Why the lower chamber of the refrigerator does not freeze - a complete analysis of the reasons and solutions

Did you open the freezer, and instead of the expected cold, you found puddles and melted food? The lower chamber of the refrigerator has stopped freezing, but the top one is working fine? This problem is familiar to many owners of two-chamber models - from budget Indesit and Beko to premium Samsung and Liebherr. In 80% of cases, the malfunction can be fixed on your own, without resorting to an expensive service center.

In this article we will look at why the lower freezer stops cooling - from banal icing of the fan to compressor failure. You will learn how to carry out all possible reasons, due to which the bottom freezer stops cooling - from banal icing of the fan to compressor breakdown. You will learn how to conduct diagnosis in 10 minuteswhat parts you can fix yourself, and when it’s time to call a repairman. We will pay special attention to models with a system No Frost and drip defrosting, since they have different “weak points”.

⚠️ Important: if the refrigerator is connected to the network, but the lower chamber does not freeze already more than 12 hours, the products inside may become hazardous to health. Transfer them to a cooler bag or put ice in a basin while you deal with the breakdown.

1. Let's check the obvious: 4 simple reasons

Before disassembling the refrigerator, eliminate the “human factor”. These problems do not require repair, but occur in 30% of calls to service centers.

• 🔌 No power - check if the light inside the refrigerator is on. Perhaps the plug has come out of the socket or the circuit breaker on the panel has tripped. For models with a display (Samsung RB30J3000, LG GB-B459SLQZ), when the power is turned off, an error appears on the screen.
• ❄️ Vacation or Eco mode —some refrigerators (Bosch KGE39XW2AR, Electrolux ENN2853AOW) have a function to turn off the freezer to save energy. Check the settings: hold down the button Vacation or Eco for 3 seconds.
• ⚙️ Temperature settings are lost - someone may have accidentally changed the mode. Norm for the freezer: -18°C (for No Frost) or -24°C (for drip models). How to check: press Freezer Temp and set the value again.
• 🚪 The door does not close tightly - even a small gap of 2 mm leads to freezing of the seal and loss of cold. Carry out a test with a sheet of paper: if it easily pulls out when the door is closed, the seal is worn out.

If all of the above is in order, but the freezer still does not work, move on to diagnosing technical faults.

2. The fan is frozen: problem No. 1 for No Frost

In refrigerators with a system No Frost (Samsung RB37J5000, LG GA-B489YDQL, Atlant XM 4625-101) the fan is responsible for circulating cold air. If it freezes, the cold stops flowing into the lower chamber, although the compressor is working. Signs:

• 🔇 The refrigerator is humming, but it’s warm in the freezer.
• ❄️ There is a thick layer of ice on the back wall of the freezer.
• 🌀 The fan does not spin (you can hear attempts to start with clicks).

How to fix:

1. Unplug the refrigerator for 12-24 hours so that the ice has melted.
2. Remove the water from the pan (it is located at the back, under the compressor).
3. Check whether the fan rotates freely: if not, lubricate its shaft with silicone grease.
4. Turn on the refrigerator and listen: there should be a uniform air noise.

⚠️ Attention: If the ice grows again after 1-2 weeks, the problem is defrost heater or defrost timer. These parts require replacement.

3. Freon leak: how to recognize and what to do

Freon is a refrigerant that circulates through the refrigerator tubes and provides cooling. If a microcrack appears somewhere, the gas evaporates and the freezer stops working. Signs of a leak:

• 🔧 The compressor works without stopping, but does not freeze.
• 🧊 The condenser (grid at the back) is cold, although it should heat up.
• 🛠️ Oil stains are visible on the tubes or in the chamber (freon comes out along with the oil).

What to do:

It is impossible to fix the leak yourself - you need a special tool for soldering the tubes and refilling the freon. However, you can check the assumption:

1. Disconnect the refrigerator and move it away from the wall.
2. Inspect the tubes for corrosion or damage (especially in solder areas).
3. Try to touch the condenser: if it is at room temperature, freon is definitely no.

⚠️ Attention: If the leak occurs in the foamed part of the case (for example, in the wall of the freezer), repairs will be more expensive due to the need to open and re-foam. In such cases, it is sometimes cheaper to buy a new refrigerator.

4. Compressor failure: when the freezer “died” completely

The compressor is the “heart” of the refrigerator. If it breaks, the lower chamber not only does not freeze, but completely loses its cold.. Signs:

• 🔕 The refrigerator does not turn on or makes loud knocks.
• 🔥 The compressor housing is hot (more than 80°C).
• 📉 There is no voltage at the terminals (check with a multimeter).

How to check the compressor:

1. Turn off the refrigerator and remove the back cover (in some models - the bottom panel).
2. Find the compressor - this is a black “barrel” with tubes.
3. Test the windings with a multimeter:
   • The resistance between the contacts C-S and C-R should be 20–50 Ohms.
   • Between S-R — 10–30 Ohm.
   • If the readings are “0” or “∞” - an open or short circuit.

⚠️ Attention: if the compressor hums but does not start, the problem may be in starting relay (costs 800–1,500 rubles). You can replace it yourself by first photographing the connection of the wires.

What to do if the compressor burns out?

If the compressor windings are shorted or broken, it will have to be replaced. The cost of a new compressor is from 5,000 to 12,000 rubles, plus the work of a master (2,000–4,000 rubles). For refrigerators older than 10 years, repairs are usually not cost-effective.

5. Malfunction of the thermostat or temperature sensor

The thermostat (or thermostat) controls the temperature in the freezer. If it fails, the compressor either does not turn on or works without stopping. How to recognize:

• 🌡️ The freezer is too cold (the food is covered with a “snow coat”) or, conversely, warm.
• 🔄 The compressor turns on for 5-10 seconds and immediately turns off.
• 📊 The display shows an error (for example, E1 or F2 y Samsung, dH y LG).

Thermostat diagnostics:

1. Find the thermostat - it is usually located inside the freezer, under the plastic cover.
2. Remove the terminals and ring the contacts with a multimeter in the “diagnosis” mode.
3. Turn the adjustment knob: when you change the position, a click should be heard (this triggers the contact).

If the thermostat does not click or does not ring, it needs to be replaced. The cost of a new part is from 500 to 2. 000 ₽ depending on the model. For example, for Atlant MHM 1705-80 thermostat K-59 it will cost 600 ₽, and for Samsung RL-34 EBSW it will cost 1,800 ₽.

6. Clogged capillary tube: why the freezer “cries”

Capillary the tube is a thin copper channel through which freon enters the evaporator. If it becomes clogged (for example, due to moisture or oil), the refrigerant does not circulateand the freezer stops freezing. Symptoms:

• 💧 Frost or water appears on the back wall of the freezer.
• 🔄 The compressor works without interruption, but no cold comes in.
• 🧊 The condenser (grid at the back) is cold, although it should be warm.

How eliminate:

Cleaning the capillary tube requires special equipment (hydraulic press, nitrogen). It is impossible to do this on your own - you need the help of a specialist. However, you can prevent cloggingif:

• Once a year you clean the condenser from dust.
• Do not store open liquids in the freezer (they evaporate and condense in the system).
• Make sure the door is sealed (humid air accelerates the formation of ice jams).

⚠️ Attention: If the technician suggests “blowing out” the tube without replacing the filter-drier, refuse. This is a temporary solution - the blockage will return in 1-2 months.

7. Problems with electronics: boards and sensors

Modern refrigerators (Samsung Family Hub, LG InstaView, Bosch VitaFresh) are equipped with electronic control boards. If they fail, the freezer may. stop working, although the upper chamber is functioning normally. Symptoms:

• 📱 The display shows an error (for example, Er IF u Indesit - fan malfunction, E4 y Beko —problem with the sensor).
• 🔄 The refrigerator turns on/off spontaneously.
• 🎛️ The buttons on the panel do not respond to pressing.

What do:

1. Disconnect the refrigerator from the network for 5 minutes - sometimes this clears the errors.
2. Check the voltage in the outlet (should be 220–230 V).
3. If the error remains, find its explanation in the instructions (for example, Er FF at Samsung - freezer fan malfunction).

It is not recommended to repair the boards yourself - this requires knowledge in radio electronics. The cost of repairing the board: from 2,500 to 8,000 rubles. In some cases, it is cheaper to buy a new one (for example, a board for LG GA-B489 costs ~5,000 ₽).

Frequently asked questions about a non-working freezer

The freezer is not working. it’s freezing, but the light inside is on. What’s the problem?

Most likely it’s faulty thermostat or compressor. The light is on because the light is connected separately from the cooling system. If not, the problem is in the start relay. hums, but does not freeze - possible freon leak or capillary tube clogged.

Refrigerator No Frost: there is ice in the freezer, but it’s warm in the refrigerator. What to do?

This is a typical problem for systems No Frost — fan is iced up. Turn off the refrigerator for 12-24 hours so that the ice melts. After turning on, listen: if the fan does not. is spinning, check heater defrost (heater) and defrost timer. In 70% of cases, replacement of the heater is required (cost - 1,200–2,500 rubles).

Is it possible to use the refrigerator if the freezer is not working?

Technically, yes, but not recommendedIf the freezer does not freeze due to a freon leak or a compressor failure, the refrigerator compartment can also stop cooling at any time. In addition, constant operation of the compressor “idling” leads to its overheating and final breakdown. It is better to eliminate the cause immediately.

How much does it cost to repair a freezer at a service center?

The cost depends on malfunctions:

• Replacement of the thermostat - 1,500-3,000 ₽.
• Repair of freon leak - 3,500-8,000 ₽.
• Replacement of the compressor - 6,000-12,000 ₽.
• Cleaning the capillary tube - 4,000–7,000 ₽.
• Repair of the control board - 2,500–8,000 ₽.

⚠️ Prices are valid for Moscow and St. Petersburg. In the regions, repairs can cost 20–30% less.

How to prevent freezer damage?

Preventive measures:

• Once a year, clean the condenser (grid at the back) from dust.
• Do not store open liquids in the freezer (they evaporate and clog the system).
• Check the door seal - it should fit snugly.
• Do not overload the freezer with food (this interferes with air circulation).
• Defrost the refrigerator No Frost once every 6 months (despite the automatic system).