Have you noticed on the display of your refrigerator Samsung a flashing inscription «Alarm ON» or heard a continuous beep? This is not just a random notification - this is how a smart system reports a malfunction or critical deviation from the norm. Depending on the model (RB37J5, RS62R5, RF23** etc.), the reasons may vary from a banal door opening to serious damage to the compressor or sensors. In this article, we will analyze in detail all possible scenarios accompanied by an alarm Alarm ON, we will learn how to diagnose and eliminate them - from basic actions to cases when you cannot do without a specialist.
It is important to understand: ignoring an alarm signal can lead to damage to products, increased energy consumption, or even failure of equipment. For example, if Alarm ON caused by overheating of the motor, further operation without intervention is fraught with breakdown of the compressor - one of the most expensive parts of the refrigerator. On the other hand, sometimes the problem is solved literally in a minute - just close the door tightly or reboot the system.
We have collected up-to-date information on models Samsung of the last 5 years (including series with Twin Cooling Plus and No Frost), and also took into account the nuances associated with the brand Software SmartThings. If your refrigerator was released before 2018, some features may be missing - this is normal. The main thing is to correctly identify the cause of the signal.
What does “Alarm ON” mean on a Samsung refrigerator: decoding the signal
The inscription «Alarm ON» (sometimes accompanied by a red indicator or sound beeper) is a universal notification about critical error the operation of the refrigerator. Unlike regular notifications (eg high temperature), this alarm indicates a fault that requires immediate response. In models Samsung with a display, an error code may be displayed next to the inscription (for example, E1, 22E), which narrows the range of possible problems.
In fact, Alarm ON is an analogue of the “-check engine” in a car: itself by itself, it does not say what exactly is broken, but it makes it clear: something went wrong. In refrigerators Samsung this signal is activated in the following cases:
- 🔴 Temperature violation - in one or both chambers (refrigerator/freezer) the temperature has gone beyond the permissible limits.
- 🚪 Problems with doors —long opening, loose seal or breakdown of the closing sensor.
- ❄️ Failures in the defrosting system —for models with
No Frost(for example, RS62R5001SA). - ⚡ Electrical problems —voltage surges, compressor overheating or failures in the control board.
- 🔧 Mechanical breakdowns —fan jamming, freon leak, thermostat failure.
In most cases, the signal Alarm ON is accompanied by error code (for example, 1E, 5E, 22E). These codes are the key to accurate diagnosis. For example:
| Error code | Meaning | Typical models |
|---|---|---|
1E |
Problem with the refrigerator compartment temperature sensor | RB37J5, RF23 |
5E |
Faulty freezer compartment sensor | RS62R5, RS55N6 |
22E |
Failure in the defrosting system (No Frost) |
RS21DCNS, RB30J3** |
4E |
Fan or duct problems | RF24FSEDBSR, RF23HCEDBSR |
If the display shows only “Alarm ON” without an error code, this almost always indicates problems with the doors or a sudden increase in temperature due to prolonged opening. In this case, the refrigerator Samsung can automatically turn off the cooling to prevent freezing evaporator.
Cause No. 1: open door or damaged seal
The most common cause of occurrence «Alarm ON» is a door not tightly closed or wear of the rubber seal B. refrigerators Samsung with closing sensors (for example, series Family Hub), the signal is triggered within 1-2 minutes after opening. In models without sensors (older or budget), an alarm may only appear when the temperature rises significantly.
How to check:
- Close the door and listen - if the seal is working, you will hear a characteristic “click” of the magnetic lock.
- Place a sheet of paper between the door and the body. If it falls out or is easily pulled out, the seal needs to be replaced.
- Inspect the rubber for cracks, dirt or deformations. Samsung the seal should be evenly pressed around the entire perimeter.
If the problem is in the seal, you can try restore it:
- 🧼 Wipe the elastic with warm water and soap, then dry. Sometimes it is enough to remove fat or sticky parts. leftovers.
- 🔥 Heat the seal with a hairdryer (temperature up to 50°C) - this will restore its elasticity.
- 🔧 Tighten the door hinges if they are sagging (relevant for models older than 3 years).
Attention! If the seal is torn or lost form, it must be replaced. For refrigerators Samsung original rubber bands can be ordered according to the article number specified in the instructions (for example, DA97-08006A for the series RB37J5**).
Close the door tightly and wait 5 minutes|Check the seal for contamination|Adjust the hinges if the door is sagging|Replace the seal if there is visible damage-->
Temperature failures: why the refrigerator does not cool
If the signal «Alarm ON» is accompanied by an increase in temperature in the chambers (for example, in the refrigerator +12°C instead +5°C), the reason lies in malfunction of the cooling system. In refrigerators Samsung this may be due to:
- ❄️ Stuck fan (relevant for models with
No Frost—for example, RS62R5001SA). - 🌡️ Failure of the thermostat or temperature sensor (error codes
1E,5E). - ⚙️ Leakage freon - in this case the compressor works without stopping, but there is no cooling.
- ⚡ Failure of the control board (may manifest itself as chaotic turning on/off of the motor).
For diagnostics, follow these steps:
- Check Is the fan working? in the freezer camera. In models Samsung No Frost it should start when the door is opened. If not, it may have iced up or the motor has burned out.
- Listen to the compressor:
- 🔊 Does not turn on at all —the problem is in the thermostat, relay or board.
- 🔊 Works continuously —freon leak or capillary tube clogged.
- 🔊 Clicks and turns off —start protection relay is faulty.
⚠️ Attention! If you suspect Freon leakage do not try to repair it yourself. Freon in modern refrigerators (R600a, R134a) is fireproof, but its refilling requires special equipment and a certificate. Contact the service center Samsung or a trusted technician.
In models with Twin Cooling Plus (dual-circuit cooling) «Alarm ON» it may work selectively - for example, only in the freezer compartment. In this case, check:
- 🔌 Operability of a separate compressor for. freezers.
- 🌨️ Fan condition in the upper compartment (it may freeze due to a faulty defrost heater).
Error codes “Alarm ON”: interpretation and solutions
If on the display is displayed error code together with «Alarm ON», this significantly narrows the range of possible problems. Below is a complete table of codes for refrigerators Samsung (valid for models 2018–2026):
| Code | Description | Possible reasons | Recommendations |
|---|---|---|---|
1E |
fridge compartment sensor error | Open circuit, sensor contamination, failure boards | Wipe the sensor, check the contacts. If that doesn’t help, replace the sensor (PS4133837 for many models). |
5E |
Freezer sensor error | Similarly 1Efreezers |
Same as for 1E. In models with No Frost the defrost heater may need to be replaced. |
22E |
Defrosting system failure | The heater, timer or fuse | Defrost the refrigerator for 24 hours. If the error remains, diagnostics by the technician. |
4E |
Problem with the fan | Blade jamming, freezing, burnt out motor | Turn off the power, let it thaw 12 hours. If it doesn’t help, replace the fan. |
8E |
Communication error between modules | Failure of the control board or wiring | Reboot (turn off for 10 minutes). reasons: |
To reset the error after eliminating the cause:
- Disconnect the refrigerator from the network for 5-10 minutes.
- Plug it back in and wait 1-2 hours. If the problem is solved, «Alarm ON» will disappear automatically.
- In some models (for example, RF23HCED) the error can be reset manually: press and hold
Power Cool+Fridge5 seconds.
⚠️ Attention! Error codes may vary depending on the year of manufacture and region. For example, in European models Samsung the code 22E sometimes indicates a problem with the drainage system, not with the drainage system. defrosting. For an accurate diagnosis, check the instructions for your model.
Electrical problems: power surges and overheating
Refrigerators Samsung sensitive to power supply quality. If there are frequent power surges in your network, the control board may produce a false signal «Alarm ON», even if everything is in order with the equipment itself. Typical symptoms:
- ⚡ The refrigerator turns off spontaneously and turns on.
- 🔄 All indicators flash on the display or the settings are lost.
- 🔥 The compressor gets very hot (you can feel it by touching the back wall).
How to check:
- Connect the refrigerator via voltage stabilizer (recommended range: 200–240 V).
- Check the outlet with a multimeter - the voltage should be within 220 V ±10%.
- Inspect the power cord for damage V. models Samsung it often frays at the base.
If the problem is overheating of the compressor:
- 🧊 Let the refrigerator stand for 1-2 hours with the doors open.
- 🧹 Clean the condenser (grid on the back wall) from dust. In models Samsung it often gets clogged, which leads to overheating.
- 🌡️ Check the room temperature - if it is above 30°C, the refrigerator may not cope with cooling.
In refrigerators Samsung with an inverter compressor (series Digital Inverter), overheating is especially dangerous - it can damage the power module. If the “Alarm ON” signal appears and there is a burning smell, immediately disconnect the equipment from the network!
What to do if the refrigerator does not turn on after that. power failure?
If after a power surge the refrigerator Samsung does not respond to the buttons, try:
1. Disconnect from the network for 15 minutes.
2. Press and hold the button Power Freeze 10 seconds (for some models).
3. Check the fuse on the board (disassembly is required).
If this does not help, the control board or compressor is faulty.
Failures of the software and control board
In modern refrigerators Samsung (especially with SmartThings and Wi-Fi) the signal «Alarm ON» can be caused by firmware failure or control board. This manifests itself as follows:
- 📱 The refrigerator does not respond to commands from the remote control or through the application.
- 🔄 The settings are lost after a reboot.
- 🚨 The signal «Alarm ON» appears for no apparent reason and is not reset.
How eliminate:
- Restart the refrigerator:
- Disconnect from the network for 10 minutes.
- If there is a button
Reset(for example, in models Family Hub), press it with a pin.
- Connect the refrigerator to the network via the application SmartThings.
- Go to
Settings → Software update. - Reset the settings to factory settings:
Press the "Power Cool" + "Power Freeze" buttons simultaneously and hold for 8 seconds.
If the failure occurs again, the following malfunctions are possible:
- 🔌 Oxidation of contacts on the board (cleaning with alcohol is required).
- 🔥 Failure of capacitors (swelling, electrolyte leakage).
- 🖥️ Failure of the memory chip (in this case, only replacing the board will help).
⚠️ Attention! Independent repair of the control board can lead to complete failure of the refrigerator. If you are not confident in your skills, contact the service. The cost of a new board for Samsung (for example, BN96-34365A) can reach 15-20% of the price of the refrigerator.
When to call a specialist: signs of serious breakdowns
Not all problems causing «Alarm ON»can be fixed on your own. Contact a specialist if:
- 🔧 Refrigerator does not cool despite all attempts. reboot.
- ❄️ On the back wall or in the freezer ice forms (for models
No Frost). - ⚡ The compressor hums, but does not start or works intermittently.
- 💧 Under the refrigerator appears puddle (freon leak or drainage blockage).
- 🔥 Equipment smells burning or plastic.
Average prices for repairs (in Moscow and regions for 2026):
| Type of breakdown | Repair cost (₽) | Cost of spare parts (₽) |
|---|---|---|
| Replacement of temperature sensor | 1 500–2 500 | 800–1 500 |
| Repair of control board | 3 000–6 000 | 4,000–10,000 (if replacement) |
| Freon charging | 3 500–5 000 | 1,000–2,000 (refrigerant + work) |
| Replacing the compressor | 5 000–8 000 | 8 000–15 000 |
When selected technicians:
- 🔍 Check reviews and experience with refrigerators Samsung.
- 📄 Request a guarantee for work (minimum 6 months).
- 💰 Compare prices: too cheap repairs may mean using non-original spare parts.
⚠️ Attention! If the refrigerator is guarantee do not disassemble it yourself - this will void the warranty. Contact an authorized service center Samsung by phone 8-800-555-55-55 (toll-free).
FAQ: answers to frequently asked questions
Is it possible to turn off the “Alarm ON” sound signal if it interferes?
Yes, in most models Samsung the sound can be turned off:
- Press and hold the button
Alarm Off(if available) for 3 seconds. - In models with a display, go to
Settings → Sound → Off. - In refrigerators without a shutdown button, you will have to eliminate the cause signal.
Attention! Murning the sound does not solve the problem - the refrigerator continues to operate in emergency mode.
Why does “Alarm ON” appear at night?
This is due to:
- 🌡️ Increasing temperature indoors (for example, if the kitchen is not ventilated).
- ⚡ Power surges in the network (at night the load on the network is lower, which can provoke failures).
- 🚪 Door not closed tightly (if the seal is worn out, cold air “leaks out” faster).
Check the temperature in the kitchen and how tightly the door is closed. If the problem repeats, install a voltage stabilizer.
What to do if “Alarm ON” lights up after defrosting?
This is normal if:
- The refrigerator has not yet reached the desired temperature (wait 2-4 hours).
- There is moisture left in the chambers (wipe the walls with a dry cloth).
If the signal does not disappear after 6 hours:
- Check if the fan is working (in models
No Frost). - Make sure the drainage hole is not clogged (clean with a wire).
Can "Alarm ON" appear due to the refrigerator being overloaded with food?
Yes, if:
- 🥩 You put in a lot of warm food (for example, after purchasing).
- 🧊 The freezer is packed to capacity (air circulation is disrupted).
Solution:
- Unload the refrigerator by 30-40%.
- Turn on the mode
Power Freezefor 2-3 hours. - Do not load warm foods (let them cool to room temperature).
How to reset “Alarm ON” on a Samsung refrigerator without disconnecting from the network?
Reset methods (depending on the model):
- Press and hold
Fridge+Power Cool5 seconds. - In refrigerators with touch hold the display
Ice Type8 seconds. - For models Family Hub: go to
Settings → Diagnostics → Reset errors.
If all else fails, disconnecting from the network for 10 minutes is the most a reliable way.