How to properly turn on No Frost in a Samsung refrigerator: instructions for all models

Technology No Frost in refrigerators Samsung eliminates the need for manual defrosting, but many users are faced with the question: how exactly does this mode turn on? Despite the automated operation of the system, some models require preliminary configuration or activation through the control panel. In this article, we will analyze all the ways to turn it on No Frost —from basic to hidden functions, and also explain why in some cases the mode may not work.

It is important to understand that No Frost is not a separate button, but a complex ventilation and cooling system. In most modern refrigerators Samsung (series RB, RS, RF 2018–2026) it is activated by default. However, after a factory reset, moving house, or an extended power outage, you may need to set it up again. Below are step-by-step instructions for different types of control panels.

How to determine that the refrigerator has No Frost

Before trying to turn on the mode, make sure that your model Samsung is actually equipped with technology No Frost. Here are the key signs:

• 🔍 Markings on the body: look for inscriptions "No Frost", "Frost Free" or "Total No Frost" on the sticker inside the camera or on the front panel.
• 📄 Device passport: the technical specifications should indicate "Defrost system: No Frost".
• 🌬️ Ventilation holes: in the back wall of the refrigerator compartment you can see grilles for air circulation (in models Samsung RB3000, RS5000 and newer).
• ❄️ Lack of frost: if after a month of use ice does not form on the back wall, it is most likely No Frost already working.

If your refrigerator was manufactured before 2015 or belongs to a budget series (for example, Samsung RT20), there is a high probability that they use a drip defrosting system (Direct Cool). In this case, there is no mode No Frost in principle - it cannot be turned on programmatically.

Methods of enabling No Frost on different Samsung models

The activation method depends on the type of control panel. Let's consider all options - from mechanical to touch screens.

1. Refrigerators with mechanical control (buttons/controls)

In models without a display (for example, Samsung RB29FSRND) No Frost turns on automatically when first connected to the network. However, if the refrigerator has been unplugged for a long time or has been reset, follow these steps:

1. Unplug the refrigerator for 5-10 minutes, then again turn on.
2. Set the refrigerator temperature regulator to position "3–4" (average value).
3. For the freezer, select "-18°C" or "Fast Freeze" (if available).
4. Wait 24 hours - the system No Frost will start working after the temperature has stabilized.

⚠️ Attention: In mechanical models there is no separate button for No FrostIf after switching on the fan does not make noise, and frost forms on the back wall, the fan or sensor may be faulty. In this case, it is required. diagnostics.

2. Refrigerators with an electronic display (RB, RS, RF series 2016–2026)

In devices with a touch panel (for example, Samsung RF56A9671SG), settings are performed through the menu. Instructions:

1. Press the button "Menu" or "Settings" (depending on the model).
2. Go to the section "Temperature Control" or "Cooling Mode".
3. Select item "No Frost" or "Auto Defrost".
4. Activate the mode by pressing "OK" or "Select".
5. Confirm saving the settings (on some models you need to hold the button for 3 seconds).

The indicator should appear on the display "No Frost" or fan icon (🌀). If it is not there, check whether the mode is disabled in the service menu (more on this below).

3. Models with the "Smart Convertible" function (flexible distribution). zones)

In refrigerators Samsung with technology FlexZone (for example, RF23A9671SG) No Frost works differently. Here the mode is activated automatically when you select the cooling mode:

• 🍦 "Freezer" (freezer): No Frost always on.
• 🥬 "Fridge" (refrigerator compartment): the mode is activated at a temperature lower +5°C.
• 🍷 "Soft Freeze" (freshness zone): No Frost operates at reduced power.

To force ventilation, turn the zone switch to position "Freezer" for 1-2 hours, then return it back.

What to do if No Frost does not turn on

If after all the manipulations the mode is not activated, the reasons may be as follows:

🔧 Service menu: In some models Samsung the mode No Frost is disabled through the engineering menu (for example, after repair) To return the settings, do:

1. Unplug the refrigerator.
2. Press and hold the "Power Cool" + "Lighting" (or "Fridge" + "Freezer") buttons.
3. Turn on the power without releasing the button for 8 seconds.
4. "Defrost" and select "Auto".

In models 2022–2026 (series Bespoke), the service menu is locked - official software is required to reset Samsung Smart Service.

Common errors when turning on No Frost

Many users accidentally turn off the mode or set it up incorrectly. Here are typical mistakes:

• ❌ Manual defrosting "on the forehead": chipping ice with a knife or hair dryer damages the system No Frost and leads to freon leakage.
• ❌ Ignoring the indicators: if on the display lights "Ice Off" or "Defrost", the mode is already running - it cannot be interrupted.
• ❌ Incorrect temperature: when installing +8°C a fan in the refrigerator compartment No Frost may not start.
• ❌ Blocking vents: if food overlaps the grilles, the system turns off automatically.

⚠️ Attention: If after switching on No Frost The refrigerator began to make a lot of noise or get hot on the sides - this is normal! In the first 2–3 hours, the fan operates at maximum power to equalize the temperature. If the noise does not stop after a day, check the fan fastening (play in the blades is possible).

How to check that No Frost is working correctly

To make sure the system is working properly, perform the test:

1. Place a thermometer in the center of the refrigerator compartment and set the temperature +4°C.
2. Close the door and wait 6 hours.
3. Open the refrigerator and check:
   • 🌡️ Temperature on the thermometer 3–5°C.
   • 👂 Light fan noise (should subside 1-2 minutes after opening doors).
   • 👁️ There are no drops of water or frost on the back wall.

Repeat the test for the freezer (the temperature should be -18°C).

If at least one point is not fulfilled, the system No Frost is not working correctly. B In 80% of cases, the problem is solved resetting the settings (hold "Power Cool" + "Power Freeze" 10 seconds).

What to do if after the test in the freezer it is -12°C instead of -18°C?

This is a sign of a compressor malfunction or a freon leak. Do not try to “cure” it yourself - refrigerant refilling is required (cost from 3,500 ₽ in service centers Samsung).

Features of No Frost in Samsung refrigerators with an inverter compressor

Models with inverter compressors (Samsung RB37J5230SA, RS62R5001M9 etc.) have an improved system No Frost, which adapts to the loading of products. There are several nuances:

• 🔄 Dynamic cooling: the fan automatically changes speed depending on the temperature inside.
• ⚡ Energy saving: with a small amount of food, the compressor operates at 30% power, which can create the illusion of “not working” No Frost.
• 🛠️ Self-diagnosis: if there is a failure, the system displays an error code (for example, "5E" - problem with the fan).

In such refrigerators No Frost cannot be turned off manually - it is integrated into the compressor operation algorithm. If it seems to you that the mode is inactive, check:

1. Is the indicator on "Eco" (the economy mode may be limiting). fan operation).
2. Is the freezer compartment overloaded (when filled >80%, air circulation worsens).
3. Is the (vacation) mode activated, which turns off the refrigerator compartment. "Vacation" (vacation), which turns off the refrigerator compartment.

Frequently asked questions about No Frost in refrigerators Samsung

🔹 Is it necessary to defrost a refrigerator with No Frost?

Yes, but very rarely - once every 1-2 years for hygienic cleaning. Turn off the refrigerator, wash the shelves and seals, then wipe the system dry. No Frost does not require defrosting in the usual sense, but. accumulation of dust on the fan can impair its operation.

🔹 Why did the refrigerator begin to make more noise after turning on No Frost?

This is normal in the first day - the fan operates at maximum power to equalize the temperature. If the noise does not go away after 48 hours, check:

• Is the refrigerator level (the adjustable legs should be level). touch the floor).
• Is the back wall of the furniture touching (there should be a gap of 5-10 cm).
• Is there a foreign object getting into the ventilation openings.

In models with Digital Inverter the compressor noise may resemble a “buzzing” - this is a feature of the technology.

🔹 Is it possible to disable No Frost if it interferes?

In most models Samsung you cannot disable No Frost this is the normal operating mode. data-i="225">(double-circuit cooling), where you can switch the freezer to Dual Cooling (double-circuit cooling), where you can switch the freezer to Direct Cool through the service menu. However, this will lead to manual defrosting every 3-6 months.

🔹 Why does ice form in the freezer, despite No Frost?

The reasons may be different:

• 🚪 The door seal is damaged —cold air comes out, moisture condenses.
• 🔧 Drainage clogged holes —water does not drain, freezes at the bottom.
• ❄️ Frequent opening of the door —warm air gets inside, frost forms.
• 🛠️ Malfunction of the defrost heater (detail DA97-10493B).

Check the seal for wear (the gasket must be elastic, without cracks). If ice appears only in one corner, the problem is local freezing of the drainage.

🔹 How to reset the No Frost settings after moving?

After transportation, the refrigerator needs to be “rebooted”:

1. Disconnect from the network for 12 hours (this is necessary) to stabilize the oil in the compressor).
2. Turn on the refrigerator and immediately press "Power Cool" + "Power Freeze" for 5 seconds.
3. Set the temperature +4°C for the refrigeration chamber and -18°C for freezer.
4. Do not load food for 6 hours - let the system adapt.

If after this the fan does not start, diagnostics of the control board is required.