The refrigerator does not freeze after defrosting - what to do? 7 reasons and step-by-step solutions

You spent an hour defrosting the refrigerator, washed all the shelves, turned it back on - and after a couple of hours you discovered that the freezer is barely cooling, and the main compartment is warmer than it should be. Is the situation familiar? There may be more than a dozen reasons why a refrigerator does not freeze after defrostingwould fail, but most of them can be resolved without calling a technician. In this article we will analyze real cases from the practice of service centers, explain how to diagnose the problem yourself, and give checklists of actions for each of the reasons.

Important: not all faults are visible immediately. For example, if the refrigerator does not freeze after defrosting, but the light inside is on and the fan is working, this almost always indicates a freon leak or a clogged capillary tube. And if the compressor does not start at all, the thermostat or relay may be to blame. We will help you distinguish “minor” breakdowns from serious ones - and save on unnecessary repairs.

1. The refrigerator is not turned on correctly after defrosting

The most banal, but also the most common reason. Many users forget that after defrosting the refrigerator needs to be turned on according to a certain algorithm - this is especially true for models with No Frost and electronic control. Here are typical errors:

• 🔌 Turning on too quickly - if you connected the refrigerator to the network immediately after washing, the moisture inside could freeze on the evaporator and block air circulation.
• ❄️ Ice has not been removed from the drainage hole - even a little icy the plug may cause a malfunction in the defrosting system.
• ⚙️ Not reset settings —in models Samsung or LG after turning off the power, the cooling mode is sometimes lost.

What to do:

1. Unplug the refrigerator for 10-15 minutes, then turn it on again.
2. Check if the power indicator is on (if any).
3. Make sure the door is tightly closed - sometimes the seal sticks after washing to the case.

If after these steps the refrigerator started working, the problem was an incorrect start. If not, read on.

2. The capillary tube is clogged or freon is leaking

This problem most often occurs in refrigerators older than 5 years, but can also happen in new models if defrosting was carried out with violations (for example, sharp objects were used to remove ice). Symptoms:

• 🔊 The compressor works without stopping, but does not freeze.
• ❄️ The freezer is warmer than in the main compartment.
• 💧 Appears on the back wall of the refrigerator condensation.

Causes:

• 🛠️ Mechanical damage pipes when clearing ice with a knife or fork.
• 🔥 Overheating compressor due to prolonged operation without shutting down.
• 🧊 Moisture ingress into the system in case of improper defrosting (for example, if the refrigerator was washed with hot water).

How to check the freon leak yourself?

If there are oily stains on the back wall of the refrigerator (usually at the bottom), this is a sign of a leak. You can also touch the condenser (grid on the back): if it is cold and the compressor is running, there is little or no freon in the system.

Solution:

Fix the leak yourself or clean the capillary tube impossible —special equipment is required for refilling freon and soldering the tubes. Average cost of repair at a service center:

⚠️ Attention: If the refrigerator is under warranty, do not try to repair it yourself - this will void the warranty. Contact an authorized service center brand.

3. Broken thermostat or temperature sensor

The thermostat (or thermostat) is the “brain” of the refrigerator, which sends a signal to the compressor about the need to turn it on/off. If it breaks, the compressor either does not start at all, or runs without stopping, but does not freeze. How to recognize a breakdown:

• 🔄 The refrigerator does not turn off, but the temperature does not drop.
• 🌡️ In models with a display, it shows the wrong temperature (for example, -18°C, although in the freezer +5°C).
• 🔇 The compressor does not turn on at all (no characteristic hum).

Causes of failure:

• 💦 Moisture getting on the thermostat contacts during washing.
• ⚡ Voltage surge in network (especially important for houses with old wiring).
• 🕒 Natural wear and tear (the average service life of a thermostat is 7–10 years).

How to check the thermostat:

1. Disconnect the refrigerator from the network.
2. Remove the protective cover (usually it located inside the refrigerator compartment or on the top panel).
3. Find the thermostat - this is a small box with a tube going to the evaporator.
4. Ring the contacts with a multimeter in resistance testing mode. At room temperature, the resistance should be 0 Ohm, when cooling (for example, if you blow on the sensor from a can of compressed air) - infinity.

If the thermostat is faulty, it needs to be replaced. The cost of a new part is from 1,200 to 3,000 rubles, depending on the model. Replacement takes 30–60 minutes.

4. Failure of the compressor or start-up relay

The compressor is the “heart” of the refrigerator, which pumps freon through the system. If it is broken, the refrigerator will not freeze at allbut the light inside can be on and the display can show the temperature. Signs of a compressor breakdown:

• 🔇 The refrigerator does not hum (there is no sound of a running motor).
• 🔥 The compressor housing (the black “tank” at the bottom back) gets very hot.
• 💥 When turned on, clicks are heard, but the motor does not start.

A common reason is the start-protection relay has burned out, which is responsible for starting the compressor. This can happen due to:

• ⚡ Power surge (for example, if the refrigerator was turned on during a thunderstorm).
• 🔌 Unstable power supply (if the socket is loose or the wires are damaged).
• 🕒 Natural wear (the relay is designed for ~100,000 starts).

How to check:

1. Disconnect the refrigerator from the mains.
2. Remove the protective cover from the compressor (it is secured with latches or screws).
3. The relay is a small box attached to the compressor. Carefully remove it and inspect for blackened contacts or melted plastic.
4. Test the relay with a multimeter. If the resistance between the contacts infinity the relay is burned out.

If the relay is burned out, you can replace it yourself (cost details - 500–1,500 rubles). If the compressor itself is broken, professional repair or replacement will be required (from 8,000 rubles).

⚠️ Attention: Never turn on a refrigerator with a faulty compressor “for a short time” - this can lead to data-i="163">windings and complete breakdown of the motor. interturn short circuit windings and complete breakdown of the motor.

5. Problems with the No Frost system

Refrigerators with the system No Frost (or Frost Free) defrost automatically, but even they require periodic maintenance. If such a refrigerator does not freeze after defrosting, the reason may be:

• 🌀 Frozen. fan - if ice blocks the blades, cold air does not circulate.
• 🔥 Burnt defrost heater —it is responsible for removing ice from the evaporator.
• 🧊 Faulty defrost timer —if it freezes, the system does not switch to cooling mode.

How to diagnose:

1. Open the freezer and listen - if the fan does not make noise, it means it is blocked by ice or broken.
2. Check if cold air is blowing from the vents in the main compartment.
3. If the refrigerator is equipped display, look at the error code (for example, in Samsung error 22E indicates a problem with the fan).

Solution:

• 🧊 If the fan is blocked by ice, defrost the refrigerator again, this time at least 12 hours.
• 🔧 If the fan burns out, replace it (the cost of the part is 1,500–3,000 rubles).
• ⏱️ If the defrosting timer is faulty, it also needs to be replaced (price — 1,000–2,500 rubles).

6. Malfunction of the electronic module. control

In modern refrigerators (for example, Bosch, Liebherr, Electrolux) electronic control unitis responsible for the operation of all systems. If it burns out or fails, the refrigerator can:

• 📛 Show errors on the display (for example, E1, F2).
• 🔄 Turn on and turn off immediately.
• 🌡️ Do not respond to temperature changes.

Causes of failure:

• ⚡ Power surge (the most common cause).
• 💧 Moisture getting on the board during washing.
• 🕒 Natural wear and tear (especially in refrigerators older than 10 years).

Diagnostics:

If the refrigerator is equipped with a display, write down the error code and check its meaning in the instructions. For example:

• E1 (Atlant) - problem with the temperature sensor.
• F2 (Samsung) - fan malfunction.
• H1 (LG) - compressor overheating.

Solution:

Repair the electronic module not recommended —this requires special skills and equipment. Average cost of repair:

• Diagnostics - 1,000–1,500 rubles.
• Board repair (replacement of elements) — 3,000–6,000 rubles.
• Replacement of the board — 7,000–12,000 rubles.

⚠️ Attention: Parts for electronic modules are often available unique for each modelBefore. repair, check with the service center to see if there are spare parts for your refrigerator.

7. Violation of defrosting rules - what to do to avoid breakdowns

Many breakdowns occur. due to improper defrosting. Here's what cannot be done in no case:

• 🔥 Use a hairdryer or hot water to speed up the process - this can damage the seal and plastic details.
• 🔪 Crack off the ice with a knife or fork - there is a risk of puncturing the evaporator or freon tubes.
• 🧼 Wash the refrigerator with aggressive detergents (for example, with chlorine) - they corrode the rubber seal.
• ⚡ Turn on the refrigerator immediately after washing you need to let it dry at least 1 hour.

Correct algorithm defrosting:

1. Unplug the refrigerator.
2. Take out all the food and shelves.
3. Place a tray to collect water (if the model does not have an automatic drain).
4. Open the doors and wait until the ice will melt naturally.
5. Rinse the internal surfaces warm soda solution (1 tablespoon per 1 liter of water).
6. Wipe everything dry surface.
7. Leave the refrigerator open for 1–2 hours for ventilation.
8. Plug in and set the desired temperature.

FAQ: Frequently asked questions about a refrigerator that does not freeze after defrosting

❓ The refrigerator hums, but does not freeze - what is the reason?

Most likely, the problem is freon leakage or clogged capillary tube. The compressor works, but there is no cooling because the refrigerant is not circulating. Also check if the fan is blocked by ice (in models No Frost).

❓ Is it possible to refill freon yourself?

No. To refill freon you need special equipment (a vacuum pump, pressure gauges, a refrigerant bottle) and skills. to compressor breakdown or explosion (freon under pressure!). Contact the service center.

❓ How long should the refrigerator work after defrosting to gain temperature?

Depending on the model and volume:

• Small refrigerators (up to 150 l) - 2-4 hours.
• Medium (150–300 l) — 4–6 hours.
• Large (from 300 l) or Side-by-Side — 6–12 hours.

If after 12 hours the temperature has not dropped to normal, then there is a malfunction.

❓ Why did an unpleasant smell appear in the refrigerator after defrosting?

Probable causes:

• Mold or bacteria in the drainage hole (clean it with a cotton swab and soda).
• Food residues in hard-to-reach places (check under rubber seal).
• Damaged seal (if the rubber is crumbled, it needs to be replaced).

To remove the smell, rinse the refrigerator with a solution of vinegar (1:1 with water) and leave for 1 hour with the door open.

❓ The refrigerator No Frost does not freeze, but the fan works - what to do?

Probably the problem is defrost heater or defrost sensor. The fan blows, but the air does not cool, because the evaporator is covered with ice. Try:

1. Defrost the refrigerator for 24 hours.
2. If that doesn’t help, call a technician to replace the heater (cost - 2,000–4,000 rubles).