compressor is turned off, including from time to time to perform the refrigerant compression function.

What is your refrigerator - the Belarusian Atlant or the indesitis assembled on Italian patent, they all have the same motor, a similar device of internal circuits. In Atlanta and indisiest applies piston-type compressors. The piston compressor is equipped with an electric motor with a vertical shaft. Design is isolated with a hermetic casing. The motor turned on starts the crankshaft, which, rotating, moves the piston. The piston refrigerant is pumped out of the evaporator and is injected into the condenser.

Where to start replacing the refrigerator compressor do it yourself

Repair of refrigerators and the replacement of the compressor can be made independently by setting the cause of the fault. If, after switching on the network, the compressor heats up, most likely failed the thermostat relay. Replacing the refrigerator compressor relay is carried out even amateur. The motor when starting the refrigerator is suddenly disabled without a reason? Replace the refrigerator compressor motor better leave professionals.

But you can try to replace the entire compressor.

What do you need

Check out the video and photo of the phased process of replacing the refrigerator compressor with their own hands.

After prepare the necessary tool:

oxygen-propane burner;
two valves: for piercing and select refrigerant;
flower
electronic thermometer;
truboresis of small size;
filter-desiccant:
copper tube 6 mm;
solder;
flux;
presslers;
hansen Coupling;
charging cylinder;
capacity-drive for freon;
new compressor.

Observe security measures. Do not start working when the device is turned on. Repair equipment must be grounded. Work is made with gas - the room should be well ventilated. Free the refrigerator so that you can easily raise it and turn it.

Work process

When replacing the compressor of the Atlant refrigerator, any other refrigeration unit must be slightly extending the compressor. Raising it, break out the filtering tube, pre-having finished it with a file.

Then you need to release gas. Turn on the refrigerator no more than 5 minutes. The refrigerant will move to the condenser. Attach the piercing valve with the hose connected to it from the cylinder, unscrew it for 30 seconds. Gas will be gathered in the container.

Sold copper on the place of a broken tube. Here the gas burner is involved, for the absence of the burner - the soldering iron is suitable. On the capillary expansion, an incision is performed in several centimeters to break down the tube and dig filter from the condenser. The compressor attaches to the refrigeration unit with two tubes (one - for pressure injection, the other is to remove excess gas).

It must be disappeared from these tubes or cut off the pipeline. The filter-desiccant is cut off at a distance of 15 mm from the condenser. Remove the start-deficent relay. Remove the compressor and remove it from the refrigeration cabinet. Before starting the soldering of the new compressor, clean the pipeline.

When installing a new compressor, all actions are repeated in reverse order:

place the compressor in the refrigeration cabinet, securing it on the traverse;
plugs on the nozzles must be removed;
it is important to depress the unit for 5 minutes before soldering;
when removing the plugs, check if there is no overpressure of air in the compressor (it will indicate the noise of the outgoing air;
preamedly connect the discharge, sucking and filling tube to the compressor nozzles, the filling tube must be a diameter of 6 mm and a length of 60 mm;
getting started to solder seams on the tubes, sticking to the following sequence: refueling, sucking, injection, make sure that the flame burner does not go inside the compressor pipe;
removing the plug from the dryer filter, attach it to the condenser, connect the capillary tube to it;
sleep filter by seam;
and the refueling tube is valve highway;
check the quality of the soldering of all seams, they must be smooth, without non-frosting spaces;
frauna refueling, connecting the vacuum-filling station to the coupling and removing the moisture system;
strengthen the burst relay on the compressor, connecting the electrical pipeline;
turn on the refrigerator, fill in the freon system, leave for 5 minutes;
the flower to check whether the seams are not disturbed;
complete refrigerator vacuuming, leave for 20 minutes;
pull the refueling tube, remove the coupling, take the tube.

RESULTS

Your refrigerator is ready to work, run the motor. After you need to check the functioning of the relay. If it starts, then you coped with the task.

By purchasing positive experience with your own hands, you can now give advice if a similar problem arises from someone from your loved ones or friends. And in difficult times you can earn money by completing the operation no longer difficult for you to repair the refrigeration unit.

The cost has a study nature and develops from the price of the compressor, the cost of consumables and work, in the case of air conditioners, work on dismantling and installing an external block is added.

The main criteria on which the price is depends - the cost of the equipment itself, its brand, type and power.

In which devices compressors are changing:

Conditioners
Ice generators
Drying air
Refrigerators
Freezing chambers
VRV and VRF systems
Chillera
Rufta
Refregnients
Lyophilic dryers

Replacing compressors in the refrigerator

In refrigerators in the overwhelming majority, low-power piston non-communicator compressors are used in a hermetic case. The cost of such compressors is small, as the time required to replace them - about 40 minutes, along with all the works.

But recently the number of inverter compressors (with electronically controlled) and linear compressors (from LG products) increases, the cost of such compressors is higher than normal.

Replacing the compressor in air conditioner

The main type of compressors used in air conditioners - rotary hermetic compressors with a capacity of 2.0 - 14.0 kW. The type of control is not inverter in earlier models and inverter in the release models of recent years. Also a large percentage of spiral compressors.

The feature of the compressor replacement in the air conditioner is the need to dismantle the external block, followed by its installation to the previous place, which increases the cost. Otherwise, all work is the same as on other refrigeration equipment.

Replacing the compressor in dryers

In desiccants, medium-temperature and high-temperature piston and rotational compressors are used.

Spiral compressors are used in powerful installations.

Compressor replacement work

When replacing the following works are carried out:

Diagnostics
Evacuation of refrigerant
Dismantling compressor
Flushing system
Spike compressor
Wpai Filter
Refill refrigerant
Additive in the refrigeration contour of anti-cylinder additives
Running system

Compressor selection

There are two ways to solve the issue with the selection of the compressor - to purchase an original compressor or its functional analogue.

The first case is the easiest, since in this case it will definitely suit and there will be no problems with adaptation - fitting the fasteners, the attack of the transition clutch on the suction and discriminating compressor highway, eliminate problems with excess vibration, etc.

But this is not always possible for a number of reasons - the cessation of production of these products, restricting the budget of work or a long delivery time in case of urgency of repair work.

In this case, it is quite possible to choose a similar compressor of another type and manufacturer, and more than a better analogue can be cheaper than the original.

Main characteristics for selection:

compressor power
type of refrigerant (freon)
gabarits.

Compressor Protection Events

So that the new compressor fails to be sure to protect it. For this, anti-seed filters are installed, dehumidifiers filters, anti-seed additives are added.

It is also necessary to eliminate all the reasons for the failure of the compressor, if they were:

Eliminate Freon Leaks
Install Carter Heater
Mount the oil loop
Return oil refund to compressor
Install protection from stress reduction in the network

The main part of each refrigerator after the cabinet is the compressor. Usually they will not break down for many years, but sometimes, due to voltage jumps in the network, the refrigerator may fail.

Your refrigerator stopped working, and you want to replace the compressor.

As a rule, masters have many years of experience of replacing the compressor, however, often comes yesterday's student of short-term courses, whose qualification is zero, so you need to know about some important nuances:

Choosing a new compressor. It is better to buy the compressor of the same company, then there will be no problems. If you have chosen an analog, then watch carefully that the technical characteristics of the new compressor exactly coincide with the compressor indicators installed by the manufacturer.
Pay attention to the cooling capacity of both compressors. They must completely coincide. This can be found by checking the working schemes of the old and new compressor. Sometimes you can choose a more powerful compressor, but this is provided that all other indicators are identical.
Check if your refrigerator has an oil shock system. If there is, then the new compressor must also have such a system. If you choose the compressor of another model, then in this case the heat exchanger serpent will not work.
It is important to remember that there are compressors with a low and high launcher. If there is a capillary tube in your refrigerator, then you need to install the LST compressor (low launcher). If there is only a regulatory valve in your refrigerator to adjust the pressure, then the HST compressor (high starting mechanism) is suitable.

Sequence of work

Initially, the refrigerator is turned off from the network. Very careful, so as not to break the steel tubes, wounded these tubes to appear gap. Then carefully lift the compressor and push it ahead. No more than 5 cm.
Next, remove the entire refrigerant from the compressor. To do this, it is necessary to have a piercing valve and a special cylinder on which there is a vacuum. If your compressor can still work a little, it will greatly facilitate the task of the wizard. Then this procedure takes no more than 5 minutes. Pump the refrigerant to the condenser. The master is overwhelmed with a refueling tube, and the capillary just climbs. Then includes a refrigerator, and it works for 4 minutes. Then neatly pins the filter-desiccant, takes the valve, fixes it and attachs to the balloon. Opening the cylinder, he without difficulty will pushing the entire refrigerant into it.
Now a special soldering iron is needed, in order to disappear filter-desiccant from the capacitor and then replace the refueling tube. It is recommended to use a copper tube, the diameter of which is 6 millimeters, and the length is 10-15 centimeters. Then the master embarks the final dismantling of the compressor. At the last stage, it must dump, clean and put the plugs on the injection and suction tube.
Plugs stand on a new compressor. The master cleans them and attach the ends of the refrigerator pipeline with the ends of the tubes on the compressor. Then soldes the connection location. He also needs to solder a new filter desiccant. When he cope with it, he should cover those places where soldered, enamelled paint.
Then, according to the instructions, the wizard will fill the compressor with a refrigerant. Only the required volume is used. It will be done through a refueling tube.

Repair of the refrigerator can be carried out personally, but for this you need to have defined skills and knowledge. An important part of the preparation for repair is diagnosed, and for this it is necessary to know the principle of operation of the refrigerator. Let's try to figure out how the scheme of the work of this common household device is organized.

Scheme of the refrigerator

The refrigerator can be divided into three large components. The failure of one block makes the entire refrigerator, but does not affect the operating status of other elements. The freezer consists of an evaporator, a condenser and compressor. The compressor includes a relay and motor.

The system of work is closed. The refrigerant rolls out from the evaporator using the compressor, and then fed to them under the influence of high pressure into the capacitor. In the condenser, it is undergoing cooling, which contributes to the transition from the gaseous state into liquid, and then again moves to the evaporator, it stains the natural way. So work is repeated continuously.

Unlike other components, the compressor is not constantly in the on state. It comes to the operating status on the signal from the temperature sensor when the temperature in the refrigerator exceeds the allowable rate. In order, the relay drives the engine, as a result of which the compressor begins to perform its operating function. When the temperature begins to match the norm, the relay is turned off.

The first external sign of the improper operation of the compressor is to increase the temperature in the refrigeration chamber, up to its defrosting. Before you begin to repair the compressor with your own hands, you need to figure out what the device is a malfunction. It's not easy to get to the compressor - it is hermetically closed with a casing where it is in oil.

Most compressors have a similar device. The main components are the motor and launcher relay. The relay closes when the signal arrives from the sensor and starts the motor. If the motor does not start, the system does not function. In most cases, the problem with the non-working compressor is in the motor. In such a situation, you need to put a new engine, a little less often need a complete replacement of the refrigerator compressor. We will analyze cases where the repair and replacement of the refrigerator compressor is easier to make it easier.

Check current and resistance

The cause of the malfunction can serve as a cable, not so rarely source of serious problems becomes a banal breakdown. Cable replacement is the most simple situation of those when the repair can be useful. In any case, before starting any works, you need to check the current and resistance in order not to get injured.

To check the resistance, you need to find a place without paint or a little erase it with your own hands. Attach the multimeter to the contact and to the body, the device should not show any values, otherwise the refrigerator compressor repair is quite dangerous. If you work with the motor and launch relay, precautions should be observed.

To check the current, the working relay is necessary, that is, before the start of the test you must be confident in its performance. Check the current is more convenient than the multimeter, where the contact is performed by ticks. When the engine power is 140 W, the current is 1.3 amps. The ratio of magnitudes remains the same with other engine power parameters.

All malfunctions in the device can be divided into two types. In the first case, everything works at first glance well, that is, the engine is buzzing, the light burns. The reason may be refrigerant leakage, check it quite simply with your own hands. It is enough to touch the condenser, it should be very hot. When leakage refrigerant leakage, the capacitor will be room temperature. The second most common cause is a breakage of the thermostat, that is, the signal to increase the temperature simply does not come.

If the refrigerator does not turn on at all, then in 20% of cases, the problem is reduced to the motor breakage. If the motor is working, but it is necessary to repair the refrigerator compressor with your own hands, you need to sequentially check the main elements - the thermal sensor and relay. Each device is replaced by breakdown. If everything works well, it is necessary to change the compressor itself, tell me how to do it with your own hands.

How to replace the compressor?

To repair the compressor with your own hands, you need to prepare the appropriate tools:

storage for freon;
piercing and selection valves;
burner.

The compressor must be pulled out and lift a little and pass the refueling pipe. The device is started for five minutes during which freon completely passes into the condenser. The piercing valve connects to which the hose from the cylinder is connected. The valve is unscrewed for 30 seconds, this time is enough to collect all the gas.

Instead of the filling pipe, you need to solder copper, it is for these purposes that the burner is used, but you can use the usual soldering iron. Then on the capillary expansion is made with a long multiple centimeters, then the tube breaks, and the filter is disappeared from the condenser.

Now you need to completely disconnect the compressor from the pipes (most often there are two of them - to discharge the pressure and suction of excess gas), that is, the compressor must be disappeared. To install the new compressor, you need to repeat all the actions in the reverse order. After all the works, make sure that the relay works. If the launch occurred successfully, it means everything was done correctly.