The freezer freezes, but the refrigerator does not cool - what to do?

Have you opened the refrigerator, and the food in the main compartment is warm, although the freezer is working as usual? This problem is more common than it seems. In 80% of cases, it is not compressor breakdowns that are to blame (as many people think), but simple failures in the refrigerant circulation system or electronics. But there are also more serious reasons - from a clogged capillary tube to a freon leak.

In this article we will look all possible causeswhy the freezer freezes, but the refrigerator does not - from simple (for example, incorrect settings) to complex (breakage of the switch valve). We will also give step-by-step instructionshow to diagnose the problem yourself and what can be fixed without calling a technician. For convenience, we have added a table of symptoms and a checklist for a quick check.

If your refrigerator No Frost or with a drip system, do not skip the section about the fan and evaporator. And owners of two-compressor models (Samsung RL-44, LG GA-B509, Atlant MXM-2808) should immediately go to the block about the switching valve - the root of the problem most often lies there.

1. Check the temperature settings - there may be a problem with the thermostat

Before disassembling the refrigerator, make sure it is set correctly. In 30% of cases, the “breakdown” turns out to be a banal adjustment failure. For example, if the freezer mode is set Super Freeze or Fast Freeze, and in the main compartment the temperature is set to +8°C (instead of the recommended +4...+5°C).

How to check:

• 🔍 Look at display (if available) or mechanical regulator. In models Indesit DF 4180 or Beko CN 335220 the temperature of the refrigerator compartment is controlled by a separate wheel.
• ❄️ Make sure that the mode Vacation is not activated (in some refrigerators it turns off the cooling of the main compartment).
• 📱 In “smart” refrigerators (Samsung Family Hub), check the settings in the mobile application - sometimes synchronization is lost.

If the temperature is set correctly, but the refrigerator still does not cool, proceed to the next step. Exception: if less than 6–8 hours have passed since changing the settings, wait, the system may not yet stabilize.

2. A clogged capillary tube or a freon leak - how to determine

If the freezer is freezing but the refrigerator is not, one of the most common reasons is problems with the refrigerant. This could be:

• 🧊 Clogged capillary tube (more often in older models Atlant or Stinol). Due to dirt or oxidation, freon does not enter the evaporator of the refrigeration chamber.
• 💨 Freon leak in the circuit. Usually occurs in soldering areas or due to corrosion of tubes (relevant for refrigerators older than 10 years).

How to diagnose:

1. Turn off the refrigerator and defrost it for 12-24 hours.
2. After turning it on listen: if the compressor works without stopping, but the refrigerator does not cool, this is a sign clogging or leakage.
3. Touch the condenser (grid at the back): if it is cold only at the bottom and warm at the top, freon is not circulating completely.

⚠️ Attention: You cannot clean the capillary tube or refill freon yourself without equipment! This requires a vacuum pump and pressure gauges. Contact a technician.

3. Fan failure in the No Frost system - how to check

In refrigerators No Frost (Samsung RB-30 J3200**, LG GA-B489 YDQZ) the fan is responsible for air circulation. If it breaks, the freezer will freeze (since the evaporator is located there), but the refrigerator compartment will not, because cold air does not flow.

Signs of a fan failure:

• 🔇 In the freezer no noise from a working fan (normally it should be slightly hum).
• 🧊 On the back wall of the freezer a lot of ice - this means that the air does not circulate and moisture freezes.
• 💡 The light in the refrigerator is on, but there is no cooling.

How to check:

1. Unplug the refrigerator.
2. Remove all food from the freezer and remove the back panel (usually it is secured with latches or screws).
3. Try turning fan blades by hand. If they do not rotate or rotate with difficulty, the problem is in the motor or bearings.
4. Check whether the blades are frozen to the ice (this is important if the refrigerator has not been defrosted for a long time).

Unplug the refrigerator|Remove the back panel of the freezer|Check the rotation of the blades manually|Inspect for ice and damage

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If the fan does not work, it needs to be replaced. In some models (Whirlpool ARC 4200) you can only buy the entire module, in others (Bosch KGE39XW25R) you can buy a separate motor. Average cost of a spare part: 1,500–3,000 ₽.

4. The thermostat or temperature sensor is faulty

The thermostat (or electronic sensor) is responsible for turning the compressor on/off. If it breaks, the compressor may either not turn on at allor work without stopping (which leads to freezing of the freezer and lack of cold in the main compartment).

How to understand that the thermostat is to blame:

• 📉 Temperature in the refrigerator does not match the settings (for example, it is set to +4°C, but actually +12°C).
• 🔄 Compressor turns on rarely or does not turn off at all.
• 🔧 In mechanical thermostats (Atlant MHM-1708), when you turn the knob, you do not hear a click (this is a sign of breakdown).

Diagnostics:

1. Find the thermostat - in older models it is usually hidden under the adjustment knob, in new ones (Liebherr CNef 4315) it may be inside the chamber behind a plastic panel.
2. Remove the terminals and check the resistance with a multimeter. At room temperature it should be 0 Ohm (closed), when cooled it should open.
3. If the thermostat is electronic, check the power supply to it (should be 5V or 12V depending on the model).

⚠️ Attention: In refrigerators with electronic control (Samsung RL-33**) temperature sensors often fail after power surges. If replacing the thermostat does not help, check the control board.

How to check the control board without special tools

If the refrigerator does not respond to temperature settings, but the display works, try the following:

1. Unplug the refrigerator for 1 minute, then turn it on again.

2. If the problem remains after a reboot, one of the board elements (most often a relay or resistor) has probably burned out.

3. In models Indesit i Ariston the board often suffers from condensation - inspect it for oxidation or burnt tracks.

5. Problems with the switching valve (in two-compressor refrigerators)

Two-compressor refrigerators (LG GA-B509, Samsung RT-43K6030) have separate circuits for the freezer and refrigerator compartment. Responsible for the distribution of refrigerant magnetic valve. If it jams, freon will only flow into the freezer, and the refrigerator will remain warm.

Signs of a malfunctioning valve:

• 🔀 The freezer works fine, the refrigerator does not.
• 🔊 When switching modes, you can hear click, but there is no cooling in the main compartment.
• 📊 An error may appear on the display (for example, E1 or F5 in models Samsung).

How to check:

1. Find the valve - it is usually located next to the compressor and has 2-3 tubes.
2. With the refrigerator running, touch the tubes:
   • If one tube is cold, and the other is warm - the valve does not switch.
   • If both tubes are the same temperature, the problem is different.

Check the voltage on the valve coil (should be 12V or 24V when switching).

If the valve is faulty, it needs to be replaced. The cost of the spare part: from 2,000 to 5,000 rubles, depending on the model. In some cases, simple cleaning of the contacts helps if the problem is oxidation.

6. Freezing of the evaporator or leakage in the refrigeration chamber circuit

In refrigerators with drip system (Biryusa 140, Pozytron KR-105) the evaporator is located on the rear wall of the main compartment. If it freezes, the cold stops entering the chamber. It is also possible microleakage of freon precisely in the refrigerator circuit (while the freezer works normally).

Causes of evaporator freezing:

• 🚫 Clogged drainage hole —water does not drain, but freezes on the evaporator.
• 🔧 Faulty defrost heater (in models with semi-automatic defrosting).
• 💧 Increased humidity in the chamber (for example, if you often open the door or store liquid products without lids).

How to eliminate:

1. Defrost the refrigerator for 24 hour.
2. Clean the drainage hole (you can use wire or a syringe with warm water).
3. Check the operation of the defrost heater (if any) - it should heat up when the compressor is turned off.

⚠️ Attention: If, after defrosting, the evaporator freezes again within 1-2 days, this is a sign leaks. freon or a breakdown of the thermostat. In this case, professional diagnostics are needed.

7. The refrigerator door does not close tightly - check the seal

If the sealing rubber on the door is worn out or dirty, the freezer may work normally, but the refrigerator does not, because the compressor does not have time to cool both compartments.

How to check for leaks:

• 📄 Take sheet of paper and clamp it between the door and the body.
• If the sheet easily pulled out — the seal does not fit.
• 🔦 Inspect the rubber band for cracks, deformations or dirt.

How to fix:

1. Clean sealant warm water and soap (do not use abrasives!).
2. If the rubber is deformed, try heat it with a hairdryer (temperature 50–60°C) and reshape.
3. If the seal is torn, replace it. Cost of a new one: 1,000–2,500 rubles.

FAQ: Frequently asked questions about a non-working refrigerator

The freezer is working, but the refrigerator is not - what to do first?

First check:

1. Temperature settings (perhaps lost after a power surge).
2. Door tightness (seal, hinges).
3. Fan operation (in models No Frost).

If everything is in order, defrost the refrigerator for 12-24 hours and see if the situation changes.

Is it possible to charge freon yourself if the refrigerator does not cools?

No. To refill freon you need:

• Special equipment (vacuum pump, pressure gauges).
• Knowledge of the type of refrigerant (in old models - R-12, in new ones - R-134a or R-600a).
• Ability to solder with copper-phosphorus solder (in case of leakage).

Errors during refueling can lead to compressor breakdown or explosion (if freon is mixed up).

How much does repair cost if the freezer is freezing but the refrigerator is not?

The cost depends on the cause:

Breakage	Repair cost (₽)
Replacement of thermostat/sensor	1 500–3 000
Repair of No Frost fan	2 000–4 500
Replacement of switching valve	3 000–6 000
Repairing leaks + refilling freon	5 000–12 000

Prices are indicated without the cost of spare parts and may vary depending on the region and model of the refrigerator.

Samsung refrigerator No Frost - the freezer works, but the refrigerator does not?

In 90% of cases. the problem is:

1. Fan (does not spin due to icing or motor failure).
2. Sensor defrosting (in models Samsung RL-** it often fails).
3. Switching valve (if the model is two-compressor).

Try to defrost the refrigerator for a day. If that doesn’t help, check the fan and sensors with a multimeter.

After defrosting, the refrigerator does not cool, but the freezer works. What. what to do?

Probable reasons:

• In models No Frost — fan is frozen (you need to defrost again, but longer - 24–36 hours).
• In drip refrigerators — drain hole is clogged (clean it).
• If the compressor runs without stopping - freon leak or clogged capillary tube.

If defrosting does not help, call a technician for diagnostics.