How long does the fridge keep cold if it is switched off?

How long does it take to cool the refrigerator?

The cooling of the interior of the refrigerator’s chambers is gradual. This may take from 5 hours to 24 hours for the first use. Refrigerators with the “No Frost” system cool faster than those that defrost by drip.

The average cold set time in a refrigerator is 1 hour to 4 hours. It all depends on the load of the refrigerator, as well as the manufacturer. If the time has passed up to a day, but the cold is still not felt, it will be a sign of the breakdown of the refrigerator.

The most common breakdowns

The first one that is not adapted to low temperature operation is the thermostat. Its function is to control switching on and off of the compressor. The device is set up for operation within the temperature range given in the fridge certificate. When the ambient air temperature drops below 5°C, the thermostat switches off the compressor and does not switch it on again until the air is warmer. But since the ambient atmosphere will not become warmer before the arrival of spring, the refrigerator motor will not run accordingly.

Another scenario is less innocuous. Occasionally, the refrigerator will still start. But at low temperatures, the oil that lubricates the unit’s rubbing parts becomes thick. When the motor starts, the load on the windings increases significantly and as a result the protective relay might be triggered. Operating in this mode quickly causes serious damage.

But if the engine starts and runs in sub-zero temperatures, you should not rejoice. This is where the most dangerous type of failure awaits the machine. Because there is insufficient heat build-up, not all of the Freon is boiling. The compressor operates on an evaporator that is saturated with droplets.

This mode leads to rapid wear and tear of the equipment. But in the cold, a so-called “hydraulic shock” can occur, completely destroying the engine-compressor mechanism.

Modern No Frost refrigerators lose their ability to defrost in the winter on a cold balcony. Ice build up on the evaporator. This should be a wake-up call that the unit is malfunctioning.

The sealing system of the refrigeration cabinet fails quickly. First of all, rubber seals around the perimeter of door deteriorate. They harden, lose their elasticity and finally they crack and fall apart. It allows outside air to flow freely into the enclosure, and the motor cannot cool it.

In addition, when working in the cold, there is always evaporation that quickly turns into condensation. If it settles on the wires, it can oxidize the contacts and cause a short circuit. The electronic control system of the processes in fridge is especially sensitive to moisture. If there is moisture on the board, the whole automatics unit can break down, and replacing it is expensive.

Cut the power

There are cases of wiring fires caused by faulty refrigerators, although they occur quite rarely

Unfortunately electric networks in our country often give unpleasant surprises, most often in the form of sudden voltage fluctuations. Not only can it damage your refrigerator, but it can also burn out wiring, cause sparks, or even short-circuit. At best the refrigerator is hopelessly damaged, at worst it can cause a fire. Therefore it will be much safer to disconnect refrigerator for the period of your absence. In addition, it will allow to save seriously on electricity.

If it is a question of switching off the refrigerator for more than 2 months, then it is worth at least once a month to turn it on for about an hour to prevent breakage of the compressor.

long, does, fridge, keep, cold

The safest way is not to use the regulator inside the refrigerator compartment, but to unplug it completely from the socket.

How to prolong the life of your refrigerator

If the device is forced to winter in a non-heated room, its functionality gradually begins to decline over time. However, you can follow a few simple rules to prolong the life of your refrigerator:

  • Always keep the appliance clean.
  • Maintain an acceptable level of humidity in the room.
  • Keep your refrigerator away from direct sunlight.
  • Always maintain correct operating and storage temperatures.
  • Replace all defective parts in time.
  • Remember about the periodic maintenance of the appliance.
  • Protect the appliance from rust.
  • If the external coating of the refrigerator is damaged, it should be painted with a special protective paint, this can be done in the salon for painting cars.
  • If there is a foreign chemical odor in the refrigerator, it may not be safe to keep food in it, so it is better to take the unit for repair.
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How to extend the life of your refrigerator

The first thing a diligent and responsible owner, concerned about the longevity of the equipment, does, at least in the first years, is to study the manufacturer’s instructions. It specifies the necessary data. the minimum and maximum temperatures at which the refrigerator can be used (usually it depends on its class, but you can be guided by 10 and up to 40). A low or a high reading will result in an imminent breakdown. Other requirements should also be studied: they are made taking into account the constructional features, installed systems and assemblies.

In the future, the refrigerator can be kept:

  • In a room with low humidity;
  • In a place where there is no direct sunlight (or take care of the protective screen. curtains, blinds);
  • At a decent distance from a gas or electric stove (better near the opposite wall);
  • Not near a working radiator.
long, does, fridge, keep, cold

Proper storage and following the instructions are not the only ways to extend the life of your old and new refrigerator. If periodically to invite the master for preventive inspection of the refrigerator, it is possible to reveal and repair minor problems. Sometimes their presence is invisible to the layman, but the failure of one link inevitably leads to failures in major components and failure of the system as a whole.

Timely replacement of a small part can prevent a global, expensive repair or even the inevitable purchase of a new refrigerator, which will have to be paid for if the old one can no longer be repaired. Timely removal of rust and the painting of metal parts also refers to preventive measures, thanks to which people manage to use the technique as long as possible.

Power outage gives the modern man a lot of inconvenience, because almost everything we use, depends on it. And if a broken TV, a vacuum cleaner or even a computer is not a problem, but not a problem, a fridge can cause not only inconvenience but also financial loss, and even become the cause of ill health. So it’s better to be prepared for such a surprise and be aware of the measures that can be taken to keep supplies safe.

Power outages can happen at any time and can be both short-term and long-term. And you are far from always aware of it, if you lead an active life and do not sit at home. often than not, information about what has happened comes from your neighbors, if you communicate with them. But those who divide their time between the city and the country house, may not even know about when and how long there was no power supply in the house or in the country house.

To monitor the operation of the refrigerator and the quality of storage of supplies, you can use a very simple, but clear and effective way. Freeze water in a small container, take it out of the freezer, put a small coin on top and put it in the fridge. If you see a dime on top when you return, everything is fine, but if it drops more than a centimeter, it means that the food in the refrigerator has been heated for a very long time and may have spoiled.

During a power outage, food in the freezer can be kept in perfect condition. it all depends on the quality of the insulation, the tightness of the doors, and the presence of cold batteries. Every refrigerator manufacturer tells you how long it takes for the temperature in the freezer compartment to rise to minus 9 degrees (freeze time). For example, the Liebherr SBNes 4265-20 refrigerator, according to the manufacturer, holds freezing temperatures for up to a day. It is worth noting that in the majority of manufacturers, the time of keeping cold is very long and rarely is less than 10 hours (in the category of double-chamber refrigerators).

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In order to know exactly how your appliances work, modern technology is great. Refrigerators have the ability to notify you directly to your smartphone when the temperature in your appliance is high. Of course, if you’re far away, it won’t help save supplies, but at least you’ll be aware of the problem and can protect yourself from spoiled food.

Easy Refrigerator Fix, Reset (Defrost Timer) Switch, if it stops running, cooling or working.

long, does, fridge, keep, cold

If you have a power outage at home, there are several things you can do to conserve your food supply.

The first and most important rule is to keep the refrigerator doors closed. That way your freezer won’t let food thaw, and your refrigerator will stay cooler longer. Opening the door of the freezer and running warm air into it, you should not expect that it will hold the freezing for as long as possible.

For more insulation from heat, the refrigerator or freezer can be covered with a thick blanket or quilt, helping to keep temperatures inside the chamber.

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Judging by the reviews of owners of different types of refrigerators, the most convenient in such an emergency are multi-chamber models with door-to-door compartments, like the LG GC-Q 22 FTBKL black. If an adult can get by for quite a long time without chilled food and drinks, in families with children it is more difficult. But if juices and baby food are in the mini-bar, you can open it without running heat into the main chamber, and quickly get what you need.

Actively rescuing supplies

Of course, if a power outage lasts a long time, you have to take active steps to save at least some of your supplies.

Dairy and dairy products should be placed in glass or, even better, in ceramic containers and placed in the darkest, sun-protected place. For better storage in an extreme situation you can pour cold water, or even better. pour ice, in basins, pots and put dairy products in them (in the glass). It is best to change the water more often, keeping it cold. This method allows you to keep food fresh and safe for up to a day.

For preserving meat and poultry you also need a container of water, but it must be well salted. In this kind of storage, defrosted meat will also remain edible for twenty-four hours.

Fresh eggs can be kept in a cool dry place for a week, so you won’t have any trouble with them.

long, does, fridge, keep, cold

It is better not to wash fruits and vegetables before eating, but they would also be better served in the coolest place possible. Salads and greens can be placed in a jar with water or wrapped in a damp cloth or towel.

Perishable foods and berries will have to be taken out, cooked, and eaten. By the way, if the power outage will not be too long, then after the restoration of power you can put cooked food in the refrigerator. The shelf life of products after heat treatment increases. So you can save your supplies and save yourself a couple of days of cooking.

Foods in industrial packaging (tomato paste, canned goods) often do not require refrigerator storage at all, but still check the recommendations on the label. For example, mayonnaise in a closed jar can be stored at room temperature for 4 months, ketchup. even longer. But in open jars and bottles such food is stored only in cold and significantly less.

Another way to preserve at least some of the products is available to motorists and owners of refrigerators, because they can operate from the car power grid. For example, car refrigerator First 5170 Grey with a capacity of 32 liters is able to keep the cooling chamber at 18 degrees below the ambient temperature, which means it is quite capable of creating optimal conditions for storing even delicate foods. As an alternative, you can use a thermal bag with cold accumulators (just remember that they must be prepared in advance).

Experts recommend throwing away dairy products, meat, fish, soft cheeses, or cooked vegetables if they are stored at 25 degrees or warmer for more than two hours. They become a health hazard and can cause very serious food poisoning.

Plugging in your refrigerator for the first time

When preparing to power your refrigerator for the first time, there are some tips to follow:

  • Often, sellers of equipment advise to buy a surge protector to protect the unit from voltage fluctuations. But if your house has a good outlet with a regular grounding contacts, such a filter is not necessary. By the way, if you have a regular extension cord at home, you can also not buy a surge protector. Modern extension cords have all grounding contacts, and they cost an order of magnitude cheaper than the filter.
  • In case if besides the refrigerator it is planned to connect some more devices simultaneously it is better to use network adapters from possible overload, besides they, as a rule, are equipped with more sockets.
  • If the refrigerator is purchased during the cold period of the year, it is strictly forbidden to plug it in the first 3-4 hours after its delivery to your home. During this time, all the parts of the device will have warmed up sufficiently, any condensation will have evaporated, and you can plug it in safely.
  • When you connect it for the first time, do not fill the refrigerator with food. Allow it to reach the correct idle temperature. This can take approximately 5 to 10 hours. Only then fill the refrigerator with a small amount of food. Your refrigerator should return to normal operation gradually. It will cool down in a few hours, the freezer will have stored enough cold, and the freezer will be ready to run at full capacity.
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Modern freezing devices for the most part are equipped with computer control, all sensors are very sensitive to various changes and fluctuations, and, accordingly, can fail sooner.

Just a reminder. Do not turn off your refrigerator for less than 1 minute. The compressor can jam and then you can’t do without a master!

So, how long should a new refrigerator unit operate before it shuts down for the first time?

This question is very worrying for owners of new devices as well as devices that have recently been repaired or were shut off for a long period. The fact is that the first time it works usually has a dependence on such factors as:

  • Room temperature.
  • The volume of the refrigerator itself.
  • Compressor performance.
  • The amount of food you put in it and its temperature.
  • Refrigerant type and t.п.

On average, this period can be about two hours. If you want to determine the norm of time before the first automatic shutdown of a new refrigerator, it is best to leave it empty, put the temperature regulator in the minimum position and do not open the door until the complete shutdown. Depending on the above factors, the time may vary from 30-40 minutes to 2-3 hours.

What is the duty cycle of the refrigerator when turned on

During operation, the motor cycles on and off. It will turn on when the temperature inside is insufficient. How long the refrigerator should turn off depends on the rate of temperature increase. The ratio of operating time to the total time period is called the operating time factor. The higher it is, the greater the energy consumption of the refrigerator. It should turn on and produce cooling every time the temperature needs to be lowered.

In order to properly set the empty refrigerator, set the parameters of the cycle on and off, you need to set the correct values on the temperature regulator.

Note that motor operation is controlled by the actual temperature inside the tank. If it is loaded with food, it has an additional cooling effect and causes the motor to turn on more seldom. It switches off as soon as the necessary temperature is reached. How long the refrigerator should run is determined by. How quickly it will gain the desired temperature.

In most cases, the value of the cyclic coefficient is about 0.5. In such cases, the time periods when the motor is on and when it is off are approximately the same in duration. And how long the motor will run in a particular case depends on the model features. After what time should the refrigerator turn off depends on the correct observance of operating conditions.

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