Defrosting a refrigerator Bosch is a procedure that many owners put off until the last minute, until a thick layer of ice forms on the walls. Meanwhile, regular removal of ice not only extends the service life of equipment, but also reduces energy consumption by 15–20%. In this article we will figure out how to defrost a refrigerator Bosch any model - from classic KGN39XL30 to modern NoFrost, without damaging the system and without spending the whole day on it.
You will find out which tools really speed up the process (and which are a myth), how to avoid common ones errors leading to compressor breakdowns, and what to do with condensate so as not to flood your neighbors. We will separately dwell on the nuances for refrigerators with a system LowFrost and models with electronic control, where defrosting requires a special approach.
Following our recommendations, you can defrost the refrigerator Bosch for 1–3 hours (depending on the model) without risk to the equipment. And as a bonus, you will receive a checklist for care after defrosting, which will help keep food fresh longer.
Preparing for defrosting: what needs to be done before turning off the refrigerator
The first step is proper preparation. Not only the speed of defrosting, but also the safety of your equipment depends on how carefully you organize the process. Let's start with the most important thing: You can’t just pull the plug out of the socket and wait until the ice melts on its own. This is fraught with power surges when turned on again and overloading the compressor.
Here’s what you need to do in advance:
- 📅 Choose a time. Ideal - early morning on a cool day (so there will be ice melt more slowly, and you will have time to remove the water). In hot weather, the defrosting process will take 30–50% longer.
- 🧊 Transfer the food. Use cooler bags, bowls of cold water, or regular bags wrapped in towels. Meat and dairy products spoil after just 2 hours at room temperature.
- 🔌 Turn off the power correctly. Do not pull the plug - use the button on the panel (if available) or turn the thermostat to position
0/OFF. This will protect the electronics from failures. - 🧽 Prepare your equipment. You will need: towels (preferably terry), sponges, a plastic scraper (not metal!), bucket, hair dryer (optional), absorbent wipes.
⚠️ Attention: If your refrigerator Bosch is equipped with a display (models KAN92VI30, KIN86AF30 etc.), after turning off the power, wait 1–2 minutes before starting defrosting. This is necessary so that the capacitors are discharged and a short circuit does not occur when moisture gets in.
Pay special attention drainage hole (usually located on the back wall inside the chamber). If it is clogged, water will pool at the bottom and may leak onto the floor. Clean it in advance using a cotton swab or a special brush (included with some models).
Remove all products and shelves
Turn off the power through the panel or thermostat
Install containers for collection water
Clean the drainage hole
Place towels under the refrigerator-->
How long does it take to defrost a Bosch refrigerator
The defrosting time depends on three factors: ice thickness, system type (drip, NoFrost, LowFrost) and external conditions (room temperature, humidity). The table below shows approximate dates for different scenarios:
| Refrigerator type | Ice thickness | Room temperature | Defrost time |
|---|---|---|---|
| Drip system (KGV36VW30) | Up to 5 mm | 18–22°C | 1–1.5 hours |
| LowFrost (KGN39XW30) | 5–10 mm | 20–25°C | 2–3 hours |
| NoFrost (KAN92VB35) | Thin layer of frost | Any | 30–60 minutes* |
| Old models (before 2010) | More than 1 cm | Below 18°C | 4–6 hours |
* In refrigerators NoFrost ice forms only in the freezer compartment. If there is no ice, just wipe the walls with a damp cloth. with a rag.
To speed up the process, many use hairdryer or hot water. However, there are nuances:
- 🔥 Hair dryer: Keep at a distance 20–30 cm from the walls, use cold or warm (not hot!) air. Direct the flow from top to bottom to avoid overheating of the plastic.
- 💧 Hot water: Pour it into bowls and place on shelves. Change the water every 10-15 minutes. Never pour boiling water directly onto the ice - this can damage the seals. doors.
- ❄️ Special sprays: Products like Ice Off or Antarctic accelerate melting by 30-40%, but are only suitable for models without NoFrost.
⚠️ Attention: If your The refrigerator Bosch is equipped with a system VitaFresh (freshness zone), do not direct a stream of hot air at it. Temperature changes can damage the electronic control unit.
Once every 3-6 months
Once a year
Only when ice prevents the door from closing
Never defrosted-->
Step-by-step instructions: how to defrost a Bosch refrigerator without risk
Now let's move on to the process itself. Follow the instructions strictly step by step to avoid typical mistakes, such as compressor overload or damage to the freon circuit.
Step 1: Defrosting the main chamber
Start with the refrigerator compartment (if there is ice there too). Open the door wide open and lock it so that it does not close. Place towels on the bottom to absorb condensation. If your model has it (for example, in ventilation grilles (for example, in KIN86AF30), do not close them - this will disrupt the circulation. air.
To speed up:
- 🧊 Place bowls with warm (not hot!) water on the shelves.
- 🌀 Use a fan, pointing it at the open door (distance - not less than 1 m).
- 🧻 Periodically remove melt water from the walls with a soft sponge.
Step 2: Defrosting the freezer
The freezer takes longer to defrost due to lower temperatures. do not use sharp objects to chip ice. Even a plastic scraper can damage the aluminum tubes of the evaporator (especially in models LowFrost).
Action algorithm:
- Wait until the ice thaws naturally by 70–80%.
- Carefully pry off the remaining ice with a wooden spatula (for example, for ice cream).
- Wipe the walls with a vinegar solution (1 tablespoon per 1 liter of water) - this will remove odors and disinfect.
Step 3: Removing water and drying
After the ice has melted, do not turn on the refrigerator immediately. First:
- 🧹 Remove all water from the shelves and bottom (use a sponge or rag).
- 🌬️ Dry the chambers for 30–60 minutes with open doors.
- 🕳️ Check the drainage hole - if the water does not drain out, clean it with wire.
For models with NoFrost just wipe the walls with a dry cloth - the moisture will evaporate on its own 10–15 minutes.
Features of defrosting Bosch refrigerators with the NoFrost system
Many people mistakenly believe that refrigerators NoFrost do not need defrosting. In fact, in the freezer such models (KAN92VB35, KIN86AF30 etc.) still form a thin layer of frost. It must be removed every 6-12 months, otherwise:
- ❄️ The load on the fan will increase, which will lead to its wear.
- ⚡ Energy consumption will increase by 10–15%.
- 🦠 Bacteria will multiply in a humid environment (especially in the zone VitaFresh).
The defrosting process for NoFrost simplified:
- Disable refrigerator from the mains.
- Take out all the food and shelves.
- Wipe the walls with a soft cloth soaked in soapy water.
- Leave the doors open for 30-40 minutes to ventilate.
- Turn on refrigerator and wait for the temperature to return (about 2 hours).
⚠️ Attention: In refrigerators Bosch with NoFrost and electronic control (KAN92VI30), after turning on the indicator may light up Al (error). This is normal - it will go out. automatically after 1-2 cycles of operation.
What will happen if you do not defrost NoFrost?
The fan freezes and begins to make noise, and then may break down. In addition, due to the disruption of air circulation, products in the VitaFresh zone deteriorate faster, and in the back. condensation forms on the wall, which flows into the drainage and clogs it.
Common mistakes and how to avoid them
Even experienced users sometimes make mistakes that lead to breakdowns. Here are the most common ones and ways to prevent them:
| Error | Consequences | How to avoid |
|---|---|---|
| Using a knife or fork to chip ice | Evaporator puncture, freon leak, repair from 5,000 ₽ | Use only wooden/plastic spatulas |
| Turning on the refrigerator immediately after defrosting | Short circuit, compressor combustion | Dry the chambers for at least 30 minutes |
| Water getting into the electronic unit (models with display) | Firmware failure, errors E01, E02 |
Cover the unit with film or a towel |
| Defrost at room temperature above 30°C | Overheating of the compressor when turned on | Choose a cool time of day or use air conditioning |
Another typical problem is forget to clean the drainage holeIf the water does not drain, it accumulates under the vegetable drawers and begins to smell unpleasant. To avoid this, after defrosting, rinse the hole with a solution of soda (1 teaspoon per glass of water) using a syringe without. needles.
If, after turning on the refrigerator Bosch does not cool or makes unusual sounds (for example, knock or hissing), turn it off immediately and check:
- 🔌 Is the power cord connected correctly.
- ❄️ Is the fan frozen (in models NoFrost).
- 📉 Not lost temperature settings (should be
+4°Cfor the refrigerator compartment and-18°Cfor the freezer).
Care after defrosting: how to prolong the effect
Defrosting is only half the battle. To make ice form more slowly and the refrigerator to work more efficiently, follow these tips:
- 🧼 Wash the seals. Once a month, wipe the rubber door gaskets with a solution of vinegar or a special product (for example, Top House). This will prevent them from cracking and loss of seal.
- 📦 Store food correctly. Do not place hot foods or open liquids in the refrigerator (they increase humidity).
- 🌡️ Control the temperature. B the refrigerator compartment should be
+3…+5°C, in the freezer --18°C. Lower values lead to freezing. - 🔄 Ventilate. Once a week, leave the door open for 5-10 minutes (for example, while cleaning). equalizes pressure and reduces ice.
For models with LowFrost (KGN39XL30, KGN36XL30) it is useful to wipe the back wall of the freezer with a dry cloth once every 3 months - this removes microscopic frost, which turns into ice over time.
If your refrigerator Bosch is equipped with a function SuperCooling or SuperFreezing, do not forget to turn it off after loading food. Constant operation in this mode increases frost by 40%.
Defrosting Bosch refrigerators of different generations: what is the difference
Technologies Bosch have evolved, and the approach to defrosting is different for old and new models. features:
Models before 2010 (for example, KGV36VW20)
They use manual defrosting without automation. Main nuances:
- 🕒 Defrost time - up to 6–8 hours with a thick layer of ice.
- 🔧 The drainage hole often becomes clogged - clean it with wire.
- ⚡ The compressor is sensitive to power surges - use a surge protector.
Models 2010–2018. (KGN39XL30, KGN36XL30)
A system has appeared here LowFrostthat reduces icing, but does not remove it completely. Features:
- ❄️ Ice forms mainly in the corners of the freezer.
- 🌬️ The fan requires careful handling - do not direct a stream of hot air at it.
- 📟 Electronic models (KGN39XW30) may show an error
E01after turning on - it is normal if it disappears after 10 minutes.
Models after 2018 (KAN92VB35, KIN86AF30)
Modern refrigerators Bosch equipped NoFrost and smart electronics. For them:
- ⚡ Defrosting once a year is enough (if there are no malfunctions).
- 📱 When When defrosting, turn off the function HomeConnect (if available) to avoid crashes in the application.
- 🔋 After turning on, wait for a signal (audible or on the display) confirming the temperature has been restored.
⚠️ Attention: In models with HomeConnect (KAN92VI30) after defrosting, you may need to resynchronize with application. To do this, press and hold the button SmartHome on the panel for 5 seconds.
What to do if the Bosch refrigerator does not turn on after defrosting
If after all the manipulations the refrigerator does not start, do not panic. In 80% of cases the problem is. can be solved without calling a technician. Follow this algorithm:
- Check the power.
- Make sure that the plug is firmly inserted into the socket.
- Try connecting another device to this socket (for example, a phone charger) to eliminate its malfunction.
After defrosting, some models (KGN39XW30) turn on with a delay of up to 10 minutes. This is normal - wait.
Codes errors:
E01- problem with the temperature sensor.E02- fan malfunction.E03- system failure NoFrost.- Reset the settings.
Unplug the refrigerator for 15 minutes, then turn it on again. This will reset temporary errors.
If it lights up Al, this may mean that the door is not closed properly or the seal damaged.
If the refrigerator turns on but does not cool:
- 🔊 Listen to see if it works. compressor (should hum quietly).
- ❄️ Check if the fan is frozen (in models NoFrost).
- 🌡️ Make sure that the thermostat is not out of order (should be on
2–3for the refrigerator compartment).
If none of the points helped, most likely the problem is in:
- 🔌 Electronics (control board).
- ❄️ Freon leakage (refilling required).
- 🔄 Compressor (may burn due to a power surge).
⚠️ Attention: If the refrigerator Bosch makes noise clicking when you try to turn it on, but does not start, this is a sign of a faulty start relay. Do not try to repair it yourself - contact the service.
FAQ: Answers to frequently asked questions about defrosting Bosch refrigerators
Is it possible to defrost a Bosch refrigerator without unplugging it?
No, it's dangerous! Even if the ice melts, moisture can get on electrical components and cause a short circuit. In addition, the compressor will run idle, which will lead to its overheating. Always unplug the refrigerator from the outlet before defrosting.
How often should you defrost a Bosch refrigerator with NoFrost?
The manufacturer recommends doing this every 6-12 months, even if the ice is not visible. The fact is that microscopic frost still accumulates in the freezer, which reduces operating efficiency over time. In addition, defrosting is needed for hygienic cleaning removal of bacteria and odors.
Why does a Bosch refrigerator make a lot of noise after defrosting?
This normal in the first 1–2 hours after switching on. The noise occurs because the compressor is working intensified modeto restore the temperature. If the noise does not disappear for more than a day, check:
- Is the refrigerator touching walls or furniture (there should be a distance 5–10 cm on all sides).
- Is it clogged fan (in models NoFrost).
- Have the settings gone wrong (for example, the mode is on SuperFreezing).
Can salt or special products be used to speed up defrosting?
Salt not recommended —it can damage the chamber coating and leave streaks. Special sprays (for example, Ice Off) are safe, but are only suitable for models without NoFrost. For refrigerators with this system, warm water and a soft sponge are enough.
What to do if, after defrosting, Is there an unpleasant smell in the refrigerator?
The reasons for the smell can be different:
- 🧼 Poor cleaning. Wipe all surfaces with a solution of vinegar or soda (1 tablespoon per 1 liter of water).
- 🕳️ The drainage is clogged. Clean the hole and rinse it solution of citric acid.
- 🦠 Bacteria. Place an open pack of soda or activated carbon in the refrigerator for 12 hours.
- 🧀 Products with a strong odor. Store cheeses, fish and spices in airtight containers.
If the smell remains, check the seals - they may be moldy (they need to be replaced).