Why the freezer does not work in a two-chamber refrigerator: we analyze 12 reasons and methods elimination

Have you opened the freezer, and instead of the usual cold - room temperature, melted food and puddles on the shelves? A freezer problem in a two-compartment refrigerator can occur suddenly, but there is almost always a specific reason for it. In this article we will analyze all possible malfunctions from a banal settings failure to serious compressor breakdowns, and also give step-by-step instructionshow to diagnose and fix the problem yourself.

Double-chamber refrigerators (with an upper or lower freezer) are more complex than single-chamber ones: they have separate cooling systems for the refrigerator and freezer compartments, but connected by a common circuit. If the freezer has stopped freezing, but the refrigerator compartment is working normally (or vice versa), this is already a hint where to look for the root of the problem. We will not advise “calling a specialist” at every step: 80% of breakdowns can be fixed without special tools if you know the algorithm of actions.

Important: if the freezer not only freezes poorly, but has completely defrosted in a few hours - do not try to immediately defrost the refrigerator “just in case”. This may make the problem worse (for example, if there is a freon leak). First, determine the reason using our checklist.

1. Let's check the obvious: power supply, settings and external factors

Before disassembling the refrigerator, eliminate the “human factor”. About 30% of calls to service centers are associated with banal operating errors, and not breakdowns.

Start by inspecting the outlet and power cord:

• 🔌 Check whether the refrigerator is plugged in. The cord may have fallen out of the outlet (especially if you have active pets).
• ⚡ Is the socket working?? Connect another device to it (for example, a phone charger) - if it doesn’t work, the problem is in the wiring. Is the socket working? Sometimes refrigerators turn off during power surges.
• 🔄 Has the circuit breaker on the panel worked?? Sometimes refrigerators turn off during power surges.

If the power supply is OK, check the temperature settings:

• ❄️ Make sure that the freezer is not turned off with the button (in some models Samsung and LG there is a "Vacation" function or "Eco").
• 📉 See if the settings have been lost. The optimal temperature for the freezer is -18°C. If the display shows 0°C or +5°C, someone could have accidentally changed the mode.
• 🔇 Is the "Super Freeze" mode activated? In some refrigerators (for example Bosch Serie 6) it turns off automatically after 24 hours.

Also pay attention to external conditions:

• 🌡️ Room temperature. If the refrigerator is located next to the radiator or on the sunny side, the compressor may not cope. The norm for work is +16…+32°C.
• 🚪 Door closure tightness. Check whether a foreign object (for example, a bag of food) is interfering with the seal.
• 📦 Overloading the freezer. If the chamber is filled to capacity with food, air circulation is disrupted.

2. Diagnostics by sounds: what your refrigerator says

The refrigerator “talks” to you through sounds - you just need to learn to understand them. If the freezer does not freeze, listen:

🔊 Compressor test:

1. Unplug the refrigerator.
2. Remove the back cover (in most models it is secured with 4–6 screws).
3. Find the compressor (black “barrel” with tubes).
4. Turn on the refrigerator and listen: if the compressor does not heat up and does not vibrate, it is faulty.

How to check the thermostat without multimeter?

If you don’t have a multimeter, you can temporarily close the thermostat contacts with a wire (with the power off!). If after this the compressor starts, the thermostat is faulty and requires replacement. Attention: this method only works for mechanical thermostats (you cannot do this in electronic models!).

3. Problems with the No Frost system: why the freezer does not freeze, but the refrigerator works

In refrigerators with the system No Frost (for example, Indesit NBA 18, Atlant XM 4021-000), the freezer may stop freezing due to a malfunction of the defrosting system. Here 3 key unitsthat break down most often:

1. Defrost heater (TEN)

If the heating element burns out, ice builds up on the evaporator and blocks air circulation. Signs:

• ❄️ There is a thick layer of ice on the back wall of the freezer.
• 💨 The fan does not blow (or blows weakly).
• 🔥 The heater does not heat up when turned on forcibly (checked with a multimeter).

2. Defrost timer

In mechanical systems No Frost the timer switches the “freezing/thawing” modes. If it breaks, the system will freeze in one of the modes. How to check:

• Turn the timer knob (usually located next to the compressor) clockwise until it clicks.
• If after this the compressor does not start, the timer is faulty.

3. Defrost sensor (defroster)

In electronic models (Samsung RL-34, LG GA-B489) the sensor is responsible for defrosting. If it gives incorrect readings, the control board blocks the compressor from starting. Symptom: the freezer is defrosting and an error is flashing on the display (for example, Er IF or Er FF).

Unplug the refrigerator for 12+ hours to completely defrost

Check the rotation of the fan after turning it on

Test the defrost heater multimeter (resistance ~20–50 Ohm)

Inspect the control board for burnt elements-->

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

Freon is a refrigerant that circulates through the system and cools the chambers. If a leak occurs, the freezer stops freezing, and the compressor works non-stop (trying to compensate for the lack of refrigerant). Causes of leakage:

• 🔧 Mechanical damage pipes (for example, when moving the refrigerator).
• 🕳️ Corrosion aluminum tubes (a common problem in refrigerators older than 10 years).
• 🔥 Overheating of the compressorleading to depressurization of the system.

How to check the leak yourself:

1. Turn off the refrigerator and defrost it.
2. Inspect the back wall: if there are oily spots, this is a sign of a leak.
3. Try to find the leak with a soap solution (there will be bubbles in the cracks).

⚠️ Attention:

If you suspect a freon leak, do not turn on the refrigerator before fixing the problem. Running the compressor “dry” can lead to its complete failure, and repairs will cost 2–3 times more than refilling with freon.

5. Electronics malfunctions: control board and sensors

In modern refrigerators (Liebeherr CN 4015, Beko RCSK 310M20), an electronic control board is responsible for the operation of the freezer. If it burns out or malfunctions, the freezer may:

• ❄️ Stop freezing completely.
• ⏺️ Turn on and off randomly.
• 📛 Show errors on the display (for example, Er FF, Er IF, E1).

Frequent causes of board failure:

• ⚡ Voltage surges (if the refrigerator is not connected through a stabilizer).
• 💧 Moisture ingress (for example, during defrosting).
• 🕷️ Short circuit due to insects (yes, it happens!).

How to diagnose:

1. Unplug the refrigerator.
2. Remove the board cover (usually located on top or back).
3. Inspect the board for burnt elements (blackened or swollen details).
4. Check the fuses (if any) with a multimeter.

🔧 Temporary solution:

If the board is burned out and there is no way to wait for the technician, you can try reflash it (for this you need a programmer and firmware for your model). However, this is a temporary measure - over time the problem will return.

6. Clogged capillary tube: why the freezer does not freeze well

The capillary tube is a thin channel through which freon enters the refrigerator. evaporator If it becomes clogged (for example, due to moisture or oil), the freezer begins to freeze poorly, and the compressor is overloaded. Signs of a clog:

• ⏳ The refrigerator takes a long time to gain temperature.
• 🔊 The compressor is humming louder than usual.
• 🧊 A “snow cap” forms on the back wall of the freezer.

How to remove the blockage:

1. Unplug the refrigerator and defrost it.
2. Use a pressure gauge to check the pressure in the system (normally it should be ~4–6 atm).
3. If the pressure is low, the tube needs to be cleaned or replaced (this is done in the service using special equipment).

⚠️ Attention:

Do not try to clean the capillary tube with wire or air! This can damage it and aggravate the problem. For cleaning, use hydraulic press or nitrogen under pressure.

7. Breakdowns associated with the freezer door

If the freezer does not freeze, but the compressor is working normally, the problem may be in door. Here's what to check:

1. Sealing rubber

Over time, the seal loses elasticity and allows warm air to pass through:

• 📄 Insert a piece of paper between the door and the body.
• 🚪 Close the door and try to pull out the sheet.
• If the paper comes out easily, the seal needs to be replaced.

2. Door hinges

If the door sags, it does not close tightly. To adjust the hinges:

1. Loosen the screws on the top and bottom hinge.
2. Align the door.
3. Tighten the screws and check the tightness.

3. Door closing sensor

Some models (Samsung RB-30 J3200) have a sensor that blocks the operation of the freezer if the door is open for more than 1-2 minutes. If the sensor is broken, the freezer may not turn on even when the door is closed. Check with a multimeter (resistance should be ~0 Ohm at. closed door).

8. When to call a repairman: 5 cases when amateur activity is dangerous

Not all breakdowns can be repaired on your own. Here are the situations when you need to contact service:

• 🔧 Freon leak (refilling and soldering required). tubes).
• ⚡ Replacement of the compressor (a vacuum pump and special tools are needed).
• 🖥️ Repair or replacement of the board control (you can't do without a circuit and soldering equipment).
• 🔥 Clogged capillary system (needs cleaning with nitrogen).
• ❄️ Failure of the No Frost system (replacement of the heating element or defrost sensor).

💰 Repair cost in service (approximate prices):

⚠️ Attention:

If your refrigerator is under warranty, do not disassemble it yourself this will void the warranty. Contact an authorized service center (the list is usually in the device passport).

FAQ: Frequent questions about a non-working freezer

The freezer does not freeze, but the refrigerator is working - what is the reason?

This is a typical sign No Frost system failure (if the freezer is on top) or freon leaks in the freezing circuit. Also check if the temperature settings have gone wrong. serviceability of the fan (for models with No Frost).

The compressor works, but the freezer does not freeze - what to do?

Most likely, the problem is freon leakage, capillary tube clogged or thermostat malfunctionCheck:

1. Condenser temperature (should be hot).
2. Presence of ice on the evaporator (if there is none, there is no freon).
3. Fan operation (for No Frost).

The freezer works, but does not turn off - is this normal?

No, this is a sign thermostat malfunctions or freon leaks. Normally, the compressor should turn off for 10-20 minutes every hour. If it works non-stop:

• Check the temperature settings (the “Super Freeze” mode may be set).
• Inspect the door seal.
• Test the thermostat with a multimeter.

After defrosting, the freezer does not turn on - what to do?

Probable reasons:

• 💧 Water on the electronics (you need to dry the refrigerator for 12+ hours).
• ❄️ Fan icing (in models No Frost).
• ⚡ Control board failure (try disconnecting the refrigerator from the mains at 5 minutes).

How much does it cost to repair a freezer in a refrigerator?

The cost depends on the breakdown:

• 🔧 Replacing the thermostat: 1500–2500 ₽.
• ❄️ Repair No Frost: 2000–4000 ₽.
• 🔥 Replacing the compressor: 5000–10 000 ₽.
• 🕳️ Freon leakage: 3000–5000 ₽.

If the refrigerator is older than 10 years, it is sometimes cheaper to buy a new one than to repair it.