Why only the freezer works in the refrigerator: 7 reasons and 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 is a common malfunction faced by owners of equipment of different brands - from budget Indesit and Atlant to premium Samsung and Liebherr. In 80% of cases, the problem is solved without replacing the compressor, but it is important to correctly diagnose the cause.

In this article we will look at why the refrigerator stopped cooling, mientras que la the freezer is functioning normally. We will analyze typical failures - from banal icing of a capillary tube to failure of an electronic module. You will also find out what manipulations you can carry out yourself, and when you need to call a specialist with equipment for refilling freon or soldering circuits.

Let us immediately note: if your refrigerator has a system No Frost, the troubleshooting algorithm will differ from models with drip defrosting. We will talk about this in detail in the appropriate section.

1. A clogged capillary tube is the most common cause

In 60% of cases when the refrigerator does not cool, but the freezer works, clogging in the capillary pipelineis to blame. This thin copper tube connects the condenser and evaporator, regulating the flow of freon. Over time, particles of oil, moisture or refrigerant decomposition products accumulate in it, forming a blockage.

How does this manifest itself?

• 🔹 The freezer freezes normally or even too much.
• 🔹 The main compartment does not cool or the temperature is barely below room temperature.
• 🔹 The compressor works without stopping or with short pauses.
• 🔹 There may be an ice “coat” on the back wall of the refrigerator (bottom).

You can diagnose a blockage by indirect signs: if the condenser (grid at the back) refrigerator) is uniformly hot, and the tube in front of the evaporator of the refrigerator compartment is icy - this confirms the problem. The blockage can be eliminated by blowing the tube with nitrogen or replacing the capillary, which requires special equipment.

2. Freon leak: how to recognize and what to do

Freon (refrigerant) circulates in a closed circuit, but over time, microcracks may appear at soldering points or due to corrosion of aluminum tubes. If small leak, its consequences will appear first in the refrigerator compartment - the freezer will still work, since it requires less refrigerant to maintain a low temperature.

Signs of a freon leak:

• 🛠️ The compressor works almost non-stop, but the refrigerator does not cool.
• 🛠️ Oil stains are visible on the back wall of the refrigerator (freon leaves along with the oil).
• 🛠️ The circuit tubes do not heat up evenly - somewhere cold, somewhere warm.
• 🛠️ If there is a leak in the freezer, rust may appear on its walls.

It is impossible to fix the leak on your own - you need pressure testing of the system with nitrogensoldering the damaged area and refilling with new freon. The average cost of repairs (depending on the model) is from 3,500 to 8,000 rubles. In refrigerators with isobutane (R600a), leaks occur less frequently, but they are more difficult to detect due to the lack of odor.

What is the danger of leaking freon R600a?

Refrigerant R600a (isobutane) is explosive at concentrations in air of more than 1.3%. However, in household refrigerators its quantity is minimal (50–150 g), so there is virtually no risk of explosion. The main danger is inhaling fumes in a poorly ventilated area, which can cause dizziness. If you suspect a leak, ventilate the kitchen and unplug the refrigerator.

3. Failure of the thermostat (thermostat) of the refrigeration chamber

The thermostat is a sensor that sends a signal to the compressor to turn it on/off. If it fails, the refrigerator compartment stops cooling, but the freezer continues to work (since it has a separate sensor or circuit). In two-compressor models (Samsung RL-44, LG GR-B207), failure of the thermostat of one chamber does not affect the other.

How to check the thermostat?

1. Disconnect the refrigerator from the network.
2. Remove the protective casing from the thermostat (usually located inside the refrigerator compartment or on the top panel).
3. Close the two wires going to the thermostat to each other (use a screwdriver with an insulated handle!).
4. If after turning on the refrigerator works, the thermostat is faulty and requires replacement.

The cost of a new thermostat is from 800 to 2,500 rubles In models with electronic control (Bosch KGE39XW25R, Siemens KG39NXI35), instead of a mechanical thermostat, air sensoris used, which is checked with a multimeter for resistance.

Mechanical (knob)|Electronic (buttons/display)|Not I know|Other-->

4. Problems with the fan in No Frost systems

In refrigerators with a system No Frost (without defrosting), the fan is responsible for circulating cold air. If it stops working, the freezer compartment continues to cool due to direct contact of the evaporator with the food, and the refrigerator compartment remains warm. Reasons for fan failure:

• 🌀 Icing of the blades due to a malfunction of the defrost heater.
• 🌀 Bearing wear or jamming of the motor.
• 🌀 Failure of the control board supplying power to the fan.
• 🌀 Mechanical obstacle (for example, a piece of packaging caught in the air duct).

Diagnostics:

1. Turn off the refrigerator and defrost it for 10-12 hours.
2. After turning it on, listen - if the fan does not make noise, it means it is not works.
3. In models with a display (Samsung RB-30 J3200EF), an error may appear FF or CF.

If the fan does not spin due to icing, replacing defrost heater (defroster) will help. or defrost timer. It is not recommended to clean the blades yourself - they can be easily damaged. The average cost of repair is 2,000–4,500 rubles.

5. Malfunction of the control board or electronic module

In modern refrigerators with a display (Liebherr CNesf 4866, Beko GNE114620X), the electronic module is responsible for the distribution of cold. If it fails, a control failure may occur damper, which regulates the flow of cold air between the chambers. As a result, the freezer works, but the refrigerator compartment does not.

Symptoms of board failure:

• 📱 The display shows errors E1, F5, H1 (depending on the model).
• 📱 The refrigerator turns on/off randomly.
• 📱 Does not respond to temperature changes from the control panel.
• 📱 The fan and compressor work asynchronously.

Independent repair of the board is impossible - it is required flashing or replacing microcircuits at a service center. The cost of diagnostics is from 1,500 rubles, board replacement is from 5,000 to 12,000 rubles. In some cases, it helps resetting settings to factory settings (instructions are in the refrigerator's passport).

6. Clogged drainage system or refrigerant leak in the evaporator

If a refrigerator with drip defrosting becomes clogged drainage hole, the condensate does not flow into the tray, but freezes on the back wall, forming an ice crust. This interferes with heat exchange, and the refrigerator compartment stops cooling, while the freezer works normally. Signs of a blockage:

• 💧 Water accumulates under the vegetable drawers.
• 💧 There is a thick layer of ice on the back wall of the refrigerator.
• 💧 Unpleasant odor due to stagnant water.

How to clean the drain:

1. Turn off the refrigerator and take out all the food.
2. Find the drainage hole (usually at the bottom of the back wall).
3. Rinse it with warm water using a syringe or straw.
4. For prevention, use a solution of soda (1 tablespoon per 1 liter of water).

If an ice plug has formed in freezer evaporator, this can lead to freon leakage through microcracks in aluminum tubes. In this case, soldering of the circuit and recharging of the refrigerant will be required.

7. Two-compressor refrigerators: specific breakdowns

In models with two compressors (Atlant MXM-2808-90, Stinol STS 200), each is responsible for its own chamber. If the refrigerator compartment does not cool and the freezer is working, the problem may be:

In two-compressor refrigerators, diagnosis is simpler: if the freezer is working, then the problem is localized in the refrigeration chamber circuit. To check the compressor, you can use a multimeter (winding resistance should be 20–40 Ohms).

Disconnect the refrigerator from the mains|Remove the back cover|Find the refrigerator compartment compressor (usually smaller in size)|Test the windings with a multimeter (200 Ohm mode)|Check the start relay for burnt contacts-->

What to do if the refrigerator stops cooling: step-by-step plan

Before calling a technician, follow these steps:

1. Defrost the refrigerator for 12–24 hours. Sometimes ice jams block air circulation or drainage.
2. Check the voltage at the outlet —it should be 220-230 V. Use another appliance (such as a microwave) to make sure the outlet is working.
3. Inspect the back wall for oil stains (freon leakage) or rust (tube corrosion).
4. Listen to the operation of the compressor:
   • If it does not turn on, the problem is in the thermostat, relay or board.
   • If it works without stopping, the capillary is clogged or there is a freon leak.
   • If it clicks and turns off, the start relay is faulty.

Check the sealing rubber on the refrigerator door. If it is torn or comes off, warm air gets inside and the chamber does not cool.

If after these manipulations the problem remains, write down the symptoms (noise, errors on the display, compressor behavior) and contact a service center. Do not try to solder yourself tubes or refilling freon is dangerous and requires certified equipment.

FAQ: Frequently asked questions about a non-working refrigerator compartment

Is it possible to use a refrigerator if only the freezer is working?

For a short time (1-2 days) it is possible, but not recommended. If the cause is a freon leak or a clogged capillary, the compressor wears out and may burn out. In addition, food in the refrigerator compartment quickly deteriorates at temperatures above +5°C.

Why does the freezer work, but the refrigerator does not after defrosting?

Most likely, the fan did not turn on after defrosting (in models No Frost) or the drainage hole was clogged (in drip refrigerators). The refrigerator thermostat could also be faulty. Check if the fan is spinning and clean the drainage.

How much does it cost to repair if the refrigerator does not cool, but the freezer works?

The cost depends on the reason:

• Replacement of the thermostat - 1,500–3,000 rubles.
• Cleaning the capillary tube — 2,500–4,500 rubles.
• Refilling freon — 3,500–7,000 rubles.
• Repairing the control board — 4,000–10,000 rubles.
• Replacement of the compressor - 5,000–12,000 rubles.

In the regions, prices may differ by 15–20%.

Can the refrigerator not cool due to incorrect installation?

Yes, if:

• The refrigerator is too close to the wall (less than 5 cm), and the condenser is not cooled.
• Direct sunlight hits the side or back wall.
• The room temperature is above +30°C (the compressor cannot cope with the load).

Move the refrigerator to a cooler place and ensure ventilation of the rear wall.

How often do you need to defrost the refrigerator to avoid breakdowns?

Depends on the type of system:

• Drip defrosting - once every 6-12 months.
• No Frost — once every 1–2 years (to clean dust and check the fan).
• Low Frost — once every 8–10 months.

After defrosting, be sure to dry the chambers and clean the drainage hole.