Samsung No Frost refrigerator is very cold: what to do and how to fix the problem

Have you noticed that your refrigerator has begun to work too hard? The food in the main chamber freezes, ice forms on the walls, and the compressor almost never turns off? This is a common problem faced by owners of models Samsung No Frost started working too hard? The food in the main chamber freezes, ice forms on the walls, and the compressor almost never turns off? This is a common problem that model owners face. RL, RB, RS and other series with the system No Frost. Unlike classic refrigerators, where freezing is often caused by a faulty thermostat, there can be several culprits - from incorrect settings to serious breakdowns of electronic components. No Frost There can be several culprits - from incorrect settings to serious breakdowns of electronic components.

In this article we will look at why a refrigerator 7 main reasonswhy a refrigerator Samsung with a system No Frost starts to freeze very much, and we will give step-by-step instructions on how to eliminate them. You will learn how to diagnose the problem yourself, which settings to check first, and in which cases you cannot do without calling a technician. We will pay special attention to models with inverter compressor (series Digital Inverter), which require a specific approach.

Before starting repairs, it is important to understand: The system No Frost is more complex than drip defrosting. Here, a fan is responsible for air circulation, and several sensors and an electronic control unit are responsible for temperature regulation. If at least one element fails, this can lead to uncontrolled cooling or, conversely, insufficient frost. Next, we will examine each possible cause in detail.

1. Incorrect temperature settings

The most commonplace, but also the most common cause of freezing is incorrectly set temperature. Refrigerators Samsung No Frost are often set to maximum cooling at the factory, especially after a power outage or factory reset. Optimal values for most models:

• 🥶 Refrigerator compartment: +3°C...+5°C (recommended +4°C)
• ❄️ Freezer compartment: −18°C...−20°C (for long-term storage −18°C)

To check the current settings:

1. Press the button Fridge (or Temp) on the control panel.
2. Hold it 3 seconds until the temperature indicator lights up.
3. Use the +/− buttons to set the value to +4°C for the refrigerator compartment.
4. Repeat for the freezer compartment (button Freezer).

If after adjustment the temperature has not stabilized within 12–24 hours, the problem lies deeper. Please note: in models with Twin Cooling Plus (two independent cooling systems), the settings for each chamber are adjusted separately. Also check if the mode "Super Freeze" or "Power Cool" is activated - they can automatically turn on when the door is opened or in the heat.

2. Clogged ventilation system No Frost

The system No Frost involves forced circulation of cold air through the fan and air ducts. If these channels are clogged with dust, ice or foreign objects, the uniform distribution of cold is disrupted. As a result:

• ❄️ In some areas the temperature drops below normal (food freezes).
• 🔥 In others, it increases (the risk of food spoilage).
• 🌀 The compressor works non-stop, trying to compensate for the imbalance.

How to clean the system:

Pay special attention evaporator —it is located behind the back wall of the freezer. In models Samsung with No Frost the evaporator often freezes due to a faulty defrost heater. thick layer of ice, it will be necessary complete defrosting (at least 24 hours) and checking the defrosting system.

⚠️ Attention: Do not use sharp objects to clean the fan or air ducts! This may damage plastic parts and lead to freon leakage. To remove ice, use a plastic scraper or hair dryer (at minimum power, holding at a distance of 30 cm).

3. Malfunction of the temperature sensor

In refrigerators Samsung No Frost they are responsible for temperature control thermistors (resistance sensors). They transmit data to the electronic control unit, which regulates the operation of the compressor. If the sensor fails, the unit receives incorrect information and causes the compressor to work continuously.

Signs of a faulty sensor:

• 📉 Temperature in the chamber drops to −5°C...−10°C (in the refrigerator compartment!).
• 🔄 The compressor does not turn off or runs in cycles of 1–2 minutes.
• 🚨 An error flashes on the display (for example, 5E, 8E — for models with self-diagnosis).

How to check the sensor yourself:

1. Disconnect the refrigerator from the power supply.
2. Remove the back panel in the refrigerator compartment (usually the sensor is located next to the evaporator or on the back wall).
3. Disconnect the sensor connector and measure its resistance multimeter at room temperature (~20°C).
4. Compare with the nominal value (for most models Samsung —5–10 kOhm at 20°C).

If the resistance of the sensor is not normal or equal to zero/infinity, it must be replaced. For models Samsung original sensors are designated as DA47-00019A (refrigerator compartment) or DA47-00020A (freezer). When replacing, be sure to unplug the refrigerator and discharge the capacitors (wait 10 minutes after disconnecting).

4. Failure of the electronic control unit

The electronic module (control board) is the “brain” of the refrigerator. It processes signals from the sensors and controls the compressor, fan and defrost system. If the unit fails, the refrigerator can:

• 🥶 Freeze food due to false commands. compressor.
• 🔥 Stop freezing altogether (if the control triac is burned out).
• 🚨 Give errors 8E, 11E, 22E (depending on the model).

Causes of block failure:

• ⚡ Power surges in the network (a common problem in houses with old wiring).
• 💧 Moisture on the board (for example, during defrosting).
• 🔌 Short circuit in the sensor or compressor circuit.

DIY Repair boards is possible only if you have experience working with electronics. In most cases, the following is required:

1. Diagnostics with a multimeter (checking power supply, resistance of key elements).
2. Visual inspection for burnt tracks or swollen capacitors.
3. Reflashing the microcontroller (if the problem is in the software provision).

⚠️ Attention: If you are not confident in your skills, do not try to repair the board yourself! Incorrect handling may lead to in case of complete failure of the refrigerator or even a fire. In service centers Samsung the cost of repairing the circuit board is 30-50% of the price of a new refrigerator - sometimes it is more profitable to consider replacing the equipment.

For a temporary solution (if the refrigerator is freezing, but it doesn’t give any errors) you can try resetting the board settings:

1. Unplug the refrigerator for 10 minutes.
2. Turn it back on and immediately press the combination:
- For models with a display: Power Cool + Fridge + Freezer (hold for 5 seconds).
- For models without a display: Emergency button (Alarm) + Temp (hold for 8 seconds).
3. The refrigerator will reboot with factory settings.

5. Problems with the defrost system (heater, timer, fuse)

In refrigerators No Frost ice on the evaporator is regularly removed using a defrost system, which includes:

• 🔥 Defrost heater (defrosts the evaporator).
• ⏱️ Defrost timer (or electronic controller).
• 🔌 Fuse (protects against overheating).

If any of these elements fails, the evaporator becomes covered with ice, blocking air circulation. The compressor begins to work harder, trying to compensate for the lack of cold, which leads to freezing.

How to diagnose the problem:

1. Turn off the refrigerator and defrost it completely (24 hours).
2. After turning it on, check if ice appears on the back wall of the freezer within 12 hours.
3. If ice forms again, the problem is in the defrosting system.

The most vulnerable elements:

• 🔥 Heater: Test it with a multimeter - the resistance should be 20–50 Ohms. If there is a break or short circuit, replacement is required.
• ⏱️ Timer: Check whether its rod rotates forcibly (with a screwdriver). If not, replace it.
• 🔌 Fuse: Should ring (resistance ~0 Ohm). If there is a break, replace it with a similar one.

In models Samsung with electronic control (for example, series Family Hub) instead of a mechanical timer, defrost controlleris used, which is part of the main board. Replacing it requires specialized equipment.

How to temporarily bypass a faulty defrost heater?

If the heater is burned out and there is no way to replace it right away, you can manually defrost the refrigerator every 2-3 days. To do this:

1. Turn off the power.

2. Remove food from the freezer.

3. Place a heating pad with hot water in the chamber or point the fan at the evaporator.

4. After the ice has completely thawed, wipe it dry and turn on the refrigerator.

This method does not solve the problem, but it will allow you to temporarily use the equipment without the risk of freezing.

6. Freon leak or clogged capillary tube

If the refrigerator Samsung No Frost is very cold, but at the same time The freezer is working normally, but the refrigerator is freezing, there may be a freon leak or a blockage in The capillary tube. This is a serious malfunction that requires professional repair, but you can diagnose it yourself.

Signs of a freon leak:

• 🧊 The refrigerator compartment is covered with ice, and the freezer is operating normally.
• 🔊 The compressor works non-stop, but does not create enough cold.
• 🛠️ Oil stains are visible on the back wall of the refrigerator (near the compressor).

Reasons leaks:

• 🔧 Mechanical damage to the circuit (for example, when moving the refrigerator).
• 🕳️ Corrosion of tubes (in old models or with high humidity).
• 🔥 Overheating of the compressor (leads to increased pressure and depressurization).

What to do:

1. Turn off the refrigerator and inspect the back wall for oil traces.
2. If stains are found - do not turn on the refrigerator before repair!
3. Contact to the service center. Repair includes:
   • Searching for a leak (using a leak detector).
   • Restoring tightness (soldering, replacing tubes).
   • Evacuating the system and charging with freon.

⚠️ Attention: Independent refilling freon without special equipment and certification prohibited by law (RF Government Decree No. 832 of 2016). Incorrect refueling can lead to an explosion or gas poisoning!

The cost of repairs for freon leaks in service centers Samsung ranges from 5,000 to 15 000 rubles (depending on the model and scope of work). In some cases (for example, when the condenser is corroded), it is more profitable to consider purchasing a new refrigerator.

7. Malfunction of the compressor or inverter module

The compressor is the “heart” of the refrigerator, which pumps freon through the system. The models Samsung use two types of compressors:

• 🔄 Conventional (linear): They are turned on/off at the command of the thermostat.
• 🌀 Inverter (Digital Inverter): Operate continuously, regulating power.

Signs of a compressor malfunction:

• 🔊 Strong noise or vibration during operation.
• 🥶 The refrigerator freezes without stopping, but does not reach the set temperature.
• 🚨 Error display 1E, 4E, CE (for inverter models).
• 🔌 The compressor does not turn on at all (no characteristic hum).

Compressor diagnostics:

1. Turn off the refrigerator and touch the compressor (black cylinder at the back). If it is hot, interturn breakdown of the windings is possible.
2. Ring the windings with a multimeter:
   • Resistance between contacts C-S (common and starting winding): 15–30 Ohms.
   • Resistance between C-R (common and working winding): 10–20 Ohm.
   • Resistance between S-R (starting and working): the sum of the two previous values.

If the resistance is 0 or ∞ - the compressor is faulty.

Features of inverter compressors (Digital Inverter):

• 🛠️ They do not have a start relay, instead an inverter module is used inverter module.
• 🔧 Repair is possible only at a service center (specialized equipment for diagnostics is required).
• 💰 The cost of replacing an inverter compressor is from 8,000 to 20,000 rubles.

If the compressor is burned out, but the refrigerator is relatively new (up to 5 years), it makes sense to consider a replacement under warranty. In models older than 7 years, repairs may be unprofitable - the cost of work often exceeds 50% of the price. a new refrigerator.

FAQ: Frequently asked questions about freezing in Samsung No Frost refrigerators

❓ Why does the Samsung No Frost refrigerator freeze in only one corner?

This is a typical sign clogged air ducts or fan malfunction. In the system No Frost cold air is distributed throughout the chamber through special channels. If one of them is clogged with ice or. dust, cold flows only to certain areas. Try:

1. Defrost the refrigerator for 24 hours.
2. Check the operation of the fan (it should rotate without noise).
3. Clean the air ducts with a soft brush.

If the problem remains, it may be faulty air duct damper (in models with Multi Flow).

❓ Is it possible to turn off No Frost and switch the refrigerator to normal mode?

No, the system No Frost is a design feature of the refrigerator, and it is impossible to turn it off. However, in some models Samsung (for example, series RS-6*) there is a mode Vacationthat turns off the refrigerator compartment, leaving operate only the freezer. This allows you to save energy during long-term absence.

If you need a refrigerator with a drip system, you will have to consider replacing the equipment. Attempts to “deceive” the system No Frost (for example, by turning off the fan) will lead to damage. compressor or overheating.

❓ Samsung refrigerator displays error 5E and is very cold. What does this mean?

Error 5E in refrigerators Samsung No Frost indicates on problem with the refrigerator compartment temperature sensor. It could be:

• Open or short circuit in the sensor circuit.
• Oxidation of contacts on the control board.
• Malfunction of the electronic unit itself.

To eliminate error:

1. Disconnect the refrigerator for 10 minutes (reset the error).
2. Check the resistance of the sensor (should be 5-10 kOhm at 20°C).
3. Inspect the connectors on the board - if oxidized, clean them with alcohol.

If the error appears again, the sensor needs to be replaced or the board repaired.

❓ After defrosting, the Samsung refrigerator began to freeze more strongly. Is this normal?

Yes, in the first 12–24 hours after defrosting, the refrigerator may work more intensely. This is due to:

• 🧊 The accumulation of cold in the evaporator (the compressor works longer to restore the temperature).
• 🌡️ Calibration of sensors (the electronics “get used” to new conditions).

If after a day the operation has not returned to normal, check:

• If the mode is turned on Power Cool or Super Freeze.
• If the air ducts are clogged with ice (sometimes after defrosting, ice remains in hard-to-reach places).
• Are the sensors damaged during cleaning (for example, when using sharp items).

❓ How much does it cost to repair a Samsung No Frost refrigerator if it is very cold?

The cost of repair depends on the cause of the malfunction and the model of the refrigerator. Approximate prices in service centers (2026):

Type of fault	Cost (rub)	Notes
Replacement of temperature sensor	1 500–3 000	Includes diagnostics and work
Repair of the control board	3 000–8 000	Depends on the complexity (replacing elements or flashing)
Replacing the defrost heater	2 500–4 500	Often requires disassembling the freezer
Elimination freon leaks	5 000–15 000	Includes refilling and leak testing
Replacement of the compressor	8 000–20 000	More expensive for inverter models

If the refrigerator is under warranty, repairs can be free (provided that the breakdown is not the fault of the user). Before contacting the service, check:

• 📄 Availability of a warranty card.
• 🔧 No traces of self-repair (this will void the warranty).