Why the freezer does not freeze in the refrigerator: reasons and solutions

Have you opened the freezer, and instead of the usual cold - room temperature, melted food and puddles on the shelves? The problem when the freezer does not freezebut the refrigerator is working is more common than it seems. In 60% of cases, it is not breakdowns that are to blame, but operating errors or minor malfunctions that can be eliminated without calling a technician.

In this article we will look at all possible reasons - from trivial fan icing to serious compressor breakdowns. You will learn how to diagnose the problem yourself, when to call a specialist, and when defrosting or cleaning is enough. We have also collected unique data on statistics of freezer failures in refrigerators of different brands (based on service centers for 2023–2026 gg.)which will help assess the risks.

Important: if the freezer does not turn on at all (no light, no noise heard), the problem may be in the electrical circuit - this is a separate case that requires checking the socket, plug and power cord. Here we will talk specifically about situations when the camera is turned on, but does not cool.

1. The fan or drainage hole is clogged

The most common reason why freezer stopped freezingbut the refrigerator works is fan icing or the drainage channel is clogged. In models with a No Frost system (for example, Samsung RB37J5240SA, LG GA-B489YDQZ), the fan is responsible for circulating cold air. If it is blocked by ice or debris, the cold stops flowing into the freezer, and the compressor idles.

How to check:

• 🔍 Open the freezer and listen: if the fan does not make noise (normally a slight hum is heard), it means it is blocked.
• ❄️ Shine a flashlight on the back wall: if there is a thick layer of ice, this confirms the problem.
• 💧 Check the drainage hole (usually at the bottom of the chamber) - if it is clogged with crumbs or ice, the condensation does not leave, and the system fails.

What to do:

1. Disconnect the refrigerator from the mains and defrost it at least 12 hours (ideally a day).
2. After defrosting, clean the drainage hole with a plastic tube or special brush (included with some models).
3. Check the operation of the fan: if after defrosting it does not spin, the motor may have burned out - replacement will be required.

Unplug from the outlet|Remove all products|Place containers to collect water|Leave the door open for 12+ hours|Wipe the walls with a dry cloth after defrosting|Check the drainage hole-->

⚠️ Attention: Never use sharp objects (knives, forks) to remove ice from the fan - this may damage the blades or motor windings. To speed up defrosting, it is permissible to place a container with warm water (but not boiling water!) in the chamber.

2. Failure of the thermostat or temperature sensor

If the freezer poor frost or turns on for a short time, the problem may lie in thermostat (in mechanical models) or temperature sensor (in electronic ones). These elements are responsible for signaling the compressor about the need for cooling. If they malfunction, the compressor either does not turn on or works chaotically.

Signs of failure:

• 📉 Temperature in the freezer jumps from -5°C to -20°C for no apparent reason.
• 🔄 The compressor turns on for 1-2 minutes and immediately turns off.
• 🚨 An error appears on the display (for example, E1 or F2 y Bosch, dH y Indesit).

Diagnostics:

1. For a mechanical thermostat: find the temperature regulator (usually inside the refrigerator compartment) and turn it from the minimum to the maximum value. If the compressor does not respond, the thermostat is faulty.
2. For electronic sensor: a multimeter is required. Disconnect the sensor (usually located on the evaporator) and measure the resistance. At room temperature it should be in the range 4–7 kOhm (for exact values, see the documentation for the model).

Solution: Replacing the thermostat or sensor In mechanical models. (for example, Biryusa 145) a thermostat costs 500–1200 rubles, an electronic sensor will cost 1500–3000 rubles. Self-replacement is possible if you know how to work with a soldering iron and a multimeter.

3. Freon leakage or blockage of the capillary tube

If the freezer is does not freeze at alland the compressor is running non-stop and gets very hot, most likely there is a freon or blockage in refrigerant leak (freon) or blockage in capillary system. Freon circulates in a closed circuit, and if there is a shortage of it, cooling stops.

Causes of leakage:

• 🔧 Mechanical damage to the circuit (for example, when moving the refrigerator).
• 🕳️ Corrosion of tubes (relevant for older models over 10 years old).
• 🔥 Overheating of the compressor due to faulty fan.

How to diagnose:

• The compressor runs constantly, but the freezer does not cool.
• The condenser (grid on the back wall) remains cold (normally it should heat up).
• On the tubes or in place soldering, oil stains are visible (freon comes out along with the oil).

Solution: Freon leak cannot be eliminated independently special equipment for evacuation and refilling is required. Average cost of repair:

• Diagnostics of the leak: 1000–1500 rubles.
• Refilling freon: 2500–4000 rubles (depending on the type of refrigerant).
• Replacement of the capillary tube: 3000–6000 rubles.

⚠️ Attention: If the leak is due to corrosion, the technician may recommend a complete replacement of the circuit or the purchase of a new refrigerator - repairs will cost 50–70% of the cost of new equipment.

Atlant|Samsung|LG|Indesit|Bosch|Other-->

4. Compressor malfunction

The compressor is the “heart” of the refrigerator. If it fails, the freezer stops freezing, and the temperature in the refrigerator compartment rises to room temperature. The failure of the compressor can be partial (for example, wear of the pistons) or complete (broken winding, jamming of the motor).

Signs of a malfunction:

• 🔇 The compressor does not turn on at all (no vibration and noise).
• 🔥 The compressor housing is excessively hot (more than 80°C).
• 🔌 The refrigerator knocks out the automatic switch in the panel when turned on.
• ⚡ On the display error related to the motor (for example E5 y Samsung, F7 y LG).

Diagnostics:

1. Check whether power is supplied to the compressor: disconnect the terminals and measure the voltage with a multimeter (there should be ~220V).
2. Ring the compressor windings:
   • Resistance between C (common) and S (starting): 20–40 Ohm.
   • Resistance between C and R (working): 10–20 Ohm.
   • Resistance between S and R: the sum of the two previous values.

If there is no resistance or is zero, the winding is broken. If the resistance between the housing and the terminals is not infinite, there is a breakdown in the housing.

Solution: Replacing the compressor will cost 5,000–12,000 rubles (depending on the model). In refrigerators older than 10 years, it is more advisable to consider purchasing new equipment - repairs may be unprofitable.

How to check a compressor without a multimeter?

If there is no multimeter, you can roughly assess the performance of the compressor using indirect signs:

1. When plugged into the network, it should “twitch” slightly (this triggers the starting relay).

2. After 1–2 seconds, a uniform hum should appear.

3. The compressor housing should heat up gradually, and not remain cold or overheat in a few minutes.

If at least one of the points is not met, the compressor is faulty.

5. Breakdown of the control board

In modern electronically controlled refrigerators (for example, Samsung RL38T6000SA, LG GB-B459SLQZ) the freezer is responsible for the operation of control board. If it malfunctions, the following symptoms may be observed:

• 📛 Errors flash on the display (E1, ER FS, PF).
• 🔄 The freezer turns on and off without logic.
• 🔌 The refrigerator does not respond to pressing buttons.
• 💡 The backlight works, but the compressor does not start.

Causes of board failure:

• ⚡ Power surges in the network.
• 💦 Moisture ingress (for example, when defrosting).
• 🕰️ Natural wear of capacitors (after 7–10 years of operation).

Diagnostics:

Visually inspect the board (usually located on the back wall of the refrigerator or under the top cover). Signs of malfunction:

• Swollen or leaking capacitors.
• Darkened or burnt tracks.
• Oxidized connector contacts.

Solution:

• If the capacitors are to blame, you can replace them yourself (cost 50–300 rubles per piece).
• If the board is seriously damaged, it requires replacement (3000–8000 rubles) or repairs at a service center (1500–4000 rubles).

⚠️ Attention: Before replacing the board, be sure to check the voltage in the network - if it is beyond limits 200–240V, even a new board will burn out quickly. Use a voltage stabilizer (for example, Resanta ASN-1000 N/1-C).

6. Problems with the door or seal

If the freezer compartment does not freeze well, but the compressor is operating normally, check door sealing. Even a small gap allows warm air to enter, causing the temperature in the chamber to rise and the compressor to work overload.

Signs of leakage:

• 🧊 Ice on the back wall of the freezer (due to condensation).
• 💨 Cold air comes out of the gap when the door is closed.
• 📦 Food near the door thaws faster.

How to check the seal:

1. Take a sheet of paper and press it between the door and the body.
2. If the sheet easily pulled out - the seal is worn out.
3. Check around the entire perimeter, especially in the corners (the rubber wears out faster there).

Solution:

• If the seal is dirty, wash it with warm water and soap and lubricate it with silicone lubricant.
• If the rubber is deformed, replace the seal (cost 1000–3000 rubles).
• If the door is sagging, adjust the hinges (in most models it is enough to tighten the bolts).

7. Incorrect settings or chamber overload

Sometimes the freezer does not freeze due to simple operating errors. Here is what is worth checking first:

• 🌡️ Temperature mode: Make sure that the freezer regulator is in position. on -18°C or lower. Some models (for example Liebherr CNef 4315) have separate settings for the refrigerator and freezer compartments.
• ❄️ Vacation mode: If activated, the freezer can turn off to save energy. (usually Vacation Mode or Holiday).
• 📦 Overload with products: If the chamber is filled to capacity, air circulation is disrupted. Leave a gap of 2-3 cm between the products and the walls.
• 🔌 Energy saving mode: In some models (for example, Bosch KGN39XL45R), when activated Eco Mode the freezer works less intensively.

Also check:

• 🔄 Frequency of door opening: If the freezer open every 10–15 minutes, the compressor does not have time to restore the temperature.
• ☀️ External temperature: If the refrigerator is located next to the stove or in the sun, the compressor may not be able to cope with the load.

Statistics of freezer breakdowns by brand

Analysis of service center data for 2023–2026 shows that most often the freezer stops freezing due to the following reasons (as a percentage of the total number of calls):

Interesting observations:

• In refrigerators Samsung and LG Electronics (boards, sensors) most often suffer due to sensitivity to power surges.
• Models Atlant i Indesit are more susceptible to freon leaks due to thin capillary tubes.
• Q Bosch/Siemens compressors often fail - this is due to the high load in models with a freshness zone.

FAQ: Frequently asked questions about freezers

The freezer does not freeze, but the refrigerator works - what to do first?

Start by defrosting for 12-24 hours. In 40% of cases, the problem is solved by removing ice from the fan or cleaning the drainage hole. If after defrosting the freezer does not work, check the door seal and temperature settings.

How to understand that the compressor is broken and not the thermostat?

If the compressor does not turn on at all (no noise or vibration), the problem is in it or in the start relay. If the compressor works, but the freezer does not cool, the thermostat, sensor or freon leak is to blame. For accurate diagnosis, you need a multimeter.

How much does it cost to repair a freezer?

Prices depend on. breakdowns:

• Replacement of seal: 1000–3000 rubles.
• Cleaning of fan/drainage: 1500–2500 rubles.
• Refilling freon: 2500–4000 rubles.
• Replacement of the compressor: 5,000–12,000 rubles.
• Repair of the circuit board: 3,000–8,000 rubles.

In service centers, diagnostics are usually free if you agree to repairs.

Is it possible to refill freon yourself? refrigerator?

No. Refilling requires a vacuum pump, a pressure manifold and a cylinder with freon. Incorrect filling can lead to an explosion or poisoning (freon is toxic). In addition, before refueling, you need to find and eliminate the leak.

Why does the freezer work, but does not freeze to the desired temperature?

Probable causes:

• Clogged fan (needs defrosting).
• Faulty temperature sensor (needs replacement).
• Freon leak (needs diagnostics by a technician).
• Wear door seal (check the tightness with a sheet of paper).

Start by defrosting and checking the settings.