Detection of an ice coat or icicles inside the fridge compartment of a household refrigerator Atlant is a signal that a malfunction has occurred in the operation of the unit. Unlike the freezer compartment, where frost formation is part of the normal operating cycle, in the positive zone the temperature should not drop below zero. The appearance of ice here indicates a violation of the thermal balance or the tightness of the circuit.
Owners often ignore the first signs of icing, believing that it is enough to simply defrost the equipment. However, if the root cause is not addressed, the problem will return within a short time, and constant humidity can cause food to spoil and electronics to fail. It is important to understand in a timely manner why the system cannot cope with moisture removal and temperature control.
In this article we will analyze in detail the main reasons that cause ice to freeze in Belarusian-made refrigerators. You will learn how to carry out diagnostics yourself, which components require attention first and when you can’t do without calling a technician.
Violation of the tightness of the door seal
One of the most common reasons why in the refrigerator compartment ice freezesis the loss of tightness of the door seal opening. The rubber seal (cuff) loses elasticity over time, becomes deformed or becomes dirty. Warm, moist air from the room penetrates into the chamber through the resulting cracks. Upon contact with cold walls, moisture condenses and instantly freezes, forming a characteristic ice crust.
The condition of the seal must be checked regularly. Look for cracks, scuffs, or areas where the rubber is coming away from the body. Even a microscopic gap can cause a permanent problem. If the seal is simply dirty, it should be thoroughly washed with warm water and soapy water and wiped dry.
⚠️ Attention: If the rubber cuff is severely deformed or has mechanical damage, simple washing will not help. In such cases, it is necessary to replace the seal with a new one, since it is almost impossible to restore its original shape.
There is a simple and effective way to check the tightness, which can be done at home. Take a regular sheet of paper or a banknote, clamp it with the refrigerator door around the perimeter and try to pull it out.
- 📄 If the paper is pulled out with noticeable effort and resistance, then the pressure is good.
- 📄 If the sheet slips out freely or falls out on its own, there is a problem in this place tightness.
- 📄 The check must be performed along the entire perimeter of the door, including the corners and the middle of the leaf.
Sometimes the cause of a loose fit is not the seal itself, but the misalignment of the door. This can happen if the refrigerator is not level or if the hinges have become loose over time. In this case, ice will accumulate mainly on the side where the gap has formed.
Malfunction of the thermostat and temperature sensors
The thermostat (thermostat) is the “brain” of the cooling system, which controls the operation of the compressor. It is he who gives the command to turn the motor on and off depending on the temperature inside the chamber. If this device fails or begins to work incorrectly, the compressor may not turn off in time, causing food and space. hypercooling products and space.
In models Atlant with electronic control, sensors (thermistors) are responsible for temperature control. If they break, the control board receives an incorrect signal that the chamber is warm, although in fact ice has already formed there. The system continues to freeze, ignoring the real state.
How to check the thermostat without instruments
If you have a mechanical thermostat, try carefully turning its knob to the “0” or “Off” position. The compressor should turn off. If the motor continues to hum, the contacts inside the thermostat itself may be stuck.
Diagnostics of the thermostat often requires disassembling the inside of the refrigerator. In mechanical models it is usually located inside the chamber or under the top cover. In electronic systems, sensors can be hidden behind plastic panels on the back wall.
- ❄️ Symptom of malfunction: the compressor runs almost non-stop, the humming does not stop.
- ❄️ Symptom of malfunction: the temperature in the chamber is significantly lower than the set one (products freeze).
- ❄️ Sign of malfunction: a thick layer of snow forms on the back wall even when the chamber is empty.
Replacing the thermostat is a procedure that can be done independently if you have basic skills, however, it is better to entrust electronic sensors to a specialist, since precise calibration is required.
Problems with the defrost system (No Frost and drip)
The design of refrigerators Atlant may imply various defrosting systems. Older and budget models use a drip system, where moisture flows down the back wall into a groove. More modern versions use technology No Frost (or Low Frost), where ice does not form at all due to air circulation. Problems with defrosting are typical for both systems, but manifest themselves in different ways.
In a drip system, ice may appear in the refrigerator compartment if the drainage hole is clogged. The water that should flow into the evaporator stagnates at the bottom of the chamber and freezes, forming an ice plug. Over time, this plug grows, capturing the lower shelves and vegetable drawers.
In systems with automatic defrosting (No Frost), a heating element (heating element), a defrost timer and a thermal fuse are responsible for removing moisture. If one of these elements burns out, the evaporator becomes coated with ice, which blocks the ventilation ducts. Cold air stops circulating, and moisture begins to settle in the form of frost on the products and chamber walls.
| System type | Malfunction symptom | Probable cause |
|---|---|---|
| Drip | A puddle of water at the bottom turning into ice | Clogged drainage hole |
| No Frost | Ice on the back wall, fan noise | Faulty defrost heating element or timer |
| General | Constant operation of the compressor | Freon leak or thermostat failure |
| General | Frost on the products at the back wall | Door seal failure |
Diagnostics of the No Frost system requires removing the rear panel inside the freezer or refrigerator compartment (depending on the design). A visual inspection of the evaporator will immediately show whether there is a “fur coat” that interferes with normal operation.
The influence of food storage on icing
Often the reason for the formation of ice lies not in a technical malfunction, but in improper operation of the device. Violation of food storage rules leads to excess moisture release, which the standard system simply does not have time to cope with. This is especially true for refrigerators Atlant with a large chamber volume.
Hot or warm food placed inside sharply increases humidity and temperature. The compressor begins to work hard, trying to cool the volume, and the released steam instantly condenses on the coldest surfaces - usually the back wall or ceiling of the chamber.
It is also important to consider the location of the products. If containers containing liquids or wet vegetables are placed close to the back wall, they may freeze to it. In addition, they block the outflow of warm air from the wall, which disrupts heat exchange.
- 🍲 Do not place hot pots inside, wait until they cool to room temperature.
- 🥬 Cover wet foods with a lid or cling film to reduce evaporation.
- 📦 Leave a gap of 2-3 cm between the products and the back wall for free air circulation.
Following these simple rules helps to significantly reduce the load on the cooling system and prevents the formation of unwanted ice.
Refrigerant leaks and compressor problems
More serious technical problems, such as a freon leak or compressor malfunction, can also lead to abnormal icing, although they are more likely to cause increased temperature. However, in the initial stage of a leak or when the compressor valves break, a “snow coat” effect may be observed in one specific zone.
If there is little refrigerant in the system, the pressure drops and the boiling point of freon shifts. As a result, the evaporator may cool unevenly: an ice build-up forms at the outlet of the filter drier, which gradually grows. This phenomenon is often accompanied by a change in the sound of the motor - it may hum louder or run jerkily.
⚠️ Attention: Self-repair of the refrigerant circulation system is prohibited without special equipment and a license. An attempt to refill the refrigerator “by eye” can completely damage the compressor.
It is difficult to diagnose a leak visually, since freon is colorless and odorless. An indirect sign may be swelling of the side walls of the case (where the condenser is sealed) or the appearance of oily spots (oily traces) in the places where the tubes are soldered at the back of the unit.
In such cases, it is necessary to call a technician who, using a leak detector, will find the place where the circuit is damaged, seal it and fill the system with the required amount of refrigerant according to the manufacturer's instructions.
Algorithm for self-diagnosis and elimination
Before calling a specialist, try to follow the path of self-diagnosis. This will help save time and money if the problem is of a domestic nature. Start by completely defrosting the refrigerator.
Unplug the appliance, remove all food and leave the doors open for at least 12-24 hours. Even if there is not much ice visually, it may be in the hidden cavities of the evaporator. After defrosting, thoroughly wipe all surfaces with a dry cloth.
☑️ Action plan if ice is detected
After turning on, carefully monitor the operation of the unit. If ice appears again within 24 hours, there is a technical problem. If within a week, the operating conditions are most likely violated.
Check the temperature settings. For a refrigerator, the optimal range is considered to be from +2 to +5 degrees. Setting minimum values (maximum cold) in a hot room is guaranteed to lead to icing.
If after all checks the problem persists and the compressor runs continuously, most likely You will need to replace the thermostat or repair the defrost system.
Prevention of ice formation
In order for your Atlant to serve for a long time and delight you with the absence of ice build-up, it is necessary to carry out regular preventive maintenance. It does not take much time, but significantly extends the life of the refrigerator components.
Once every six months, check the condition of the seal and clean the drainage hole. Even if you have a No Frost model, it is recommended to do complete defrosting at least once a year for hygienic cleaning and removal of odors.
Make sure the refrigerator is level. Use a building level to check for levelness. If the floor is uneven, tighten the adjustable feet at the front of the unit. This will ensure that the doors close correctly under the influence of gravity.
Why does ice form only on the back wall?
The back wall in refrigerators with a drip system is where the evaporator is located. Under normal conditions, frost forms there, which then melts and flows down. If the ice does not melt, but grows, it means that the defrosting cycle is broken or too much moisture is entering the chamber.
Is it possible to scrape off the ice with a knife?
It is absolutely not possible! Using sharp objects (knives, screwdrivers) to remove ice can puncture the evaporator tubes, which are located immediately behind the plastic. This will cause an instant leak of freon and expensive repairs.
Does the frequency of door opening affect icing?
Yes, it does directly. Each opening of the door lets in a portion of warm, moist air. If the door is slammed frequently or kept open for a long time (for example, when cooking), the system does not have time to dry the air, and the moisture settles as ice.
What to do if the food in the refrigerator compartment is frozen?
Urgently increase the temperature on the thermostat. Check that the food is not touching the back wall. If the mode is set normally, but the vegetables freeze, the thermostat or sensor is probably faulty and needs to be replaced.
Is it normal that after defrosting, ice appears again after 2 days?
No, this is not normal. After proper defrosting and restoration of operation, ice should not appear in the refrigerator compartment in principle. Repeated appearance indicates that the cause (leak, leaky seal, sensor failure) has not been eliminated.