The refrigerator constantly freezes and does not turn off: reasons and what to do

Does your refrigerator work around the clock, does not turn off, but still freezes as expected? This is an alarming signal that cannot be ignored. Continuous operation of the compressor not only increases energy consumption by 30-50%, but also leads to premature wear of the equipment. In 80% of cases, the problem is solved without calling a technician - it is enough to correctly diagnose the cause.

In this article we will look at why the refrigerator does not turn off, but continues to freeze: from the banal all possible causes, according to which the refrigerator does not turn off, but continues to freeze: from the banal incorrect mode to serious breakdowns like freon leakage or jammed compressor. You will learn how to check the thermostat, sensors and No Frost system yourself, as well as when exactly it’s time to call a specialist. For convenience, we have collected a unique table of symptoms with exact signs of each malfunction this will help save time on diagnostics.

1. Is it normal for the refrigerator to work without stopping?

Before sounding the alarm, make sure that your refrigerator really should be turned off. Modern models with the No Frost or inverter compressors system can work longer than usual. For example:

• 🔹 Inverter refrigerators (LG, Samsung, Bosch) - the compressor regulates power smoothly and may not turn off for hours in the heat.
• 🔹 No Frost —fans and defrosting heaters turn on periodically, creating the illusion of continuous operation.
• 🔹 Super Freeze mode —activated manually and can last up to 72 hours (check the indicators on the panel!).

How to distinguish normal from breakdowns?

• ✅ Normal: the compressor runs for 20-30 minutes, turns off for 10-15 minutes (the cycle depends on the temperature in the room).
• ❌ Failure: the motor hums more than 2-3 hours in a row, the walls are covered with ice, food are frozen.

If your refrigerator is not an inverter model and is not in intensive freezing mode, but still does not turn off, read on.

2. Top 5 reasons why the refrigerator does not turn off, but freezes

We analyzed data from service centers for 2023-2026 and highlighted The most common reasons the continuous operation of the refrigerator. Here they are, in order from simple to complex:

Now let's look at each cause in detail - with symptoms and solutions.

3. Problems with the thermostat: how to check and replace

Thermostat (thermostat) - this is the “brain” of the refrigerator, which monitors the temperature and controls the compressor. If it breaks, the compressor either does not turn on at all, or works continuously.

Signs of a faulty thermostat:

• 🔧 The temperature control knob does not “click” when turn.
• 🔧 The compressor does not respond to changes in the position of the knob (for example, when switched to “0” it does not turn off).
• 🔧 In the refrigerator compartment too cold (food freezes), although the regulator is at the minimum value.

How to check the thermostat at home?

1. Unplug the refrigerator.
2. Remove the thermostat knob (usually it is secured with a latch or screw).
3. Under the handle find plastic rod —this is the thermostat. There should be contacts for the multimeter on it.
4. Put the multimeter in the “continuity” mode and check the circuit at different positions of the handle.

If the thermostat does not “ring” in any position, it needs to be replaced. For most models (Atlant, Indesit, Biryusa), a universal thermostat K-59 or TAM-133is suitable. Cost - from 500 to 1500 rubles.

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

Freon is a refrigerant that circulates through the refrigerator system and provides cooling. If a microcrack appears somewhere, the gas gradually evaporates, and the compressor begins to work for wear, trying to compensate for the loss of cold.

Signs of a freon leak:

• ❄️ The refrigerator freezes slightly (in the freezer the temperature is above -12°C).
• 🛢️ You can see oily stains on the tubes or the back wall (freon leaves along with the oil).
• 🔥 Compressor hot to the touch (norm: warm, but not scalding).
• ⚡ The electricity bill has increased by 1.5-2 times.

Fix the leak yourself impossible —special equipment is required for soldering pipes and refilling freon. However, you can to pre-diagnose problem:

1. Turn off the refrigerator and defrost it for 12-24 hours.
2. Turn it on again and listen: if the compressor is working, but there is no cold this is a sure sign of a leak.
3. Inspect condenser (the grill at the back of the refrigerator): if it room temperatureand should be hot - freon no.

⚠️ Attention: Freon has no odor, but in high concentrations can cause dizziness. If you suspect a leak, ventilate the room and do not turn on the refrigerator until repairs.

5. Clogged capillary tube: symptoms and solutions

Capillary tube is a thin channel through which freon enters the evaporator. Over time, it may become clogged oil, moisture or refrigerant decomposition products. As a result, freon does not circulate normally, and the compressor works without stopping, trying to “push” gas.

How to recognize a blockage:

• 🔍 Compressor hot, but condenser (grid at the back) cold.
• ❄️ The freezer is working fine, but the refrigerator is not working well cools.
• 🕒 After turning off the refrigerator does not turn on for a long time (the compressor “sticks”).

What can you do yourself?

• 🔧 Defrost the refrigerator for 24 hours. Sometimes the blockage is temporary (for example, due to moisture ingress).
• 🔧 Check whether the capillary pipeline is not whether it is pinched relevant after transporting the refrigerator).

If there is no blockage eliminated - it will be necessary flushing the system to replace the filter-drier. This procedure costs from 3,000 to 6,000 rubles at a service center.

What will happen if the blockage is not removed?

If you ignore the problem, the compressor will burn out in 1-3 months due to constant overload. Repairs will cost 70-80% of the cost of a new refrigerator.

6. Problems with the compressor: when replacement is needed

The compressor is the “heart” of the refrigerator. If it jammed or is worn out, the refrigerator may:

• 🔊 Humming louder than usual (sometimes with a metallic clang).
• 🔥 Overheat (the compressor housing burns your hand).
• ⚡ Consume electricity 2-3 times more than normal.

How to check the compressor:

1. Turn off the refrigerator and touch the compressor (the black “barrel” on the back). Normally it should be warm, but not hot.
2. Turn on the refrigerator and listen: if the motor does not start or buzzes, but does not freeze is a sign of a wedge.
3. Check start relay (box on the compressor): if it gets hot or smells like burning, replacement is required.

⚠️ Attention: If the compressor smoke, sparks or emits a strong chemical odor —immediately unplug the refrigerator! These are signs of a short circuit that can lead to a fire.

The cost of a new compressor is from 5,000 to 15,000 rubles (depending on the model). In most cases, it is more advisable to buy a new refrigerator if the old one is more than 10 years old.

7. Other reasons: sensors, seal, electronics

If all of the above problems do not apply, check:

• 🔌 Temperature sensor (in models with electronic control, for example, Samsung RB or LG DoorCooling+). If it breaks down, it may give incorrect signals to the control board.
• 🚪 Door seal. If the rubber is torn or deformed, warm air enters and the compressor runs without stopping. Check test with a sheet of paper: insert it between the door and the body - if the sheet falls out, the seal needs to be changed.
• 📱 Control board. In modern refrigerators (Bosch KIN, Liebherr), electronics can “glitch” after power surges. Try reset settings (turn off the refrigerator for 10 minutes).

FAQ: Frequently asked questions about refrigerators that do not turn off

My refrigerator Atlant works without stopping, but freezes normally. What to do?

First check:

1. The temperature in the room (if above +30°C, this is normal).
2. Operating mode ("Super Freeze" may be on).
3. Door seal (hold a lit match - if the flame fluctuates, there is a gap).

If everything is in order, but the refrigerator does not turn off for more than 8 hours, it is most likely faulty thermostat (this is a weak point). Replacing it will cost 800-1200 rubles. Atlantah this is a weak point). Replacing it will cost 800-1200 rubles.

Refrigerator Indesit does not turn off and gets very cold. What broke?

In 90% of cases it is:

• Stuck thermostat (especially in models Indesit BIAA 13).
• Freon leak due to corrosion of the tubes (check the oil on the back wall).

Urgently turn off the refrigerator and call a technician - continuous operation in this mode will lead to compressor burnout in 1-2 days.

Is it possible to refill freon yourself?

No. To refill you need:

• Vacuum pump.
• Gauge manifold.
• Cylinder with freon (usually R-134a or R-600a).
• Experience in soldering copper tubes.

An error during filling can lead to explosion. cylinder or freon poisoningContact the service.

How much does repair cost if the refrigerator does not turn off?

Prices in 2026:

Breakage	Repair cost (₽)
Replacing the thermostat	800–1500
Cleaning the capillary system	3000–6000
Refilling freon	2500–4000
Replacing the compressor	5000–15000

Cost depends on the model and region For an exact price. call a technician for diagnostics (usually free of charge).

How to extend the life of a refrigerator after repair?

Follow these rules:

• 🔌 Use stabilizer voltage (especially important for houses with old wiring).
• 🧊 Defrost the refrigerator every 6 months (even if it has No Frost).
• 🚫 Do not place the refrigerator next to battery, stove or window —overheating shortens the service life compressor.
• 🔧 Every 2 years, check door seal and, if necessary, lubricate it with silicone grease.