Disassembling an LG refrigerator begins with the mandatory disconnection of the device from the electrical network and emptying the internal space of food. To carry out high-quality diagnostics or replace a failed unit, such as a compressor, evaporator or defrost heating element, you need to gain access to the technical compartment located on the rear panel of the unit. Improper dismantling can result in damage to the copper refrigerant pipes or loss of system seals, which will require costly refilling with freon.
The process of removing panels and internal elements requires a basic set of tools and strict adherence to the sequence of actions described in the manufacturer's technical regulations. Depending on model LG, be it a classic two-chamber version or a system No Frost, the design of fastening elements may differ slightly, but the general principle remains the same. Before starting work, it is important to prepare a container to collect water, since condensation may remain in the drainage system, which will leak out when tilting or moving the unit.
Work safety is ensured by using dielectric gloves and checking that there is no voltage on the contacts before touching electrical components. Disassembling the housing is necessary not only for repairs, but also for deep cleaning of the ventilation system and removal of ice plugs blocking air circulation. It is strictly forbidden to cut through or bend the capillary tubes at an acute angle, as this will instantly damage the refrigerator.
Necessary tools and workplace preparationTo successfully dismantle LG refrigeration equipment, you will need a specialized tool that allows you to work with various types of fasteners. The main tool is a Phillips screwdriver, since most screws in the design have a corresponding slot, however, in some models there may also be screws with a hexagon head. In addition to screwdrivers, you need to prepare needle-nose pliers for gripping small parts and side cutters for removing the plastic clamps that secure the wiring harnesses.
The workplace must be well lit and have sufficient area to accommodate the removed panels and assemblies in the order in which they are dismantled. It is recommended to cover the floor with a soft cloth or cardboard to avoid scratches on the decorative coatings of the removed parts and to prevent the loss of small screws that could roll on a hard surface. It is also worth having a container of water and a rag on hand to quickly remove moisture formed when the evaporator defrosts during repair work.
- 🛠️ A set of screwdrivers (phillips and flathead of different sizes) for unscrewing the case screws.
- 🔧 Sliding wrenches or a set of sockets for removing nuts from the compressor and fastenings.
- ✂️ Nippers or side cutters for carefully removing disposable plastic ties.
- 🧤 Dielectric gloves for protection against electric shock.
It is important to provide free access to the back of the refrigerator from all sides, moving it away from the wall at least one meter. This will allow you to easily walk around the unit, checking the condition of the tubes and electrical connections during disassembly. Lack of haste and having all the tools at hand significantly reduces repair time and minimizes the risk of accidental damage.
Removal of the rear technical panel and access to componentsThe first step in physical disassembly is to remove the metal cover covering the compressor and condenser circuit. The fasteners holding the panel are usually located around the perimeter of the sheet and can be hidden under decorative plugs or plastic clips that require careful prying with a flat-head screwdriver. After removing all visible screws, the panel must be pulled back slightly and lifted to remove it from the lower guide grooves without damaging the paintwork.
Rear panel internals
Under the panel there is a compressor, start relay, condenser and filter drier. In some models, there is also a capillary tube that requires careful handling.
Rear panel internals
Under the panel there is a compressor, start relay, condenser and filter drier. In some models, there is also a capillary tube that requires careful handling.
Inside the technical compartment there is access to the main units that ensure the operation of the refrigeration system. Here is located compressor, which is the heart of the system, and a capacitor in the form of a coil, mounted on a metal sheet or located separately. A careful inspection of this area allows you to visually assess the condition of the wire insulation, the absence of oil traces indicating a freon leak, and the integrity of the electrical connections.
⚠️ Caution: Before removing any electrical components such as the start relay or sensors, be sure to ensure that the power cord is unplugged. Residual voltage in capacitors can be dangerous, so it is recommended to wait a few minutes after disconnecting.
If it is necessary to replace the compressor or carry out work on the refrigeration circuit, preliminary removal of the refrigerant using special equipment is required, since direct release of freon into the atmosphere is prohibited by environmental regulations. Access to the evaporator in No Frost systems often requires complete disassembly of the interior, which begins by removing the back wall inside the refrigerator or freezer compartment.
Dismantling the interior and removing shelvesTo access the evaporator and air circulation system in models with No Frost technology, it is necessary to completely empty the internal chamber from removable elements. The process begins by removing all glass shelves, plastic containers for vegetables and fruits, and the removable slides on which they are installed. The shelves should be removed carefully, lifting the front part slightly to disengage them from the rear stops, avoiding sudden movements.
☑️ Preparing the camera for disassembly
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☑️ Preparing the camera for disassembly
After freeing up the space, attention turns to dismantling the plastic panels covering the evaporator. In a freezer, this is usually the back wall, which can be secured with screws hidden under decorative plugs or with plastic latches. In the refrigerator compartment, access to the cold air supply channel is often blocked by a decorative panel at the top of the chamber, which also requires careful removal.
- ❄️ Remove the top decorative panel in the refrigerator compartment to access the air ducts.
- 🔩 Unscrew the screws securing the back wall of the freezer, if any.
- 🧊 Carefully bend the plastic clips using a plastic spatula so as not to break them.
- 💨 Gain access to the fan and defrost heater hidden behind the panel.
Particular attention should be paid to plastic guides and fasteners, which become brittle at low temperatures and easily break if handled carelessly. If the screws do not come out due to freezing, do not use excessive force; It’s better to wait until the ice thaws or use a hairdryer to gently warm up the mounting area. After removing the panel, access to evaporator, temperature sensors and heating element, which most often require replacement or diagnostics.
Removing the compressor and refrigeration circuit elementsDismantling a compressor is one of the most difficult operations, requiring not only mechanical intervention, but also work with the refrigeration circuit. The compressor in LG refrigerators is usually mounted on four shock-absorbing studs with rubber bushings, which dampen vibration when the engine is running. To remove the unit, you must first disconnect the electrical wires from the starting relay and terminal block, having previously photographed the connection diagram to avoid errors during assembly.
When replacing a compressor, always change the filter drier, as the old one may be saturated with moisture and contaminated, which will lead to rapid failure of the new unit.
When replacing a compressor, always change the filter drier, as the old one may be saturated with moisture and contaminated, which will lead to rapid failure of the new unit.
The mechanical fastening of the compressor is carried out with nuts that must be unscrewed while holding the unit itself so that it does not fall. After disconnecting the fasteners, the stage of working with copper suction and discharge pipes begins, which require professional tools for cutting and subsequent soldering. Simple unscrewing is impossible here, since the tubes are rolled or sealed, and cutting them means breaking the tightness of the system.
The table below shows the main parameters and characteristics of a typical compressor used in LG refrigerators, which is useful to know when selecting spare parts:
| Parameter | Meaning/Description | Note |
|---|---|---|
| Refrigerant type | R600a (isobutane) | Flammable, require caution |
| Power | 100-140 W | Depends on chamber volume |
| Oil type | POE (synthetic) | Hygroscopic, afraid of moisture |
| Fastening | 4 shock absorbers | Rubber bushings |
When working with the circuit, replacing the compressor involves evacuation of the system and charging with a strictly defined amount of refrigerant, which is only possible with the use of a pressure gauge station and scales.
Diagnostics and replacement of sensors and heating elementsIn LG refrigerators with No Frost system, temperature sensors and defrost heaters play a critical role, which ensure automatic defrosting of the evaporator. To replace these elements, you must gain access to the evaporator area by removing the protective plastic panel, as described in the previous sections. The sensors are usually mounted in special locations on the evaporator fins or in the air ducts and connected to the control board by long wires.
⚠️ Attention: Temperature sensors have different resistance at different temperatures. Installing an unsuitable sensor will lead to incorrect operation of the refrigerator, for example, to constant frost or, conversely, to a lack of cold.
⚠️ Attention: Temperature sensors have different resistance at different temperatures. Installing an unsuitable sensor will lead to incorrect operation of the refrigerator, for example, to constant frost or, conversely, to a lack of cold.
The defrost heating element (heating element) can be presented in the form of an open spiral, an aluminum profile or a glass tube, depending on the model and year of manufacture of the refrigerator. To replace it, it is often necessary to defrost ice build-up that could have formed due to a malfunction of the previous heating element or defrost timer. After carefully removing the ice, you can disconnect the terminals of the old heater and install the new one, making sure that the connections are in tight contact.
The serviceability of the sensors is checked using a multimeter in resistance measurement mode. When the ambient temperature changes (for example, when your hand gets hot), the resistance of a working sensor should change smoothly. If the device shows a break or the resistance does not change, the element must be replaced. It is also worth checking the integrity of the wires going from the sensors to the control board, as they often fray or become bent.
Assembling the refrigerator and checking the tightnessThe process of assembling an LG refrigerator is carried out in the reverse order of disassembly, but requires special attention to parts that may have been damaged or lost during the repair process. First of all, all electrical components are installed in place, the wires are neatly laid in the cable channels intended for them and secured with standard clamps. It is important to ensure that no wires touch moving parts of the fan or hot surfaces of the compressor.
After installing the internal components and panels, the rear technical cover is installed, and all screws are tightened with a force sufficient for reliable fixation, but without the risk of stripping the threads in the plastic seats. If the refrigeration circuit has been soldered, before complete assembly and switching on, it is necessary to check the system for leaks. This is done by applying nitrogen overpressure and monitoring the pressure gauge over a period of time.
- ✅ Check that all electrical connections are secure and that there are no loose wires.
- ✅ Make sure that all panels fall into place without gaps or creaks.
- ✅ Check the free rotation of the blower fan (if any).
- ✅ Remove any remaining moisture and clean the inner chamber before loading food.
The main principle of assembly is to return all elements to their original state in compliance with safety rules and system tightness.
The final stage is to plug in the refrigerator and monitor its operation for several hours. It is necessary to make sure that there is no extraneous noise or vibration, and also check the formation of cold in the chambers and the operation of the defrost system. Only after making sure that the unit is in full working order can you load food and operate the refrigerator as normal.
Is it possible to disassemble an LG refrigerator without damaging the seal?
Yes, disassembling the housing, removing panels and replacing electrical components (sensors, heating elements, fans) do not require breaking the factory seals on the compressor or capillary tube. The seals are damaged only when tampering with the sealed refrigeration circuit, for example, when replacing a compressor or repairing a freon leak. For routine maintenance and replacement of consumables, there is no need to open seals.
How to remove the back wall of an LG No Frost freezer?
To remove the back wall of the freezer, you must first remove all drawers and shelves. Then find and unscrew the screws that may be hidden under plastic plugs or located deep in the niches. After removing the fasteners, carefully pry the wall around the perimeter with a plastic spatula, releasing the plastic latches. Be careful, plastic is very fragile in the cold, so it’s better to let the camera warm up a little.
Is it necessary to drain the freon before disassembling the housing?
No, you do not need to drain the freon to disassemble the outer casing, doors, shelves, rear metal panel and internal plastic panels. Freon is located in a closed circuit of copper tubes. Draining (bleeding) the refrigerant is necessary only if you plan to cut or solder copper pipes, replace the compressor or filter drier.
Why doesn't the refrigerator freeze after assembly?
If, after disassembling and reassembling, the refrigerator stops freezing, the most likely reason is a violation of the tightness of the circuit (if work was done with the tubes) or an error in connecting the electrical components. Check if the compressor is connected, if the fan is running, and if there is a freon leak. It is also possible that the temperature settings have gone wrong or the sensor that was damaged during assembly has failed.