The refrigerator constantly works, but does not freeze: reasons and what to do

Does your refrigerator hum like an airplane on takeoff, the compressor does not turn off for a minute, but at the same time the temperature in the freezer is above zero, and food begins to spoil? This is a classic situation when technology works for wearbut does not fulfill its main function. There can be more than a dozen reasons for this behavior - from the banal clogging of the capillary tube to serious breakdowns in the refrigerant circulation system.

In this article we will look into all possible reasons, for which the refrigerator does not turn off and does not freeze - from the simplest (which you can fix yourself) to the complex (requiring the intervention of a specialist). You will also learn how to distinguish a temporary failure from a critical malfunctionto avoid wasting money on unnecessary repairs or, conversely, not to miss the moment when the equipment can still be restored.

1. Why does the refrigerator not turn off: normal or broken?

Before sounding the alarm, it is worth understanding how should a working refrigerator works. In normal mode, the compressor is turned on for 10–20 minutes, then rests for 30–40 minutes. The ratio of work and rest depends on:

• 🔹 room temperature (the hotter, the longer the motor runs)
• 🔹 Workload cameras (a large amount of warm food increases the load)
• 🔹 Cooling mode (for example, Super Freeze or Holiday Mode in models Samsung, LG, Indesit)
• 🔹 Conditions seal (worn rubber leads to cold leakage)

If the refrigerator works without stopping for more than 6–8 hours, and the temperature in the freezer does not fall below +5°C, this is 100% sign of malfunctionThe problem cannot be ignored: constant wear and tear leads to overheating of the compressor and its final failure.

2. TOP 5 reasons why the refrigerator does not freeze, but works

Let's start with the most common breakdowns, which occur in 80% of cases. Many of them can be diagnosed independently, without disassembling the equipment.

If your refrigerator is No Frost, another common problem is added - malfunction of the defrost system. Ice forms in the freezer, blocking air circulation, and the compressor tries to compensate for the lack of cold by continuously operating.

3. How to check the thermostat and thermostat?

Thermostat (or thermostat) is the “brain” of the refrigerator that controls the temperature and sends signals to the compressor. If it breaks down, the motor either works without stopping or does not turn on at all.

Check the thermostat. can be done in two ways:

1. Test with a multimeter:
   • 🔧 Unplug the refrigerator.
   • 🔧 Remove the protective cover (usually located inside the refrigerator compartment or on the top panel).
   • 🔧 Disconnect the thermostat terminals and ring it in resistance mode. At room temperature, the device should show 0 Ohm (closed), when cooling (for example, if you put the thermostat in ice) - ∞ (open).
2. Check "jumper":
   • 🔧 Disconnect the wires from the thermostat.
   • 🔧 Connect them together (short circuit).
   • 🔧 If the compressor starts, the thermostat is faulty.

In models with electronic control (for example, Samsung RB30J3000WW or LG GA-B409SQDL) instead of a mechanical thermostat, temperature sensoris used. Its verification requires special equipment, so it is better to contact the service.

What to do if the thermostat is working, but the refrigerator does not turn off?

If tests show that the thermostat is working, the problem may lie in:

- board malfunction control (in models with a display),

- stuck start relay contacts,

- incorrect mode settings (for example, activated Super Cool).

In this case, more in-depth diagnostics will be required.

4. Freon leakage: how to recognize and what to do?

Freon (refrigerant) is the “blood” of the refrigerator, which circulates through the system and removes heat. If it leaks, the compressor starts running idle, trying to catch up with cold, but to no avail: Signs of a leak:

• 🔍 The compressor is hot, but the freezer is not cooling.
• 🔍 There is no heat on the condenser tubes (rear wall).
• 🔍 You can hear gurgling or hissing in the system.
• 🔍 An oily stain may appear at the leak site (freon is mixed with oil).

The most common cause of leakage is corrosion of pipes (especially in older models) or mechanical damage (for example, when moving the refrigerator). In models No Frost freon can leak through microcracks in the evaporator.

⚠️ Attention! It is strictly not recommended to refill freon yourself. To do this, you need special equipment (vacuum pump, pressure gauges) and certified refrigerant. Incorrect refilling can lead to compressor explosion or poisoning. (freon is toxic in high concentrations).

The cost of repairing a leak and refilling freon in the service ranges from 3,500 to 8,000 rubles (depending on the model and complexity of the repair. In some cases (for example, if there is a leak). in the foamed part of the case) it is cheaper to buy a new refrigerator.

5. Capillary tube clogged: symptoms and solutions

Capillary tube is a thin channel through which freon enters the evaporator. Over time, it can become clogged:

• 🧊 Ice (if moisture has entered the system).
• 🛢️ Oil (when compressor oil decomposes).
• 🔧 Metal shavings (after compressor wear).

Signs of a blockage:

• 🔹 The freezer is slightly frosty, the refrigerator compartment is warm.
• 🔹 The compressor works without stopping, but does not build up pressure.
• 🔹 The condenser (grid at the back) is barely warm.

To remove the blockage, the master:

1. Blows the system with nitrogen under pressure.
2. Changes the filter drier.
3. Refills with new freon.

The cost of repairs is from 4,000 to 10,000 rubles. In some cases (for example, if the blockage is in the foamed part), the tube has to be replaced completely, which can cost up to 15,000 rubles.

The freezer freezes slightly, the refrigerator compartment does not cool|The compressor works non-stop, but does not pump in cold|The condenser (rear grill) is barely warm|Gurgling is heard in the system, but no hissing-->

6. Compressor breakdowns: when is repair pointless?

The compressor is the “heart” of the refrigerator, and its breakdown often means end of equipment life. You can recognize the malfunction by the following signs:

• 🔊 Compressor buzzes, but does not start (you can hear the start relay clicking).
• 🔥 Compressor housing excessively hot (more than 90°C).
• 🛠️ When checking with a multimeter, the windings show 0 Ohm (short circuit) or ∞ (break).
• 💥 The compressor turns on for 1-2 seconds and immediately turns off (protection is triggered).

The most common reasons for compressor failure:

• 🔹 Long-term wear-and-tear operation (for example, if there is a freon leak or a clogged system).
• 🔹 Power surges (especially important for houses with an unstable network).
• 🔹 Overheating due to lack of ventilation (the refrigerator is standing close to the wall).

⚠️ Attention! Replacing the compressor in refrigerators older than 10 years is often not economically feasible. The cost of work (from 8,000 to 15,000 rubles) may exceed the residual value of the equipment. The exception is premium models (Liebherr, Miele), where the new compressor will last another 10+ years.

If you decide to replace the compressor yourself, please note:

• 🔧 Required vacuum pump for pumping out old freon.
• 🔧 You need to accurately select the compressor model according to power and type of freon.
• 🔧 After replacement, it is mandatory checking the system for tightness.

7. Problems with the No Frost system: why doesn’t it freeze?

Refrigerators No Frost (Samsung, LG, Indesit, Atlant) have an additional unit - defrost system, which prevents the formation of ice. If it breaks, a snow “coat” builds up in the freezer, blocking air circulation. The compressor tries to compensate for the lack of cold and works without stopping.

Symptoms of malfunction No Frost:

• ❄️ Ice builds up in the freezer (especially on the back wall).
• 🌬️ The fan does not spin or is noisy.
• 🔥 The defrost heater does not turn on (can be checked with a multimeter).
• 💧 There are puddles of water under the refrigerator (ice is melting).

The most vulnerable elements of the system:

In some cases, the problem can be eliminated manual defrosting:

1. Unplug the refrigerator.
2. Take out all the food.
3. Leave the doors open for 12-24 hours (the ice should completely melt).
4. Wipe all surfaces dry.
5. Turn on the refrigerator and check the operation.

If the problem returns after defrosting, repair is required.

8. When should you call a repairman, and when should you buy a new refrigerator?

It is not advisable to repair all breakdowns. Here are guidelines that will help you make a decision:

• 🔧 It is worth repairing if:
  • 🔹 The refrigerator is less than 7 years old.
  • 🔹 The breakdown is not critical (thermostat, relay, seal).
  • 🔹 The cost of repairs does not exceed 30–40% of the price of a new refrigerator.
• 🛒 It is better to buy a new one if:
  • 🔹 The refrigerator is more than 10 years old.
  • 🔹 The compressor needs to be replaced or evaporator.
  • 🔹 Repair will cost more than 50% of the cost of new equipment.
  • 🔹 The model is outdated (for example, energy consumption class D or lower).

Average prices for repairs (2026 year):

• 🔹 Replacement of the thermostat - 1,500-3,000 ₽.
• 🔹 Elimination of freon leaks - 3,500-8,000 ₽.
• 🔹 Replacement of the compressor - 8 000–15,000 ₽.
• 🔹 System repair No Frost — 2 000–6 000 ₽.

⚠️ Attention! If the refrigerator is under warranty, do not try to repair it yourself! Most manufacturers (Atlant, Indesit, Beko) will void the warranty if they tamper with the design. Contact an authorized service center.

When choosing a new refrigerator, pay attention to:

• 🔹 Energy consumption class (optimal A+++ or A++).
• 🔹 Type of defrosting (No Frost more convenient, but more expensive to repair).
• 🔹 Volume of chambers (for a family of 3-4 people, 250-350 liters are enough).
• 🔹 Noise level (optimally up to 40 dB).

Popular reliable models of 2026:

• 🔹 Samsung RB30A32N0SA (No Frost, inverter compressor).
• 🔹 LG GA-B409SQDL (Smart Diagnosis, low noise level).
• 🔹 Atlant MXM 2835-100 (simple mechanics, inexpensive repairs).
• 🔹 Liebherr CTPes 3556 (premium class, 10 year warranty on the compressor).

FAQ: Frequently asked questions about refrigerator malfunctions

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

1. Check whether the door is closed tightly (perhaps the seal or dishes are in the way).

2. Make sure that mode Holiday or Super Cool.

3 is not activated. Defrost the refrigerator for 12–24 hours (especially if the model is No Frost).

4. Check if the compressor is hot. If it is cold, the problem is in the start relay or windings.

❓ Is it possible to refill freon yourself?

No. You need it for refilling vacuum pump, manometric manifold and certified freon. Incorrect filling can lead to compressor explosion or poisoning (freon is toxic in high concentrations). Contact service.

❓ How much does it cost to repair a refrigerator if it does not freeze?

The cost depends on the breakdown:

• 🔹 Replacement of the thermostat - 1,500–3,000 ₽.
• 🔹 Elimination of freon leak - 3,500–8,000 ₽.
• 🔹 Replacement of the compressor - 8,000–15,000 ₽.
• 🔹 Repair No Frost — 2 000–6 000 ₽.

If the refrigerator is more than 10 years old, repair may not be practical.

❓ Why does the refrigerator No Frost not freeze, but the fan works?

Probable reasons:

• 🔹 The defrost heating element is faulty (ice blocks circulation air).
• 🔹 The defrost sensor is broken (the system does not go into defrost mode).
• 🔹 Freon leak (the compressor works, but does not pump in cold).

Solution: defrost the refrigerator for 24 hours. If the problem returns, call a technician.

❓ How to extend the life of the refrigerator?

Follow simple rules:

• 🔹 Defrost the refrigerator at least once every 6 months (even if the model No Frost).
• 🔹 Do not put hot foods in the chamber.
• 🔹 Keep the seal clean (wash it with warm water and soap).
• 🔹 Leave a gap 5–10 cm between the refrigerator and the wall for ventilation.
• 🔹 Use voltage stabilizerif there are frequent jumps.