Is it possible to make a refrigerator out of a refrigerator? freezer? Step-by-step instructions with photos and tips

Converting a refrigerator into a freezer is a task that arises for many owners of old appliances. Perhaps your refrigerator Indesit or Atlant still works properly, but the freezer compartment is too small, or you want to organize additional space for freezing berries, meat and semi-finished products. In this article we will look at which models are suitable for conversionwhat needs to be replaced in the design, and how to avoid typical mistakes that lead to compressor failure or ineffective operation.

It is important to understand: not every refrigerator can be adapted to a freezer. For example, single-chamber models with a top freezer (type Biryusa-18) are technically easier to modify than two-chamber No Frost. The type of refrigerant, compressor power, and even the material of the door seal also play a role. If you are not confident in your abilities, it is better to contact a specialist, but with the right approach, remodeling will cost less than buying a new freezer.

In this article you will find:

• 🔍 Criteria for choosing a refrigerator for alterations (which models are suitable and which are not).
• 🛠️ Step-by-step instructions with photos and diagrams (from replacing the thermostat to setting the temperature).
• ⚠️ Dangerous mistakesthat lead to compressor breakdown or increased energy consumption.
• 💰 Cost comparison: which is cheaper - converting an old refrigerator or buying a new freezer.

Which refrigerators can be converted into a freezer?

Not all refrigerators are suitable for modification. The main criterion is type of cooling system:

• ✅ Drip (crying) - the most suitable. They have a simple design and are easier to adapt to low temperatures (down to –18°C). Examples: Atlant MHM-1705, Stinol-102.
• ⚠️ No Frost —rework is possible, but replacement of the electronic control unit and sensors will be required. It’s better not to take it on without experience.
• ❌ Two-compressor - it is impractical to redo it, since the freezer already works autonomously.
• ❌ Refrigerators with a linear compressor (for example, some models LG) - they are not designed for long-term operation frost.

Also pay attention to:

• 🔋 Compressor power. The freezer requires a compressor that is no weaker 120 W. If your refrigerator consumes 80–100 W, it will not tolerate constant freezing.
• 📏 Thermal insulation thickness. In freezers it is usually 60–80 mm, and in refrigerators - 40–50 mm. If the walls are thin, you will have to insulate additionally.
• 🚪 Door seal. Freezers use a double circuit magnetic seal. In refrigerators it is often single-loop, which will lead to freezing.

⚠️ Attention: If your refrigerator was manufactured before 2005, it may use refrigerant R-12 (freon), which is prohibited for use. Conversion of such equipment requires a complete replacement of the refrigerant with R-134a or R-600a, which is expensive and not always justified.

What is needed for the conversion: tools and spare parts

To modify the refrigerator into a freezer you will need:

Additionally, you may need:

• 🔨 Drill - if you need to drill holes for attaching a new thermostat.
• 🧰 Soldering iron — for replacing the wiring (if you are changing the electronic unit).
• 🧴 Sealant — for processing the joints of the seal.
• 📐 Insulation (polyurethane foam) - if the walls of the refrigerator are too thin.

Step-by-step instructions: how to convert a refrigerator into a freezer

The conversion process consists of several stages. Let's start with preparation:

1. Disconnect the refrigerator from the network and defrost it (if it was in use). 2-3 hoursso that the condensation evaporates.
2. Remove the back cover (it is usually attached with self-tapping screws). data-i="148">Remove the back cover
3. Check the condition of the compressorIf it gets very hot or makes strange sounds, it is better to replace it in advance.

Step 1: Replacing the thermostat

Old refrigerator thermostat designed for temperature +2…+8°C, and for the freezer you need a range –18…–24°CReplacement algorithm:

1. Disconnect the capillary thermostat tube from the evaporator.
2. Remove the old thermostat by unscrewing the fastening nuts.
3. Install a new thermostat (for example, Danfoss 077B6355) and connect it according to the diagram. Secure the capillary tube of the new thermostat to the evaporator using. clamp.
4. Adjust the thermostat to the minimum temperature (usually this is the position of the regulator at 5–7).

Step 2: Replacing the door seal

The old seal will not provide a tight seal at low temperatures. To replace it:

1. Remove the old seal by prying it off with a screwdriver (it is usually attached with screws or glue).
2. Clean the groove from any remaining glue or sealant.
3. Install the new seal, starting from the upper corners. For better fixation, use sealant Moment Installation.
4. Check the tightness: close the door and try to insert a sheet of paper. If it does not pass, the seal is installed correctly.

Step 3: Additional insulation (if necessary)

If the walls of the refrigerator are thin (40 mm), they can be insulated with polyurethane foam:

1. Remove the inner lining of the refrigerator (usually it is secured with latches).
2. Fill voids between the walls with polyurethane foam. Do not overdo it - excess foam can deform the body.
3. After drying, cut off the excess and install the casing back.

Temperature setting and first start

After assembly it is necessary correctly set the temperature mode. Here's how to do it:

1. Connect the refrigerator to the network and set the thermostat control to position MAX (or 7, if the scale is digital).
2. Place the thermometer (preferably electronic) inside the chamber and close the door.
3. Through 4–6 hours check the temperature. It should be in the range –18…–20°C.
4. If the temperature is higher -15°C, adjust the thermostat or check the tightness of the seal.

Critical error: if after starting the compressor runs without stopping for more than 2 hours, this is a sign of a thermostat malfunction or a refrigerant leak. Immediately turn off the refrigerator and check:

• 🔌 The thermostat is connected correctly.
• 🧊 The tightness of the system (are there any oil stains on the compressor - this is a sign of a freon leak).
• 🌡️ The temperature of the condenser (it should be hot, but not scalding).

If everything is in order, but the temperature does not drop below -10°Cthe compressor may not be powerful enough. In this case, only replacing it will help.

Typical mistakes and how to avoid them

Even with careful rework, you can make mistakes that will lead to breakdown. Here are the most common:

⚠️ Attention: If you replaced the thermostat, but did not check its calibration, the freezer may operate in the –30°Cmode, which will lead to overload of the compressor and its failure within 1–2 months.

• 🔧 Use of the old seal —leads to freezing of the door and increased energy consumption. Solution: replace with a magnetic seal with a double circuit.
• ❄️ No additional insulation —if the walls are thin, the compressor will work for wear. Solution: insulate with polyurethane foam or extruded polystyrene foam.
• ⚡ Incorrect connection of the thermostat —if the wires are mixed up, the refrigerator will either not turn on or will work without stopping. Solution: check the connection diagram for your model.
• 🔌 Ignoring checking the refrigerant - in old refrigerators there may be R-12, which is incompatible with modern compressors. Solution: replace freon with R-134a or R-600a.

Another common problem is condensation on the outer walls. This occurs due to the temperature difference between inside and outside the chamber. To avoid:

• Install the refrigerator away from batteries and direct sunlight.
• Check that the seal is not damaged (even a small gap will lead to ice formation).
• Use anti-condensation sealant for processing joints.

What to do if the freezer does not freeze?

If after the alteration the temperature does not drop below -10°C, check:

- refrigerant pressure (refills may be required);

- fan operation (in No Frost models);

- thermostat setting (sometimes re-calibration is required).

If the problem is not solved, contact a specialist to diagnose the compressor.

Cost comparison: remodeling vs buying a new freezer

Let's figure out what is more profitable - modifying an old refrigerator or buying a new freezer.

Conclusion: remodeling is profitable if:

• 💰 The budget is limited (you are willing to spend up to 5 000 ₽, but not 20 000 ₽).
• 🔧 You have experience with technology (or you are ready to learn).
• 📦 You you need additional volume for freezing, and not the main freezer.

If you need a reliable, economical and durable freezer, it is better to buy a new one. Modern models (for example, Liebherr GN 1063 or BEKO FNE 110120) consume little electricity and do not require defrosting.

How to care for a homemade freezer?

To make your converted freezer last longer, follow these recommendations:

• 🧊 Defrosting —carry it every 3–4 months (even if there is no visible ice). Use a plastic scraper to avoid damaging the evaporator.
• 🧹 Cleaning —wipe the inner walls with a solution of baking soda (2 tbsp per 1 liter of waterDo not use abrasive detergents!
• 🔌 Power supply - connect the camera via stabilizer voltageif there are surges in your network.
• 🌡️ Temperature control —check the readings with a thermometer once a month. If the temperature rises above -15°C, check the seal and thermostat settings.

Also note attention to:

• 🔊 Compressor noise. If it becomes louder, you may need to change the oil or refill the refrigerant.
• ❄️ Freezing. evaporatorIf the ice is growing faster than usual, check the door tightness.
• ⚡ Energy consumption. If the electricity bill has increased by 20–30%, it means that the compressor is working in increased mode (possibly due to poor thermal insulation).

⚠️ Attention: If your freezer starts making noise clicking sounds when the compressor is turned on, this is a sign of a malfunction of the start-up relay. Do not ignore it, otherwise the compressor will burn out.

FAQ: Frequently asked questions about converting a refrigerator into a freezer

Is it possible to convert a No Frost refrigerator into a freezer?

Yes, but it is more difficult than with drip models. You will need:

1. Replace the electronic control unit with a model that maintains temperatures up to -24°C.
2. Reconfigure or replace temperature sensors.
3. Check the fan power - it should work at low temperatures.

Without experience, it is better to contact a specialist, since the risk of breakdown is high.

How long will it take alteration?

If you have all the spare parts and tools:

• Replacement of the thermostat and seal - 2-3 hours.
• Additional insulation - 1–2 hours (plus time for foam drying).
• Setting and testing - 4–6 hours (including waiting for cooling).

Total: 1 day intermittently.

Will the converted chamber be noisier than the usual one?

Yes, most likely Reasons:

• The old compressor is operating at maximum power.
• Insulation can worsen sound insulation.
• The fan (in No Frost models) runs louder at low temperatures.

To reduce noise:

• Install the refrigerator on rubber shock absorbers.
• Check the fastening compressor - it should not touch the housing.

Is it possible to use a converted chamber for storing medicines or vaccines?

No! Homemade freezers do not provide:

• Accurate temperature maintenance (permissible fluctuations for medicines - ±2°C, and at the refrigerator - ±5°C).
• Protection against voltage surges (risk of spoilage of drugs during a power outage).
• Certification for medical use.

For these purposes, buy special medical refrigerators (for example, B Medical Systems).

What to do if after reworking the compressor overheats?

Possible reasons and solutions:

Cause	Solution
Insufficient compressor power	Replace with a model with a power of 150 W.
Leakage refrigerant	Contact a specialist for refilling.
Poor ventilation of the compressor	Clean the rear grille from dust, provide a gap 10 cm from the wall.
Incorrect thermostat setting	Calibrate the thermostat or replace it with a more accurate one.