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Atlant refrigerators are popular not only in the native Belarusian market, but also abroad. They work well, are easy to use and are affordable. But, like any other complex equipment, a refrigerator can break down over time.
In our article we will look at the reasons why the Atlant refrigerator most often does not work. We'll tell you how to diagnose the problem yourself.
But for repairs it is better to contact a trusted service. This is a guarantee of safety and reliable operation of the equipment after the fault has been fixed by the technician.
Pipeline blockage: how to fix it?
Thanks to the capillary pipeline, the freon (refrigerant) maintains different pressures. When it enters the pipeline the pressure is equal to the condensate pressure. As it moves, it drops to boiling pressure. And at the exit the agent boils in the evaporator.
But the agent does not travel through the pipe alone, but together with the compressor oil. This is why paraffins appear on the walls of the pipeline. When there are a lot of them, a blockage forms.
Signs of a malfunction in the Atlant refrigerator:
- The motor is running, but the temperature in two chambers is higher than normal.
- The indication is on.
- Or there is an error H on the display.
What to do:
- To eliminate such a malfunction in the Atlant refrigerator chamber, you need to replace the capillary pipeline. The technician will also change the filter along with it. Then it will create a vacuum and fill it with new freon.
- When the blockage is partial, you can try to remove it with a jack.
Step-by-step self-replacement process
If the causes of malfunctions are not determined, the supercharger itself must be repaired. First, you will need to remove it from the refrigeration unit and check its functionality.
Stage #1 - we dismantle the supercharger
The compressor is located at the back of the refrigerator in its lower part.
The following tools will be used during the dismantling process:
- pliers;
- spanners;
- positive and negative screwdrivers.
The supercharger is located between two pipes connected to the cooling system. You will need to bite them off using pliers.
Under no circumstances should the pipes through which the refrigerant circulates be sawed off with a hacksaw, because in the process small chips will certainly form, which, when they enter the condenser, will move throughout the system, thereby leading to rapid failure of its elements
The refrigerator is started for 5 minutes, during which the freon turns into condensate. Afterwards, a valve with a hose connected to the cylinder is connected to the filling line. In 30 seconds, with the valve open, all the refrigerant will be released.
Then remove the relay block. Visually, it can be compared to an ordinary black box with wires coming out of it.
First of all, the top and bottom of the launcher are marked - this will be useful during the reinstallation process. Having unscrewed the fasteners and removed it from the traverse, we also cut through the wiring leading to the plug.
We unscrew all the fasteners together with the viewing device. We clean all the tubes for soldering the new device.
Stage #2 - measure the resistance with an ohmmeter
In order to verify the functionality of the component, we will perform an external inspection, as well as testing and testing of its individual components. First of all, we inspect the condition of the motor. This can be done using a multimeter or ohmmeter.
As mentioned earlier, the power cable is first checked. If it is working, we will examine the supercharger itself. To do this, we will use a tester.
The correct functioning of the compressor can also be checked using a homemade method using charging: we put the negative probes on the body of a 6 V light bulb. We connect the plus ones to the upper leg of the power winding and touch each of them with the base of the light bulb. If they are working properly, they should all illuminate the lamp.
First of all, we remove the protective block and remove the contents, disconnecting it from the starting relay. Next, using the multimeter probes, we measure the wires in pairs.
We compare the results obtained with the table, which shows the optimal indicators for this particular compressor model.
The data for a working device in the standard version will be as follows: between the top and left-side contacts - 20 Ohms, top and right-side contacts - 15 Ohms, left and right-side contacts - 30 Ohms. Any deviations indicate breakdowns.
The resistance between the feed-through contacts and the housing is checked. The indication of a break (infinity sign) indicates the serviceability of the device. If the tester produces any indicators, most often it is zero, there are malfunctions.
Stage #3 - checking the 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. Using the tester's pliers, we clamp one of the network contacts leading to the device.
When working with a compressor, it is initially inspected for breakdown of the casing, since there is a possibility of electric shock if the winding supplies voltage to the housing
The current must be identical to the motor power. For example, a 120 W motor corresponds to a current of 1.1-1.2 A.
Stage #4 - preparing tools and equipment
To replace a faulty refrigerator compressor, you need to prepare the following set of tools and materials:
- portable regeneration, filling and vacuum station;
- welding machine or torch with a MAPP gas cylinder;
- compact pipe cutter;
- mites;
- Hansen coupling for a hermetically sealed connection between the compressor and the filling pipe;
- copper pipe 6 mm;
- filter-absorber for installation at the entrance to the capillary tube;
- alloys of copper with phosphorus (4-9%);
- soldering borax as a flux;
- freon bottle.
You should also focus on safety measures when working with repair equipment. First of all, you need to arrange an insulating area and disconnect the refrigeration unit from the power supply.
Having dismantled the old compressor, it is necessary to prepare and clean all copper pipes for subsequent soldering with the new device
After each refill with freon, before soldering, the room is ventilated for a quarter of an hour. It is not allowed to turn on heating devices in the room where repairs are being made.
Stage #5 - installing a new compressor
First of all, you need to attach the new blower to the cross-arm of the refrigeration unit. Remove all plugs from the tubes coming from the compressor and check the atmospheric pressure in the device.
Depressurize it no earlier than 5 minutes before the soldering process. Then we connect the compressor pipes with the discharge, suction and filling lines; their length is 60 mm and their diameter is 6 mm.
During soldering, do not direct the burner fire inside the nozzles, since there are plastic elements on the suspension and muffler of the supercharger
The process of soldering the tubes is carried out according to the order: filling, removing excess refrigerant and discharge.
Now we remove the plugs from the filter drier and install the latter on the heat exchanger, inserting the throttle pipe into it. We seal the seams of the two contour elements. At this stage, we put a Hansen coupling on the filling hose.
Stage #6 - add refrigerant to the system
To fill the refrigeration system with freon, connect a vacuum to the filling line with a coupling. For initial start-up, bring to a pressure of 65 Pa. By installing a protective relay on the compressor, the contacts are switched.
The evacuation process is the creation of a compression level below atmospheric in the cooling unit. By reducing the pressure in this way, all moisture is removed
Connect the refrigerator to the power supply and fill it with refrigerant to 40% of the norm. This value is indicated in the table located on the back of the device.
The unit is turned on for 5 minutes and the connecting nodes are checked for leaks. Then it must be disconnected from the power supply again.
The refrigerant is charged in a liquid state. The required quantity is indicated by the manufacturer in the parameters of the refrigeration device located on the rear wall
Perform evacuation a second time to a residual value of 10 Pa. The duration of the procedure is at least 20 minutes.
Turn on the unit and completely fill the circuit with freon. At the final stage, we preserve the tube using the clamping method. Remove the coupling and solder the pipe.
If you have never done such work, we recommend that you study in more detail the process of filling your refrigerator with freon yourself.
Compressor failure on Atlant refrigerator
How to repair the compressor in the Atlant refrigerator?
The function of the compressor is to ensure that freon passes through the pipeline properly. The Atlant refrigerator compressor may not work because:
- The winding has broken.
- The winding has shorted out.
- It gets stuck when the motor hums and there is no pressure.
Signs by which you can understand that the Atlant refrigerator compressor has failed:
- It turns on, but then immediately turns off.
- Works with sound, but the agent does not move through the pipe.
- It does not turn on, but there is light in the refrigerator.
- The indicator on the refrigerator is on.
- Or there is an error on the panel.
What to do:
- Replace the motor, filter and refill the refrigerator with freon.
Schemes and principles of operation of a two-chamber single-compressor
A refrigerator compressor consists of an electric motor with a vertically mounted rotor and a piston that compresses the refrigerant. These components are housed in a metal housing made of two halves. They are welded together; replacement of elements is not provided. In case of breakdown, the entire compressor is replaced completely.
The motor is controlled using a relay. It is connected to temperature sensors that analyze the conditions in the cooking chamber and in the freezer.
In modern models, the electrical circuit contains an additional ground loop.
A household single-compressor refrigerator uses isobutane or freon as a refrigerant. The gas is under pressure in the cooling circuit. On the back of the device there is a tube for refilling it if necessary.
View » What noise level should a refrigerator have?
The refrigerant in liquid state is pumped by the compressor into the condenser. There it is compressed, and the condenser radiator removes the excess heat that is released. During the compression process, moisture is also released, which is removed by a filter at the bottom of the heat exchanger. Through the capillary channel, the substance enters the evaporator of the freezer. There the refrigerant transitions from liquid to gaseous state. The gas enters the compressor through the tubes.
The fundamental difference between a single-chamber refrigerator with one compressor and a two-chamber Atlant is that the latter has a partition between the working chambers. Each of them has its own evaporator, they are cooled separately.
Atlant refrigerator thermostat malfunction
How to fix the thermostat in the Atlant refrigerator?
If the freezer in the Atlant refrigerator does not work, most likely the problem is the thermostat. It is he who is responsible for cooling.
Signs of a thermostat malfunction in a two-chamber Atlant refrigerator:
- Camera does not work.
- The Atlant refrigerator does not turn off.
- It starts sometimes, but the degree is high, which can be understood by the active light bulb.
What to do:
- Install a new thermostat.
System malfunction full no frost
Malfunctions of the No Frost system in the Atlant refrigerator
The full no frost system consists of a sensor, a heating element, a timer and a fuse. The evaporator is located in the freezer, and the upper chamber is cooled by the fan.
If the equipment works correctly, then at a low temperature the sensor is triggered and turns on the heating element so that the ice begins to melt. Therefore, with the no frost function, manual defrosting is not necessary. If the system breaks down, the evaporator becomes covered with an ice crust and the cold does not enter the chamber.
Signs:
- There is a lot of ice in the freezer.
- The refrigerator compartment of the Atlant refrigerator does not work.
- There is an error H on the display.
If you defrost the refrigerator, it will work for a couple of weeks, but then the same problems will appear again.
What to do:
- Contact the service to have a technician repair the No Frost system.
Freon leak in Atlant refrigerator
Freon leak in the Atlant refrigerator
If your Atlant refrigerator is more than five years old, most likely you will encounter a problem such as a freon leak:
- Drip evaporator . A part made of aluminum eventually deteriorates, cracks, and the agent leaves.
- Freezer heating circuit . It is made of steel. During operation, the metal rusts, especially if there is high humidity, and leakage occurs.
- Connections . Depressurization occurs, and the agent escapes through small cracks.
Useful tips for soldering seams
Soldering of two pipes made from copper is carried out using an alloy of copper and phosphorus (4-9%). The docked elements are placed between the burner and the screen, heating it to cherry color.
The hot solder is dipped into the flux and melted by pressing the rod towards the heated joining area.
Control inspection of solder seams is carried out from all sides using a mirror. They must be complete, without gaps
For soldering tubes made of steel or its alloy with copper, solder containing silver is used. The soldering element is heated to red.
After the seam has hardened, it is wiped with a damp cloth to remove flux residues.
Leak in drip evaporator
Leak in the drip evaporator of the refrigerator
The drip system works like this: when the motor is operating, frost appears, which melts when the compressor is turned off and there is a plus in the chamber. Melting frost flows through the drain into a container on the motor.
At the same time, the evaporator is often made of aluminum, which means it deteriorates over time. And the agent leaves through small cracks.
Signs:
- If there are two compressors, then the refrigerator may not freeze, but Atlant’s freezer will work well. Although the compressor is working. Maybe ice. And if you don’t turn it off, then after a while the motor will also fail.
- If there is only one compressor, then the Atlant refrigerator stops working. The compressor is running smoothly or is faulty. The condenser does not heat up, there may be ice.
What to do:
- Replace the evaporator.
- Check for leaks.
- Apply a vacuum to release air and remove moisture.
- Refill with agent.
The main causes of supercharger failure
All problems in the compression unit are conventionally divided into two main groups: with a working and non-working motor. The first option looks like this: when you turn it on, you hear a sound from the compressor, and the light on the refrigerator lights up. Accordingly, in another embodiment, the unit does not turn on at all.
Reason #1 - refrigerant leak or thermostat defect
Here the main reason may be a freon leak.
You can carry out an independent check in this way: touch the capacitor - its temperature will correspond to room temperature.
Inspecting the heating level of the condenser can reveal one of the causes of refrigerator failure - refrigerant leakage. In this case, the device will function, but the temperature in the chambers will not be maintained
Another possible reason is the failure of the thermostat. In this case, a signal about incorrect temperature conditions will simply not be received.
Reason #2 - problems with the winding
If the unit does not turn on, a possible reason may be an open circuit in the compressor windings.
This situation can occur both at the working and at the starting stage, or at both at once. When the refrigerator is plugged in, the blower does not work, and the temperature of its unit is room temperature.
Reason #3 - interturn short circuit
The device starts up, but for no more than a minute. And the body heats up excessively.
In this case, the winding turns are closed, their resistance is reduced, and an increased current flows through the relay unit. The relay turns off the supercharger and a click will be heard. After the starter has cooled, it turns on the compressor again and so on in a circle.
Reason #4 - engine jamming
When turned on, you can hear the operation of the electric motor, but there is no rotation, the compressor does not perform compression, and the winding resistance is at maximum.
Reason #5 - valve failure
Loss of cooling capacity is associated with defective valves.
As a result of such a breakdown, the unit operates without shutting down and does not create the required level of compression; accordingly, the units of the refrigeration device do not reach the required temperature.
Often in this case, an uncharacteristic ringing of metal parts may be heard during operation. This can be determined by determining the degree of air supply.
The presence of valve deformation can be confirmed by recording the degree of air supply to the compressor. To do this you will need a special device with a pressure gauge.
To make sure of the “diagnosis”, you will need to cut off the filling pipe using a pipe cutter. We perform similar actions with the capacitor filter.
Now we connect a pressure gauge manifold in their place, turn on the supercharger and check the level of air compression being formed - the norm is 30 atm.
Reason #6 - temperature sensor or start relay
It is also necessary to check for defects such elements as the temperature control sensor and the start relay.
With such a failure, the compressor either does not turn on or turns on for 1-2 minutes. When checking the resistance of the windings, the nominal values will be recorded.
Leak in freezer heating circuit
Leak in the freezer heating circuit
The tube along the freezer circuit in the Atlant two-chamber refrigerator is needed to allow condensation to escape, otherwise the system will not work. Thanks to the tube, the chamber heats up and condensation does not accumulate. The pipe is made of metal, so over time it will wear out, causing loss of agent.
Signs of a leak:
- Rust.
- High temperature in the freezer and/or refrigerator.
- The engine runs smoothly or does not start.
- Ice.
What to do if the Atlant refrigerator does not turn on due to a leak in the circuit:
- Trim the outline.
- Solder the pipe.
- Change the filter.
- Create a vacuum.
- Refill with freon.
Compressor relay fault
How to repair the compressor relay of the Atlant refrigerator?
The relay has two important functions: it helps start the capacitor and protects the refrigerator when the voltage increases. The jump may be due to a short circuit. And then the relay breaks the circuit and turns off the motor.
Signs:
- The Atlant two-chamber refrigerator does not turn on or turns on and off.
- The light comes on.
What to do if the cause of the malfunction of the Atlant refrigerator is in the relay:
- Buy a new part.
Damage to the seal in the Atlant refrigerator
How to fix the seal of an Atlant refrigerator?
When the seal is damaged, the door cannot be closed normally and warm air from the room passes into the chamber, which can cause the Atlant refrigerator to break.
Signs:
- The door does not close tightly.
- The Atlant refrigerator motor constantly works and does not turn off.
- The light is active.
- Or error H.
- The refrigerator beeps.
What to do:
- Install a new seal.
Sound alarm
When the door is open for more than 1 minute, the 2-chamber device begins to notify the owner about the open door. Prolonged downtime in this condition can lead to damage to the equipment and products contained in it.
Atlant refrigerator doors
The sound on models with touch controls can be turned off using a special button.
