Discovering a puddle on the floor under the refrigerator or inside the chambers is always stressful, which can lead to spoilage of food and damage to the floor covering. Equipment owners LG often encounter this problem, and in most cases the reason lies not in a complex breakdown of the compressor, but in a simple blockage or violation of operating rules. Understanding the principles of operation of the moisture removal system will help you quickly localize the problem without calling a technician.
Modern models equipped with technology Total No Frosttheoretically should not form ice, however, condensation may appear due to malfunctions of sensors or fans. In models with a drip system (“crying” evaporator), water flows down the back wall, and a violation of this process is immediately obvious. It is important not to panic, but to consistently check each unit responsible for the circulation and removal of moisture.
In this article we will analyze in detail the mechanical and electrical causes of leaks, which are typical specifically for South Korean units. You will learn how to safely clean the drain, check the integrity of the seals and diagnose a malfunction of the evaporator heating element. A competent approach to diagnostics will save time and money by returning the equipment to operating mode.
Mechanical damage and errors during operation
The most common reason for the appearance of water inside the chamber or on the floor is a physical impact on the structure or a violation of the tightness of the circuit. Often, when trying to place large products, users accidentally move shelves or touch internal elements, which leads to displacement of condensation trays. In models LG DoorCooling+ the air duct system is located in the upper part, and careless handling of the shelves can disrupt the outflow of moisture.
The second critical factor is the condition sealing rubber on the doors. If the elastic band has lost its elasticity, become dirty or deformed, warm air from the room enters the chamber. This leads to increased formation of condensation, which the drainage system simply cannot cope with. Water begins to accumulate at the bottom of the refrigerator compartment and overflows over the edge of the gutter, flowing out.
⚠️ Attention: Never use sharp objects (knife, screwdriver) to defrost ice on the walls or seal. Mechanical damage to the refrigerant circuit or the seal itself will lead to expensive repairs that cannot be carried out on your own.
It is also worth checking whether the refrigerator is level. If the unit is tilted forward, the door will not seal tightly due to gravity. Adjusting the legs is a simple procedure that should be performed first when a sealing problem occurs. Tilt back ensures natural closing of the door and proper flow of water into the drainage hole.
Clogged drainage system: the main cause of leaks
In the vast majority of cases, when water appears inside the refrigeration chamber or flows out under the unit, the clogged one is to blame. drainage channel. Food crumbs, mold, slime or pieces of packaging materials may block the narrow opening in the back wall. The water generated during defrosting cannot go into a special tray above the compressor and begins to overflow, flowing onto shelves and products.
To clean the channel in refrigerators LG it is not necessary to disassemble the entire unit. It is enough to use a soft wire, a cotton swab or a special brush. Carefully insert the tool into the hole on the back wall and make forward movements, trying to push the clog deeper or catch it. After mechanical cleaning, it is recommended to rinse the canal with warm water from a syringe or syringe without a needle.
☑️ Algorithm for cleaning the drainage
If water flows under the refrigerator, but it is dry inside, the problem may be in the drain tray located above the compressor at the back. It could have cracked over time or shifted during transportation. In this case, water drips past the tray directly onto the floor. To check this, you need to move the refrigerator and remove the back panel (if there is one) or simply look into the lower part of the back wall.
Faults in the No Frost system and the evaporator area
In refrigerators with the system No Frost water may appear inside the refrigerator or freezer due to freezing of the evaporator. Normally, the fan circulates cold air, and the heating element periodically defrosts the evaporator. If one of the elements of this chain fails, ice builds up, blocks the air channels, and during the next attempt to defrost, the water does not have time to evaporate or drain, overflowing the tray inside the housing.
A frequent cause is a malfunction of Defrost heating element or the defrost sensor. If the heating element is burnt out, the ice does not melt, the channels become clogged with sludge, and during rare defrosting cycles (or when the door is opened), this ice melts and flows inside. In models with a linear compressor, diagnostics often indicate a failure in defrost cycle control. problems LG With a linear compressor, diagnostics often indicate a failure in defrost cycle control.
| System component | Problem Symptom | Probability of problem |
|---|---|---|
| Evaporator heating element | Ice does not melt, water does not go into the drain | High |
| Defrost sensor | Incorrect defrost cycle, ice freezing | Average |
| Blowing fan | Noise, lack of cold, local freezing | Average |
| Drainage tray | Cracks, water dripping to the compressor | Low |
Diagnostics often require partial disassembly of the freezer to get to the hidden evaporator. If you see a thick layer of ice or snow where there shouldn't be, this is a sure sign of a problem with the defrost cycle. In such cases, water can flow not only inside, but also through the cracks of the housing outside.
Why does ice block the drain?
An ice plug in the evaporator drainage channel is a common occurrence. When the heating element works weakly or rarely, ice has time to build up around the drainage inlet. Water from the melting of the upper layers of ice simply cannot break through this plug and overflows over the edges of the tray, ending up on the floor of the refrigerator compartment.
Problems with food containers and shelves
Sometimes the reason is trivial and not related to technical components. Water may leak due to overfilled fruit and vegetable containers. If you have just defrosted food or placed a warm pan in the chamber, the amount of condensation increases sharply. The drainage may not have time to cope with the volume of moisture, especially if the hole has a slight coating of fat or mucus.
Pay attention to the drawers at the bottom of the refrigerator compartment. In some models LG the design features are such that if the box is installed incorrectly or is loaded too tightly with products, condensation from the back wall may not flow into the gutter, but flow around the box from the side, creating the illusion of a leak from below. Check that the back edge of the drawer is not raised too high.
It is also worth mentioning about storing liquid foods in open containers. Tall water or juice bottles placed close to the back wall can prevent condensation from flowing down the grooved surface. Water begins to accumulate in the gap between the wall and the bottle, and then pours out when the door is opened or the compressor vibrates.
Faults of electronics and sensors
Modern refrigerators LG stuffed with electronics that control all processes. If the control board is “glitchy” or receives incorrect data from sensors, the operating cycle may be disrupted. For example, if the temperature sensor “thinks” that the chamber is warmer than it actually is, it may not turn on the compressor, but at the same time mistakenly start or, conversely, block the defrost cycle.
Particular attention should be paid to the evaporator temperature sensor. Its readings directly affect the operation of the heating element. If the sensor shows incorrect values (for example, due to oxidation of contacts or aging), the system may not enter defrost mode at all. As a result, the evaporator becomes overgrown with ice, which eventually begins to melt and leak into the chamber during rare cycles or when the lights are turned off.
Diagnostics of electronics requires special knowledge and equipment (multimeter). However, you can visually assess the condition of the wires going to the sensors. Often, at the point where they bend or exit the housing, the wires break, which leads to a break in the circuit. Restoring contact can solve the problem without replacing expensive components.
⚠️ Attention: Before any manipulations with electrical components (sensors, wires, board), be sure to disconnect the refrigerator from the power supply! Even a short-term short circuit can damage the main control module, the cost of which is up to 50% of the price of a new refrigerator.
When you need to call a specialist
Despite the possibility of solving many problems on your own, there are situations when professional intervention is inevitable. If after cleaning the drainage, checking the seal and defrosting within 24 hours the problem does not disappear, then the reason lies deeper. Most likely, we are talking about replacing the heating element, sensor, or repairing the control board.
Also, the help of a specialist is needed if you find mechanical damage to internal plastic elements that cannot be repaired with glue, or if there is a suspicion of a freon leak (although water usually does not flow during a leak, but the accompanying symptoms can be confusing). The technician will be able to accurately diagnose the unit and carry out repairs with a guarantee.
Preventing the appearance of water in the refrigerator
If the problem has not returned, it is important to follow simple rules operation. Regularly, at least once every six months, check the cleanliness of the drainage hole. Rinse it with warm water with the addition of a small amount of soda to prevent the growth of bacteria and the formation of mold, which often becomes the cause of the initial blockage.
Watch the temperature. Do not place hot food in the chamber or store food in unsealed containers if it releases moisture. Proper packaging of products not only preserves their freshness, but also facilitates the operation of your ventilation and drainage system. Regularly washing the rubber seals with warm soapy water will maintain their elasticity and prevent the sticking of crumbs that prevent the door from closing tightly. Simple care prolongs the life of the equipment and eliminates unexpected leaks. LG.
Regularly washing the rubber seals with warm, soapy water will maintain their elasticity and prevent crumbs from sticking and preventing the door from closing tightly. Simple maintenance prolongs the life of the equipment and eliminates unexpected leaks.
How often should No Frost be defrosted?
Although the No Frost system assumes the absence of ice, manufacturers recommend completely defrosting and washing the refrigerator at least once a year. This is necessary for hygiene, removing odors and preventing hidden blockages in the air circulation system.
Frequently asked questions (FAQ)
Why does water flow when the door is opened?
This may indicate that the condensate tray is overfilled or misaligned. It is also possible that the air flow when opening the door “blows away” droplets that have accumulated on the ceiling or walls due to improper air circulation or freezing of the evaporator.
Can hot water be used to clean the drain?
You can only use warm water (body temperature or slightly higher). Boiling water can melt the plastic elements of the drainage tube or damage the rubber seals inside the channel, which will lead to a new, more serious problem.
What to do if the water has an unpleasant odor?
An unpleasant odor indicates stagnation of water and the growth of bacteria or mold in the drainage system. It is necessary to thoroughly rinse the channel with a solution of soda or a weak solution of vinegar, and also wash the chamber itself with a disinfectant.
Does the installation level of the refrigerator affect leaks?
Yes, directly. If the refrigerator is tilted forward, the door will not fit tightly and condensation may leak out. If the slope is too great in the other direction, oil from the compressor may enter the circuit, and water may not drain correctly into the tray.