Independent repair of household appliances often begins with the need to get to the hidden components of the unit. Owners of refrigerators LG often face situations where they need to replace a burnt-out defrost heating element, clean the drainage hole, or eliminate extraneous noise from the fan. All these operations are impossible without proper dismantling of the internal space of the freezer compartment. Understanding the design of your unit is the first step to successfully restoring its functionality without calling a technician.
Modern models operating on the system No Frosthave a complex internal cabinet architecture hidden behind decorative plastic panels. Careless handling of the latches or the use of excessive force can result in broken fasteners, which are extremely difficult to repair. Before you pick up a screwdriver, you need to clearly understand the sequence of actions and have the right tool at hand. Mistakes at the disassembly stage can be costly, especially if fragile evaporator tubes or wiring are damaged.
In this article we will take a detailed look at the process of disassembling the freezer using the example of popular series of refrigerators LG. We will pay attention to the nuances of removing the back wall, disconnecting electrical connectors and safe handling of cooling system components. The main rule: before starting any work, you must completely disconnect the refrigerator from the power supply at least 2-3 hours before starting disassembly. This will not only protect yourself, but also reduce the pressure in the system, which minimizes the risk of damage to the tubes if accidentally touched.
Preparation of the workplace and the necessary tools
Quality preparation for repair determines half the success of the entire operation. You will need free space in front of the refrigerator to allow access from all sides. Good lighting is a must, as many fasteners and connectors are located in hard-to-reach, dark places behind the panels. You should not try to disassemble the unit in a hurry or in poor light, at the risk of losing small screws or not noticing the hidden latch.
For working with plastic panels and metal fastenings of refrigerators LG a standard DIY kit may not be enough. It is recommended to prepare the following arsenal of tools:
- 🛠️ Phillips screwdriver (PH2) - the main tool for unscrewing screws.
- 🔧 Slotted screwdriver with a thin tip - for carefully snapping off plastic clips.
- 🔌 Multimeter - to check the integrity of heating elements and sensors after removal.
- 🧊 Hair dryer (construction or household) - for defrosting ice if the chamber has not been completely defrosted.
- 📸 Smartphone - for photographing the wiring diagram before disconnecting them.
⚠️ Attention: Use only working tools with dielectric handles. The metal parts of screwdrivers should not touch live elements if you accidentally turn on the device.
Pay special attention to the cleanliness of your hands and tools. Dirt and oil trapped inside the mechanism or on the contacts can cause corrosion or poor contact in the future. If you plan to replace parts, it is best to remove new components from their packaging immediately before installation. Also prepare a container for water, since when removing some elements, condensate accumulated in the gutters of the defrost system may leak out.
☑️ Checking readiness for repair
Dismantling the internal contents and shelves
The first stage of disassembly is to completely empty the freezer compartment. This will not only provide access to fasteners, but will also prevent damage to food or ice spillage due to careless movements. Remove all drawers, shelves and containers. In models LG drawers are usually removed by moving towards you with a slight lifting of the front edge to overcome the stoppers of the guides.
After removing the containers, pay attention to the guide system. Sometimes plastic skids may have additional screws or clips in place that need to be released. In some modifications, the side walls have stiffening ribs to which the shelves cling. They also need to be carefully removed by pulling up or to the side, depending on the design. Act smoothly, plastic becomes brittle in the cold, and a sharp jerk can break it.
If an ice crust has formed inside the camera, preventing access to the screws, do not use a knife or sharp objects to chip it. This is a direct path to damage to the evaporator or breakdown of the internal lining. It is better to use a hairdryer, gently warming up the ice, or let the chamber completely thaw in natural conditions. Remember that evaporator is the heart of the cooling system, and its tightness is critical.
After cleaning the space, inspect the perimeter of the chamber. Look for hidden screws that may be under rubber stoppers, stickers, or trim on drawer doors. Manufacturers often hide fasteners exactly where they are least expected to be seen. A careful visual inspection at this stage will save you time and nerves in the future.
What to do if the drawer is jammed with ice?
If the bottom drawer cannot be removed due to ice, do not pull it by force. Turn on the fast freezing mode for 10-15 minutes so that the ice slightly melts from the heat of the engine, or use a hair dryer, directing a warm stream of air strictly at the area where the box and the body meet, avoiding overheating of the plastic.
Removing the back panel of the freezer
The back wall inside the freezer is the main barrier, hiding evaporator, fan and defrost system. It is behind this that most often lie the causes of malfunctions associated with ice freezing or lack of cooling. The process of removing this panel requires care, as it is secured with a combination of screws and plastic latches.
First, remove all visible screws around the perimeter of the panel. Their number varies from 4 to 8 pieces depending on the model LG. Sometimes one of the screws may be hidden under a decorative cap at the top or behind a logo. After removing all the fasteners, do not rush to pull the panel towards you. The plastic clips that secure it on the sides and bottom require careful handling.
Use a thin slotted screwdriver or a plastic spatula to unclip the panel. Insert the tool into the gap between the panel and the side wall of the chamber and, with a slight turning motion, unclip the latches. Move around the perimeter, starting from the bottom corners. A characteristic click will indicate that the latch is released. If the panel cannot be removed, check whether any screw remains unscrewed.
| Mounting type | Location | Tool | Features |
|---|---|---|---|
| Screws | Around the perimeter, corners | Phillips screwdriver | Can be hidden under plugs |
| Plastic clips | Side edges, bottom | Slotted screwdriver | Require careful snapping |
| Guides | Upper part | Hands | The panel often needs to be lifted |
| Screws in depth | Behind the decorative trims | Screwdriver with extension | Often found in older models |
When all the latches are released, the panel can be carefully pulled back. However, do not make sudden movements! Power wires for a fan, sensors or lamp can be connected to the panel. A sharp jerk is guaranteed to lead to broken wires or breakout of connectors from the control board. Estimate the length of the harnesses and act accordingly.
Access to the defrost system and fan
After removing the back panel, the “inner world” of the refrigerator will open to you LG. Here are the aluminum evaporator fins, a tubular heater (Heating element) and an air circulation fan. It is these components that most often require diagnosis or replacement. Visually assess the condition of the components: the presence of a thick layer of ice on the evaporator with a working compressor often indicates problems in the defrost circuit.
The fan is usually fixed in a special casing in the upper or side part of the niche. To remove it, you may need to unscrew 2-3 screws and disconnect the power connector. When checking the fan, pay attention to the ease of rotation of the blades. Jamming or noise when scrolling by hand indicates wear of the bearings, which requires replacement of the unit.
The defrosting system includes a heating element mounted in the lower part of the evaporator and temperature sensors. To access them, it is sometimes necessary to remove an additional plastic cover or condensate drain. In some models LG The heating element is inserted into special grooves between the evaporator fins and secured with clips.
When working in this area, be extremely careful with the aluminum evaporator tubes. They are very thin and easily damaged even with a little effort. Puncture of the evaporator will lead to a refrigerant leak and expensive repairs with refilling with freon, which is almost impossible to do at home. If you see swelling or traces of oil on the tubes, this may indicate an existing leak.
Nuances of working with electrical components
The electrical circuit of refrigerators LG is quite reliable, but requires careful attention during disassembly. All connections are made through connectors, which can be protected from moisture with special rubber seals or clamps. Before disconnecting any wire, make sure you understand how it is attached. Some connectors need to be pulled by the housing, others need to be clamped with a latch tab.
If you plan to check the components with a multimeter, do this until the wires are completely disconnected from the circuit, if possible, or carefully disconnect the connector, checking the contacts for oxidation. Oxidized contacts are a common cause of sensor malfunctions. To clean, use contact spray or regular alcohol on a cotton swab.
⚠️ Attention: Never check the resistance of the heating element or fan motor while they are connected to the control board. You can burn the electronic board with the test current of the multimeter. Always disconnect the connectors before taking measurements.
When reassembling, make sure that the wires are laid in the channels intended for them or secured with clips. Loose wires can get caught in fan blades or touch heating elements, causing the insulation to melt and cause a short circuit. Use zip ties or electrical tape to secure the harnesses.
Temperature sensors deserve special attention. They are small capsules, often filled with sealant. When installing a new backplate, be careful not to pinch the sensor or its wire. Damage to the insulation of the sensor wire can lead to incorrect temperature readings and incorrect operation of the refrigerator.
Assembly and initial startup
Assembly is carried out in the reverse order, but in compliance with several important rules. First of all, make sure that all electrical connectors click into place. A loose connector is a common reason why a refrigerator does not turn on after repair or does not work correctly. Check each connected node with a slight tug.
When installing the back panel, make sure that it fits into place tightly, without gaps. Gaps can lead to poor air circulation and the formation of condensation inside the cabinet, which will turn into ice. Tighten the screws without excessive force so as not to strip the threads in the plastic case.
After complete assembly and installation of the drawers, you can plug in the refrigerator. However, you should not immediately load it with products. Let the unit run idle for 2-4 hours. This time is necessary to reach operating temperature conditions and check the absence of extraneous noise. If during this time the refrigerator has gained cold and the compressor on-off cycles look normal, the repair can be considered completed successfully.
During operation, watch for ice formation. If the problem you were struggling with (for example, freezing of the “fur coat” on the back wall) recurred after a short time, it means that the cause was not completely eliminated. It is possible that not only the heating element needs to be replaced, but also the defrost sensor, or the problem lies in the control module.
Why does the refrigerator hum loudly after assembly?
The hum can be caused by vibration of an incorrectly secured rear panel or wires getting into the fan blades. Also check that the evaporator tubes are not touching the walls of the housing. If vibration is transmitted to the housing, it is enough to correct the position of the elements or install a damper.
Is it possible to wash the evaporator with water?
Washing an aluminum evaporator under a strong stream of water is not recommended, since water can flow into the thermal insulation of the housing or damage sensitive elements. To remove dust, use a soft brush or a vacuum cleaner with a brush attachment. If defrosting is necessary, allow the ice to melt naturally.
What to do if the plastic panel latch breaks?
If the latch breaks off, do not despair. The panel can be fixed using a small amount of sealant or glue for plastic (in an inconspicuous place), or you can drill a neat hole and use a tie or a small self-tapping screw with a wide head, having previously selected a colored plug.
How often do you need to defrost a No Frost refrigerator?
No Frost technology involves automatic defrosting, but once every It is recommended to completely defrost and wash the refrigerator for 6-12 months for hygiene and to prevent the formation of ice plugs in the drainage, which the system itself cannot remove.