The refrigerator does not freeze: how to find and fix the problem yourself

• Turn off the refrigerator, remove the back cover (bottom).
• Find the compressor - this is a black “barrel” with tubes and relays.
• Connect the multimeter in 200 Ω mode to the relay contacts (after disconnecting the wires). The winding resistance should be 20–50 Ω.

Symptom	Probable cause	Solution
The engine does not start, the relay clicks	The starting relay is faulty or the compressor winding is broken	Replace the relay (cost ~500–1500 ₽) or compressor (from 6000 ₽)
The motor runs continuously, but does not freeze	Freon leak, capillary tube clogged	Call a technician for refueling or cleaning
The motor heats up, turns off after 1-2 minutes	Overload or interturn short circuit in the windings	Replacing the compressor

If the compressor hums but does not start, try tap it with a wooden stick (carefully!) Sometimes this helps to “unwrap” the stuck piston. If the motor still does not. starts - a replacement will be required.

3. Checking the thermostat and the electronic control unit

The thermostat (or thermostat) is responsible for turning the compressor on/off. If it is broken, the motor either does not start or runs without stopping. In modern models (Samsung RB, LG GB-B, Indesit BIAA 13), instead of a mechanical thermostat, an electronic sensor and control board are used.

How to check the thermostat:

1. Disconnect the refrigerator from the network.
2. Remove the temperature control knob (carefully prying it off with a screwdriver).
3. Behind the handle there is a thermostat - disconnect the wires from it (remember their location!).
4. Switch the multimeter to mode continuities and check the thermostat contacts:
   • 🔌 At room temperature, the contacts should be closed (the multimeter beeps).
   • ❄️ Place the thermostat sensor in ice for 5-10 minutes - the contacts should open.

If the contacts do not open/close, the thermostat is faulty, replacing it will cost 1000–3000 ₽ depending on the temperature. models. In refrigerators with electronic control (No Frost), instead of the thermostat, temperature sensor or the board itself may be broken. It is difficult to diagnose this yourself - you will need a tester and a connection diagram.

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

Freon is a refrigerant that circulates through the system and provides cooling. If it leaks, the refrigerator will stop freezing, even if the compressor is running. Symptoms. leaks:

• 🔧 The compressor works without stopping, but the temperature does not drop.
• 🧊 The condenser (grid at the back) is cold, although it should heat up.
• 💨 Oil is visible at the leak site (usually on the tubes or in the evaporator).

Refill freon yourself you cannot this requires special equipment and certification. But you can find the leak locationhave the technician fix the problem faster:

1. Disconnect the refrigerator and defrost it.
2. Inspect places where the tubes are soldered (especially at the bottom where they come out of the compressor).
3. Check evaporator (in the freezer) - if there is rust or oil there, there is most likely a leak there.
4. Apply to suspicious areas soap solution. If bubbles appear, this is the location of the leak.

The cost of refilling freon is from 3000 ₽, plus payment for the work of the technician. If there is a leak in the evaporator, it will have to be replaced (from 5000 ₽).

5. Capillary tube clogged: how to clean the system

The capillary tube is a thin channel through which freon enters the evaporator. If it becomes clogged (for example, due to moisture or oil), the refrigerant does not circulate and the refrigerator stops freezing. Signs of a blockage:

• 🔄 The compressor works, but the condenser (grid at the back) remains cold.
• 🧊 The freezer compartment freezes slightly, and the refrigerator does not cool at all.
• 💦 Ice or ice is visible on the tubes frost in unusual places.

Clean the capillary tube at home almost impossible - this requires hydraulic press experience. But you can try to blow out the system compressed air (for example, from a tire compressor):

1. Turn off the refrigerator and defrost.
2. Pinch capillary tube with pliers at the entrance to evaporator.
3. Connect the compressor to service connection (usually it is closed with a cap on the compressor tube).
4. Apply air under pressure for a short time (1-2 seconds). If the blockage is small, it may break through. 6-8 atm. If the blockage is small, it may break through.

If this does not help, call a technician. Cleaning the system will cost. 2500–4000 ₽, replacement of the capillary tube - up to 6000 ₽.

6. Problems with the No Frost system: fan, heating element, sensors

Refrigerators c No Frost (Samsung RL, LG GA-B, Bosch KGE***) have additional components that can fail:

• 🌀 Fan - if it does not spin, the cold does not enter the chambers.
• 🔥 Defrost heating element - if it burns out, the evaporator freezes and the air does not circulate.
• 📡 Defrost sensor — if it breaks down, the system “thinks” that the frost has melted and does not turn on the heating element.
• 🧊 Frozen drain —water does not drain, ice forms.

How to check the fan:

1. Unplug the refrigerator.
2. Remove the back panel in the freezer (usually it is secured with latches or screws).
3. Try turning the blades the fan by hand - they should rotate easily. If it's jammed, a replacement is needed.
4. Ring the fan winding with a multimeter - there should be resistance. 200–500 Ω.

If the fan is working, but there is no cold, check The defrost heating element:

1. Find the heating element (usually it is located under evaporator).
2. Test it with a multimeter - there should be resistance. 20–40 Ω.
3. If there is a break, replace the heating element (cost ~1500–2500 ₽).

V No Frost can also go wrong defrost timer. Try resetting it by unplugging the refrigerator for 24 hours. If the problem repeats, the timer is faulty.

7. When to call a professional: 5 cases when DIY repairs are dangerous

Not all breakdowns can be repaired yourself. These are the situations when you definitely need the help of a professional:

• ☠️ Freon leak —it is impossible to charge the system without special equipment.
• ⚡ Problems with electrics (short circuit, burnt-out control board).
• 🔧 Replacement of the compressor —requires soldering of tubes and evacuation of the system.
• 🧊 Evaporator repair (for example, in models Atlant or Stinol with a weeping wall).
• 📉 Electronic unit malfunction (in refrigerators Samsung, LG with a display).

The cost of a technician’s visit is from 1500 ₽, diagnostics - usually free of charge (if you agree to the repair). Average prices for work:

If the refrigerator is under warranty - do not disassemble it yourself! This will void the warranty. Contact the brand's service center (Indesit, Atlant, Liebherr etc.).

Frequently asked questions (FAQ)