The refrigerator freezes like a freezer: 7 reasons and how to fix it

Did you open the refrigerator to get milk, but instead found ice on the bottle? Or did the food in the main compartment become frosted, as if it had been placed in the freezer? This situation is not only annoying, but also threatens food spoilage - from frozen vegetables to broken glass jars. In 80% of cases, the problem is solved without calling a technician, if the cause is correctly identified.

In this article we will look at why the refrigerator begins to freeze like a freezer - from a banal error in the settings to serious compressor breakdowns. You will learn how all possible reasons, according to which the refrigerator begins to freeze like a freezer - from a banal error in the settings to serious compressor breakdowns. You will learn how to diagnose a malfunction by indirect signs, what manipulations you can do yourself, and when it’s time to call a specialist. We have also compiled a table of symptoms with precise recommendations for elimination for each situation.

1. Incorrect temperature settings

The most common cause of “arctic” conditions in the refrigerator is accidentally changed cooling mode. Modern models (for example Samsung RB30A3200SA or LG GA-B489YGQZ) have separate controls for the refrigerator and freezer compartments, but even in simple refrigerators you can accidentally reset the settings.

What to check:

• 🔹 Super Freeze mode (Super Freeze or Fast Freeze): if it is activated, the refrigerator will freeze more intensely until you turn it off manually.
• 🔹 Temperature sensor: in electronic models the target indicator may have gone astray (optimally: +4…+5°C for refrigeration camera).
• 🔹 Vacation mode (Vacation Mode): some refrigerators switch to minimum power consumption, but freeze harder.

How to fix:

1. Find a button or menu with temperature settings (usually indicated by a snowflake ❄️ or a thermometer).
2. Set the refrigerator compartment to +4°C, for the freezer - -18°C.
3. Disable all additional modes (if they are lit by indicators).

⚠️ Attention: In refrigerators No Frost after resetting the settings, it may take up to 24 hours for the temperature to stabilize. Do not panic if the problem does not disappear immediately after the changes.

2. Clogged ventilation system (No Frost)

Refrigerators with a system No Frost (for example, Bosch KGE39XW2AR or Indesit DF 5200 W) use fans to distribute cold air evenly. If the air channels become clogged with ice or dust, the cold stops flowing into the freezer and gets “stuck” in the refrigerator compartment.

Signs of a blockage:

• 🧊 Ice on the back wall of the refrigerator compartment (even if the model No Frost).
• 🔊 Unusual fan noise (grinding, crackling).
• 🌡️ The freezer does not freeze well, and the refrigerator freezes.

How to clean:

1. Unplug the refrigerator and defrost it for 12-24 hours.
2. Remove the back panel in the refrigerator compartment (usually secured with latches or screws).
3. Remove ice and dust from the vents using a hair dryer (cold mode!) or a soft brush.
4. Check the operation of the fan - it should rotate freely.

How to defrost a No Frost refrigerator quickly?

Place a pan of hot water (not boiling water!) in the chamber and close the door. The steam will speed up the melting of the ice. Repeat the procedure every 30 minutes, draining the water from the tray.

3. Faulty thermostat or temperature sensor. data-i="99">If the refrigerator freezes like a freezer

If the refrigerator freezes like a freezer continuously, even after resetting the settings, the culprit is most likely thermostat (in mechanical models) or temperature sensor (in electronic models). These devices are responsible for signaling the compressor to turn on/off.

Symptoms of failure:

• 🔄 The compressor works without stopping (normally it should turn off for 20-30 minutes every hour).
• 📉 The temperature in the refrigerator compartment drops below 0°C, despite the settings.
• 🔧 After manually disconnecting the refrigerator from the network, the problem returns after a few hours.

How to check:

1. For a mechanical thermostat: find the temperature regulator (usually under the degree setting knob) and turn it to minimum. If the compressor does not turn off, the thermostat is faulty.
2. For an electronic sensor: you will need a multimeter (usually located next to the evaporator) - the resistance should change as the temperature changes.

⚠️ Attention: Replacing a thermostat or sensor in electronically controlled refrigerators (for example, Liebherr CPesf 4023) requires flashing the module. Without this, the new sensor may not work correctly.

4. Freon leak or capillary tube clogged

If the refrigerator is not just freezing, but stopped cooling the freezerand the compressor is wearing out, it is possible refrigerant (freon) leak or a blockage in circulation system. This is a serious breakdown that requires professional repair.

Signs of a freon leak:

• 🛢️ The compressor is hot, but there is almost no cold (or only in the refrigeration chamber).
• 🔊 Characteristic gurgling or hissing in the system (with a major leak).
• 🧊 Ice builds up only in one corner of the chamber (usually where the capillary tube is located).

What to do:

It is impossible to eliminate the leak on your own - you need to:

1. Detecting the location of the leak (using a leak detector).
2. Removing the old freon and evacuating the system.
3. Refilling with new refrigerant (usually R-134a or R-600a).

5. Breakdown of the compressor or start relay

The compressor is the “heart” of the refrigerator. If it does not work correctly, the refrigerator may either not freeze at all, or freezing without stopping. data-i="153">turn-to-turn short circuitlike a freezer. A common reason is turn-to-turn short circuit in the winding or a fault start relay.

How to diagnose:

• 🔊 The compressor hums, but does not start (or starts with clicks).
• 🔥 Compressor housing gets too hot (over 80°C).
• 📏 The refrigerator freezes unevenly: sometimes too much, sometimes too little.

Checking methods:

1. Turn off the refrigerator, take out the relay (black box on the compressor) and shake. If you hear a knock, the relay is faulty.
2. Ring the compressor windings with a multimeter:
   • Resistance between contacts C-S (common winding - starting): ~20–40 Ohm.
   • Resistance between C-R (total - working): ~10–20 Ohm.
   • Resistance between S-R (starting - working): the sum of the two previous values.

⚠️ Attention: If the winding resistance is equal 0 (short circuit) or ∞ (open circuit), the compressor must be replaced. Repairing the windings is not cost-effective.

6. Problems with the door seal

A worn or dirty seal allows warm air to pass through, causing the refrigerator to work harder. As a result, the temperature in the chamber drops below normal, and ice forms on the back wall.

How to check the tightness:

• 📄 Take a sheet of paper, close the door and try to pull it out. If the sheet comes out easily, the seal does not fit.
• 🔦 Shine a flashlight inside the closed refrigerator. If light is visible, there are gaps.

How to restore the seal:

1. Wash the rubber band with warm water and soap, dry.
2. Apply silicone grease (for example, WD-40 Specialist) to elasticity.
3. If the seal is deformed, replace it (cost: 1000–3000 ₽ depending on the model).

7. Incorrect installation of the refrigerator

If the refrigerator is placed in an inappropriate place, this may interfere with its operation. For example:

• 🔥 Next to heat sources (battery, stove, direct sunlight) - the compressor overheats and works without stopping.
• 🪟 Back to back to the wall - condenser ventilation is disrupted (grids on the back wall).
• ⚡ Uneven floor —the door warps, the seal does not fit well.

Optimal installation conditions:

• Distance to the wall: not less 5–10 cm.
• Room temperature: +16…+32°C.
• Floor level: check the building level, adjust the legs if necessary.

Frequently asked questions (FAQ)

Is it possible to use a refrigerator if it freezes like freezer?

Short-term (1-2 days) - yes, but food may spoil due to too low a temperature. Long-term operation in this mode leads to:

• Increased wear of the compressor.
• Ice formation on the evaporator and fan (in models No Frost).
• Damage to the thermostat or sensors.

Better immediately diagnose the cause and eliminate it.

How much does it cost to repair if the refrigerator freezes like a freezer?

The cost depends on the cause:

Breakage	Repair price (₽)
Replacing the thermostat	1500–3000
Cleaning the system No Frost	2000–4000
Refilling freon	3500–6000
Replacing the compressor	5000–12000

Prices are relevant for Moscow and the region. In the regions, they may differ by 20–30%.

Why did the refrigerator start to freeze more after defrosting?

Probable reasons:

1. Moisture got into the system and froze on the evaporator (re-defrosting is required for 24 hours).
2. During defrosting, the temperature sensor was damaged or thermostat.
3. After switching on, the “Super Freeze” mode was activated (check the settings).

If the problem does not disappear after a day, call a technician.