The refrigerator is very cold in the main chamber: reasons and what to do

You opened the refrigerator, and instead of fresh vegetables you found ice on the walls, and milk turned into an ice block? The situation when the refrigerator compartment works like a freezeris familiar to many. This is not just an inconvenience - such a malfunction threatens food spoilage, increased energy consumption and even compressor breakdown. In 80% of cases, the problem can be fixed on your own without resorting to expensive repairs.

In this article we will look at why the refrigerator begins to "freeze" - from a banal incorrect position of the thermostat knob to serious breakdowns of electronic modules. You will learn how all possible reasons, due to which the refrigerator begins to “freeze” - from a banal incorrect position of the thermostat knob to serious breakdowns of electronic modules. You will learn how to diagnose the problem by indirect signs, what manipulations you can do with your own hands, and when exactly it’s time to call a specialist. We will pay special attention to models with system No Frost and inverter compressors - their “symptoms” often differ from classic refrigerators.

Spoiler: in half of the cases it is not the refrigerator itself that is to blame, but incorrect operation - for example, placing hot dishes on the top shelf or overloading the chamber with products that block ventilation. But first things first.

1. Incorrect temperature settings: when the problem is in your hands

The first thing you need to check is temperature regulator. In most models (Atlant, Indesit, Samsung), the optimal position of the handle or button is between 2 and 4 (where 1 is the warmest, and 7 is the coldest). If you accidentally turn the regulator to maximum or activate the mode Super Freeze, the refrigerator compartment will start working as a freezer.

How to check:

• 🔍 Find the temperature regulator (usually located inside the chamber on the right wall or on the top panel).
• ❄️ Make sure that the "Super Freeze" indicator is not lit (on models LG and Bosch it can turn on automatically).
• 📱 In refrigerators with electronic control (Samsung RB37J5240SA, Liebherr CPes 4066), check the settings through the display - sometimes the program gets lost after a power surge.

If the temperature is set correctly, but the problem remains, go to the next point. Exception: in refrigerators with one compressor (for example, Biryusa 145), the freezer and refrigerator compartment are cooled sequentially. If the freezer is overloaded with food, the refrigerator compartment may overcool - this is normal and goes away after 6-12 hours.

2. Thermostat (thermostat) failure: when the refrigerator “does not feel” the temperature

Thermostat - this is a sensor that tells the compressor when to turn on or off. If it fails, the compressor runs non-stop and the refrigerator compartment turns into a freezer. Signs of malfunction:

• ❄️ The compressor works constantly (there are no pauses between cycles).
• 🔊 A thick layer of ice forms on the walls of the chamber (even if there is no system No Frost).
• 💡 The light inside is on, but the cooling does not stop.

How to check the thermostat yourself:

1. Unplug the refrigerator.
2. Remove the protective cover (usually attached to 2-4 screws).
3. Find the thermostat - this is a small box with a tube attached to evaporator.
4. Carefully remove the terminals and check the contacts with a multimeter in continuity mode. At room temperature, the contacts should be closed.

Where is the thermostat in No Frost refrigerators?

In models with the No Frost system (for example, Samsung RL-34, LG GA-B489) the thermostat is usually located behind the rear panel of the refrigerator compartment or inside the electronic module. Its tube is attached not to the evaporator, but to the air duct.

If the thermostat is faulty, it must be replaced. For models Atlant i Stinol a universal one is suitable. data-i="102">or TAM-133 or TAM-145, for Samsung - original DA97-08007A or DA97-08007B. The cost of spare parts is from 800 to 2500 rubles.

⚠️ Attention: In refrigerators with electronic control (Liebherr, Beko), instead of a mechanical thermostat, a temperature sensor (thermistor) is used. Checking it requires special equipment. - without skills it is better not to take risks.

3. Malfunction of the temperature sensor: electronic refrigerators are at risk

In modern models (LG DoorCooling+, Samsung Twin Cooling Plus) it is not the thermostat that is responsible for the temperature, but thermistor the electronic one resistance sensor. If it fails, the control module receives incorrect data and causes the compressor to work without stopping.

Signs of sensor failure:

• 📉 The display shows an incorrect temperature (for example, +8°C, although in chamber -5°C).
• 🔄 The refrigerator spontaneously switches to defrost or super-freeze mode.
• 🚨 An error appears on the panel (codes E1, E2 for Indesit, FF for Samsung).

How to check sensor:

1. Disconnect the refrigerator from the network for 10 minutes (reset errors).
2. If the error remains, find the sensor (usually attached to the evaporator or air duct).
3. Test it with a multimeter: the resistance should change as the temperature changes (for example, 5 kOhm at +20°C and 27 kOhm at 0°C).

If the sensor is faulty, it must be replaced. data-i="137">suitable Samsung will do DA97-08007A, for LG — 6871W1A002B. A replacement at a service center will cost 1,500–3,000 rubles.

4. Problems with the door seal: when warm air deceives the system.

Worn out or dirty seal the refrigerator “thinks” that the temperature has increased and turns on the compressor at full power. As a result, the food freezes and ice forms on the walls.

How to check the seal:

• 🔍 Inspect the rubber band for cracks, tears or deformations.
• 📄 Check the tightness of the seal: place a sheet of paper between the door and the body. If it falls out or is easily pulled out, the seal is leaky.
• 🧼 Clean the rubber band from dirt and grease (use a soap solution or special products for seals).

If the seal is damaged, it needs to be replaced. For refrigerators Atlant an elastic band is suitable 53.200.001, for Indesit — C00288007. The average cost is 1200–2000 rubles. You can do the replacement yourself:

Unplug the refrigerator|Remove the old rubber band (by carefully prying it up with a screwdriver)|Clean the groove from glue and dirt|Apply silicone sealant to the new seal|Press the rubber band to the groove and secure with masking tape for 12 hours-->

⚠️ Attention: After replacing the seal, do not open the refrigerator door for 6–8 hours to allow the sealant to dry completely. Otherwise, the elastic band may come off and the problem will return.

5. Drainage system clogged: when water turns into ice

In refrigerators with drip defrosting system (Atlant, Stinol, Beko), condensation flows down the back wall into the drainage hole. If it becomes clogged, water accumulates at the bottom of the chamber and freezes, forming an ice crust. The refrigerator begins to “think” that the temperature is too high and turns on the compressor more often.

How to clean the drainage:

1. Turn off the refrigerator and take out all the food.
2. Find the drainage hole (usually at the bottom of the back walls).
3. Clean it with a cotton swab or a special brush (included with some models).
4. Rinse the system with warm water using a syringe.

If ice has already formed, defrost the refrigerator for 10-12 hours, then repeat the procedure. In difficult cases (for example, if the blockage is deep in the tube), it may be necessary to disassemble the rear panel.

6. Malfunction of the electronic module: when the “brain” of the refrigerator goes crazy

In electronically controlled refrigerators (Samsung, LG, Liebherr) it is responsible for cooling control module. If it fails, the compressor can work without stopping, ignoring sensor readings. Signs of module failure:

• 📛 Random characters or errors flash on the display (E5, ER DS).
• 🔄 The refrigerator spontaneously turns on/off modes.
• 💻 Buttons on the panel do not respond to pressing.

What to do:

1. Disconnect the refrigerator from the network for 15-20 minutes (sometimes resetting the settings helps).
2. If the problem persists, check the voltage in the network - surges can damage the module.
3. Contact the service center: Repairing the module will cost 3,000–6,000 rubles, replacing it will cost up to 10,000 rubles.

⚠️ Attention: Do not try to repair the electronic module yourself! This may lead to a short circuit or complete breakdown of the refrigerator. Service centers use special testers for diagnostics (for example, Refrigerator Board Tester).

7. Freon leak or clogged capillary tube: when you can’t do without a technician

If the refrigerator freezes too much, but at the same time the compressor works without stoppingand the temperature in the freezer is higher than normal, it is possible freon leakage or a blockage in capillary tubeThis is a serious malfunction. which requires professional repair.

Signs of a freon leak:

• ❄️ Refrigeration the chamber freezes, and the freezer hardly cools.
• 🔊 The compressor runs louder than usual and does not turn off.
• 💨 The condenser (grid on the back wall) remains cold.

What to do:

1. Disconnect the refrigerator and defrost it for 24 hours.
2. If the problem remains after turning it on, call a technician.
3. Repair includes finding leaks, soldering pipes, refilling freon and checking for leaks. The average cost is 4,000–8,000 rubles.

A clogged capillary tube is less common, but also requires specialist intervention. The technician cleans the system using special equipment (hydraulic press or pressurized nitrogen).

FAQ: Frequently asked questions about freezing the refrigerator compartment

Is it possible to use the refrigerator if it is very cold?

For a short time (1-2 days) it is possible, but this can lead to food spoilage and increased wear on the compressor. If the problem is in the settings or seal, fix it as follows. as quickly as possible. If the thermostat or electronic module is to blame, it is better to turn off the refrigerator before repair.

Why does the No Frost refrigerator freeze more than usual?

In systems No Frost freezing is often associated with a malfunction fan or defrost heater. the fan is clogged with ice or burnt out, cold air stops circulating, and the refrigerator compartment cools unevenly. Check whether the fan rotates when the door is open (in some models it stops). does it freeze like a freezer?

How much does it cost to repair if the refrigerator freezes like a freezer?

The cost depends on the reason:

• Replacement of the thermostat - 1500-3000 rubles.
• Replacement of the temperature sensor - 2000-3500 rubles.
• Repair of the electronic module - 3000–6000 rubles.
• Elimination of freon leaks - 4000–8000 rubles.

In service centers Samsung i LG there are fixed tariffs for diagnostics (from 1000 rub.), which are included in the cost of repairs.

How to prevent freezing in the refrigerator?

Preventive measures:

• 🧊 Do not put hot foods in the refrigerator (wait until they cool to room temperature).
• 📦 Do not overload the chamber with products - leave a gap of 2-3 cm for air circulation.
• 🧽 Once a month, wash the seal and check its tightness.
• ❄️ Defrost the refrigerator every 6 months (even if it has system No Frost).

Can a power surge cause freezing?

Yes. Sudden voltage changes can disrupt the settings of the electronic module or damage the sensors. If there are frequent power outages in your area, use voltage stabilizer (for example, Resanta ACH-1000/1-C or Stil IS1000). This will protect the refrigerator not only from freezing, but also from more serious damage.