Samsung refrigerator works non-stop: what to do and how to fix the problem

Does your refrigerator Samsung work around the clock without breaks, the compressor hums incessantly, and too much ice forms in the freezer? This is not just an annoying noise - continuous operation it can signal serious malfunctions that lead to increased energy consumption, overheating of equipment and even food spoilage. In 80% of cases, the problem can be fixed independently, without resorting to expensive repairs.

In this article we will analyze all possible reasons forwhich refrigerator Samsung (including models No Frost, Digital Inverter and classic compressor) can work without stopping - from banal condenser contamination to breakdown thermostat or leaks freon. You will receive step-by-step instructions for diagnostics, checklists and advice on how to temporarily reduce the load on equipment if repairs are postponed.

We will pay special attention models with a display (series RF, RS, RB), where errors are displayed in the form of codes - we will decipher them and explain what to do next. And if your refrigerator is still under warranty, we’ll show you how not to lose it by doing it yourself.

Why the Samsung refrigerator does not turn off: top 7 reasons

Continuous operation of the compressor is always a consequence one or more malfunctions. Listed below the most common causesranked from the simplest (which you can fix in 10 minutes) to complex (requiring the intervention of a specialist).

• 🔥 The condenser is dirty - dust and dirt on the rear grille worsen heat transfer, causing the compressor is working to wear out.
• ❄️ Incorrect temperature —the mode is set too low (for example, -24°C in the freezer when +2°C in the refrigerator compartment).
• 🚪 Problems with the door seal —even a small gap leads to a constant flow of warm air.
• 📉 Electronic module failure —typical for models with a display (Samsung RF23, RS27 etc.).
• 🧊 Freon leak —the compressor tries to compensate for the loss of refrigerant, working without interruptions.
• 🔧 Failure of the thermostat or temperature sensor —the system does not receive a signal that the desired temperature has been reached.
• ⚡ Compressor malfunction —wear or jamming leads to constant operation without shutdown cycles.

You can check and correct the first three points on your ownwithout disassembling the refrigerator. The rest will require diagnostics using a multimeter or special equipment.

First steps: what to do right now

Before disassembling the refrigerator or calling a technician, follow basic checks. They will help eliminate simple causes and save time.

Check that the door is tightly closed (there are no cracks)

Make sure that the temperature is set within +3...+5°C for the refrigerator compartment

Clean the rear grill (condenser) from dust

Turn off the "Super Freeze" or "Quick Cooling" mode

Check whether the freezer is not overloaded with products -->

If after these manipulations the compressor has not started to turn off within 1–2 hours, proceed to deeper diagnostics. Please note: some models Samsung (for example, RB37J5240SA) have the adaptive cooling function, in which the compressor may run longer than usual after loading a large number of products. In this case, wait 6–8 hours.

⚠️ Attention: If the refrigerator Samsung s display shows an error code (for example, 5E, 8E or 22E), immediately check its value with the official documentation. Some errors (for example 22E - freon leak) require urgent shutdown technique to avoid damage to the compressor.

Diagnostics by model: No Frost vs. drip system

Refrigerators Samsung are divided into two main types according to the defrosting system: No Frost (without frost) and drip (with manual or semi-automatic defrosting). The troubleshooting algorithm for them is different.

For models No Frost (for example, Samsung RL38M7140SA) icing of the fan. data-i="150">grinding is one of the most common reasons for continuous operation. If you hear the fan grinds or does not rotate, it means that ice is blocking its blades. In this case:

1. Unplug the refrigerator.
2. Take out all the food and leave the door open for 12-24 hours.
3. After defrosting, check if the fan rotates manually (carefully twist the blades).
4. If the problem recurs, the defrost heater or defrost sensor needs to be replaced.

Checking the thermostat and temperature sensors

If the refrigerator does not respond to temperature changes. (for example, you set +7°C, and it continues to cool to +2°C), the problem is most likely in thermostat or sensor. Models Samsung with electronic control (series RF, RS) use several sensors:

• 🌡️ fridge compartment sensor —responsible for the temperature in the main compartment.
• ❄️ Sensor freezer —controls the freezer.
• 🔄 Condenser sensor —monitors the heating temperature of the compressor.

To check the sensors you will need multimeter. Algorithm of actions:

1. Disconnect the refrigerator from the network.
2. Remove the back panel (in some models, the sensors are located behind a plastic cover inside the chamber).
3. Disconnect the sensor connector and measure its resistance:
   • At room temperature (+20…+25°C), the resistance should be within 5–7 kOhm.
   • If you lower the sensor into ice (0°C), the resistance should increase to 20–30 kOhm.

If the readings do not change or are equal 0/∞ the sensor is faulty and requires replacement.

In mechanical refrigerators (for example, Samsung RT22HAR4DSA) instead of sensors thermostat. To check it:

1. Find the thermostat (usually located inside the refrigerator compartment, under the lid).
2. Remove the terminals and short them together (simulating a command to turn on the compressor).
3. If the compressor starts - The thermostat is faulty.

⚠️ Attention: In refrigerators Samsung s Digital Inverter (for example, RB37J5240SS) the thermostat is integrated into the electronic module. Replacing it requires flashing or a complete replacement of the board, which is best entrusted to a service center.

Freon leak: how to recognize and what to do

If a Samsung refrigerator runs nonstop, but hardly cools at all, there is a 90% probability that this is a freon leak. The refrigerant leaks through microcracks in the tubes, and the compressor tries to “catch up” the cold, working at the limit of its capabilities. Signs of a leak:

• 🔴 The compressor is hot to the touch and does not turn off.
• ❄️ The freezer is warmer than it should be (for example, -8°C instead of -18°C).
• 💧 Oil stains are visible on the back wall of the refrigerator (freon is mixed with compressor oil).

Fix the leak yourself impossible —special equipment is required to vacuum the system and refill freon. However, you can temporarily reduce the load on the compressor:

1. Set the lowest possible temperature (for example, -12°C in the freezer instead -18°C).
2. Remove all unnecessary products from the refrigerator to reduce the volume of refrigerated space.
3. If there is ice on the back wall, defrost the refrigerator (this will reduce the load on the compressor).

The cost of repairs for a freon leak in a service center Samsung is from 3,500 to 8,000 rubles (depending on the model and volume of refrigerant). If the refrigerator is more than 7 years old, it is sometimes cheaper to buy a new one.

What happens if you ignore a freon leak?

Long-term operation of the compressor without refrigerant leads to its overheating and short circuit. In this case, the compressor will need to be replaced, which will cost (plus the cost of freon and work). In addition, oil stains from freon can damage seals and plastic parts, which will aggravate the breakdown. 10,000–15,000 rubles (plus the cost of freon and labor). In addition, oil stains from freon can damage seals and plastic parts, which will aggravate the breakdown.

Errors on the display: interpretation and reset methods

Refrigerators Samsung with display (series RF, RS, RB) display error codes that help more accurately diagnose the problem. Below - decoding the most critical errorsrelated to the continuous operation of the compressor:

To reset the error on the display:

1. Disconnect the refrigerator from the mains for 1-2 minutes.
2. Plug it back in and wait 10-15 minutes (the system should perform self-diagnosis).
3. If the error remains, press and hold the button Freezer (or Fridge, depending on the model) for 5-8 seconds.

For models with touch display (for example, Samsung Family Hub) the reset is performed through the menu: Settings → Support → Error reset.

When to call a technician: signs of serious breakdowns

Some malfunction it is impossible to fix it yourself without special skills and tools Contact the service center Samsungif:

• 🔧 The compressor is working, but the refrigerator does not cool at all (possibly a freon leak or compressor failure).
• ⚡ The display shows an error 22E, 40E or 41E, and resetting does not help.
• 🔥 Refrigerator body electric shock or it smells like burning (risk of short circuit).
• 🛠️ After defrosting, the problem repeats within 24 hours (the electronic module may malfunction).

Cost of repairs in official service centers Samsung (as of 2026):

• Replacement of thermostat/sensor: 2,000–4,500 rub.
• Elimination freon leaks + refilling: 3,500–8,000 rub.
• Compressor repair/replacement: RUB 8,000–15,000
• Electronic module replacement: RUB 5,000–12,000

⚠️ Attention: If the refrigerator is under warranty, do not disassemble it yourself. This may result in refusal of free repair. The warranty card is valid provided that the seals on the compressor and electronic module are not broken.

FAQ: Frequently asked questions about the continuous operation of the Samsung refrigerator

My Samsung No Frost refrigerator works without stopping, but it freezes normally. What's wrong?

Most likely, the problem is fan or heater defrost. models No Frost the fan must be turned off periodically to defrost the evaporator. If it is blocked by ice or broken, the compressor runs continuously. Try defrosting the refrigerator for 24 hours. If the problem persists, the fan or heater must be replaced.

Error 5E is displayed on the display. Is it possible to use the refrigerator?

Error 5E indicates a malfunction refrigerator compartment sensor. The refrigerator will work, but the temperature may not be adjusted correctly (for example, it may freeze food in the main chamber). It is recommended disable it before replacing the sensor to avoid food spoilage.

After moving, the Samsung refrigerator began to work without stopping. What should I do?

Probably. during transportation occurred displacement. compressor or damage to the pipes with freon. Do not turn on the refrigerator for at least 4-6 hours after transportation (the oil in the compressor should drain). If the problem remains, check whether the tubes on the back wall are bent and there are no freon leaks (oil stains).

The Samsung Digital Inverter refrigerator runs quietly, but does not turn off. Is this normal?

Models with Digital Inverter (for example, RB37J5240) may work longer than usual due to adaptive cooling algorithm. If the temperature in the chambers is stable and the compressor does not overheat, this is normal. But if the refrigerator does not turn off. for days check the sensors or reset errors through the menu.

Is it possible to fill freon into a Samsung refrigerator yourself?

No. Refilling freon is required special equipment (vacuum pump, pressure gauges, refrigerant cylinder) and skills. Incorrect filling can lead to compressor damage or explosion (freon is flammable when mixed with air). Contact the service center.