The situation is familiar to many: you open the refrigerator, and there is room temperature, while the freezer freezes food properly. Why does this happen? There may be several reasons, and not all of them require calling a technician. In most cases, the problem can be diagnosed and fixed independently, saving on repairs.
In this article we will look at 7 key reasonswhy the refrigerator stops cooling, and why the freezer continues to work. You will learn how to check the thermostat, sensors, fan and other components, as well as what precautions you need to take to avoid worsening the breakdown. If you are not an expert in repairing equipment, don’t worry - we will give step-by-step instructions with photographs and diagrams.
Before you start repairing, make sure that the problem is not temporary. Sometimes the refrigerator may "rest" after the compressor has been running for a long time, especially in hot weather. Wait 1-2 hours: if the temperature does not return to normal, proceed with diagnostics.
1. Malfunction of the refrigerator compartment thermostat
Thermostat (or thermostat) is a device that controls the temperature in the refrigerator compartment and sends a signal to the compressor to turn on/off. If it fails, the compressor can only work on the freezer, ignoring the main compartment.
How to check the thermostat:
- 🔧 Unplug the refrigerator unplug and remove all food from the refrigerator compartment.
- 🔍 Find the thermostat - it is usually located inside the chamber, under a plastic panel or next to the lamp.
- 📊 Check it with a multimeter: in the "off" position. the resistance should be infinite, and when the knob is turned to maximum, it should be close to zero.
If the thermostat does not pass the test, it must be replaced. The cost of a new part for popular models (Atlant, Indesit, Samsung) is from 800 to 2500 rubles. Replacement takes 15-20 minutes and does not require special tools.
2. Capillary tube clogged or freon leak
If the freezer is working but the refrigerator is not, the problem may lie in refrigerant circulation system. The capillary tube is a thin channel through which freon enters the evaporator. Over time, it can become clogged due to moisture, oil or small particles.
Signs of a clog or leak:
- ❄️ The freezer freezes too much (formation of a “snow cap”).
- 🌡️ The refrigerator compartment does not cool even at maximum settings.
- 🔊 The compressor runs without stopping or turns on for a short time.
To fix the problem, you will need cleaning the system or refilling freon. This is a complex procedure that is best left to a specialist. Self-repair is fraught with damage to the circuit and refrigerant leakage.
What happens if you ignore a freon leak?
With a prolonged leak, the compressor wears out, which leads to its overheating and breakdown. The average cost of replacing a compressor is from 5,000 to 12,000 rubles, depending on the refrigerator model.
3. No Frost fan failure
In refrigerators with a system No Frost the fan is responsible for circulating cold air. If it breaks, the freezer continues to freeze (since the evaporator is nearby), and the refrigerator compartment remains warm.
How to diagnose a broken fan:
- Open the freezer and listen: if the fan is working, you will hear a slight buzzing.
- Check whether ice or foreign objects are blocking the blades.
- If the fan does not spin, try turning it by hand - it may be jammed.
A common cause of breakdown is icing of the blades due to a faulty defrost heater. In this case, you need to defrost the refrigerator for 12-24 hours and check the operation of the system after turning it on.
Listen to the operation of the fan|Check the blades for ice|Rotate the fan manually|Inspect the wiring for damage-->
4. Temperature sensor malfunction
Modern refrigerators are equipped temperature sensorsthat transmit data to the control board. If the refrigeration chamber sensor fails, the control unit “does not see” the problems and does not turn on the cooling.
Symptoms of sensor malfunction:
- 📉 The temperature in the refrigeration chamber does not correspond to the set values.
- 🔄 The compressor turns on randomly or does not turn off for a long time.
- 🚨 An error may appear on the display (for example,
E1orF2for LG and Samsung).
The sensor is checked with a multimeter. At room temperature, its resistance should be within the limits 4-6 kOhm (exact values are indicated in the technical documentation of the model). If the indicators do not correspond to the norm, the sensor must be replaced.
5. Problems with the control board
The control board is the “brain” of the refrigerator. It processes signals from sensors and controls the operation of the compressor, fans and heaters. If the board fails, the refrigerator compartment may stop cooling, mentre que the freezer will continue to work.
Symptoms of a board failure:
- 🔄 Refrigerator turns on/off spontaneously.
- 📛 Errors flash on the display or incorrect symbols are displayed.
- 🔌 After a power outage, the refrigerator does not turn on.
Repairing the control board is a task for a professional. In most cases, it is flashed or replaced with a new one. — from 3000 to 8000 rubles, depending on the model.
6. Clogged drainage hole
If the drain hole in the refrigerator compartment becomes clogged, the condensate does not go to the drain pan. This leads to icing of the evaporator. and impaired air circulation. As a result, the temperature in the chamber rises, but the freezer continues to operate normally.
How. clean the drainage:
- Disconnect the refrigerator from the mains.
- Find the drainage hole (usually it is located on the back wall of the chamber).
- Use a special brush or tube for cleaning. You can rinse the hole with warm water and soda.
If the clog is severe, you may need to disassemble the rear panel of the refrigerator compartment. In this case, it is better to contact a specialist so as not to damage the system.
7. Incorrect settings or external factors
Sometimes the problem lies not in the breakdown, but in the incorrect one. operation:
- 🔥 The refrigerator is located next to a heat source (battery, stove, direct sunlight).
- 🚪 The refrigerator door does not close tightly due to a worn seal.
- ⚙️ The cooling mode is set to minimum or activated "Vacation".
Check: The rubber seal on the door - if it is torn or deformed, the refrigerator will not maintain the desired temperature.
Temperature settings - the optimal value for the refrigerator compartment: +4…+6°C.
| Reason | Symptoms | Method of elimination | Repair cost (rub.) |
|---|---|---|---|
| Faulty thermostat | The compressor does not turn on in the refrigerator compartment | Replacing the thermostat | 800–2500 |
| Clogged capillary tube | The freezer is freezing, the refrigerator is warm | Cleaning or replacing the tube | 3000–6000 |
| Fan failure No Frost | It’s cold in the freezer, there is no air circulation in the refrigerator | Replacing the fan or defrost heater | 1500–4000 |
| Faulty temperature sensor | Incorrect temperature readings, errors on the display | Replacement sensor | 1000–2500 |
What to do if nothing helps?
If you have tried all the methods, but the refrigerator still does not cool, there may be a more serious problem:
- 🔧 Failure compressor (requires replacement).
- 🧊 Freon leak in the refrigeration circuit.
- 🔌 Power supply problems (unstable voltage, damaged cable).
In these cases professional repair is required. Attempts to fix the breakdown yourself can lead to the final failure of the refrigerator.
⚠️ Attention: If your refrigerator is under warranty, do not disassemble it yourself. This will void the manufacturer's warranty. Contact the service center.
FAQ: Frequently asked questions about a non-working refrigerator
Is it possible to use the refrigerator if the freezer is working but the main chamber is not?
For a short time - yes, but not recommended for a long time. If the refrigerator compartment does not cool, the food in it will spoil and the compressor will wear out, which can lead to its failure. It is better to eliminate the cause as soon as possible.
How much does it cost to diagnose a refrigerator at home?
The cost of diagnostics in Moscow and the regions varies from 500 to 1500 rubles. In some services, diagnostics are free if you agree to repairs.
How often do you need to defrost a No Frost refrigerator?
Refrigerators with a system No Frost do not require regular defrosting, but It is recommended to turn them off 1-2 times a year for washing and preventative cleaning of the drainage.
Can the refrigerator not cool due to power surges?
Yes, unstable voltage can damage the control board or compressor. If your network has frequent fluctuations, use a voltage stabilizer.
What to do if after repair the refrigerator does not cool again?
Return to the service center where the repair was carried out - the work should have a warranty (usually from 3 to 12 months). If there is no warranty, contact another service for re-diagnosis.