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1.The door is closed because the magnetic door strip of the door has a certain magnetic force, so when the door is opened, a certain tension must be applied to pull it apart, and the door will be automatically closed due to the suction of the magnetic strip when the door is closed. The door should be closed and there should be no obvious gaps.
2.Start-up performance When the power is turned on, the refrigerator can start and enter operation; When the power is cut off, the refrigerator shuts down normally; When starting again, the compressor can start up within one second and operate normally, which indicates that the compressor has good starting performance.
3.Running noise When the compressor is running, the refrigerator will tremble slightly, and the operating noise will be heard, but the noise should not be higher than 45 decibels, that is, in a quiet environment, only a slight hum of the compressor can be heard, and the sound should not be heard at a distance of about one meter from the refrigerator. When touching the box with your hand, there should be no obvious vibration.
4.Lighting situation Open the refrigerator door, the light in the box is on, close the door and the light is off.
5.Refrigeration effect After 5 minutes of starting operation, the compressor and condenser heat up, and the suction pipe is cold. After 30 minutes of operation, open the door of the box, there should be a uniform thin frost on the evaporator, touch the evaporator with your fingers dipped in water, and your fingers should feel "sticky".
6.Thermostat performance Adjust the thermostat to the stopping position, and the compressor should stop immediately; When the compressor is turned to a strong cooling position, the compressor should run non-stop (especially for old-fashioned refrigerators). After the refrigerator runs for a period of time, it should be able to automatically open and stop at a certain time interval, at this time, the temperature of the refrigerator should not be higher than 5, and the temperature of the freezer should reach the star level.
Generally, the number of compressor starts should not be more than 6-9 times per hour.
7.Cooling speed At the ambient temperature of 32 1, close the door when the temperature inside and outside the box is roughly balanced (no food is placed on the door), and the compressor runs continuously. Adjust the thermostat in the refrigerator to the maximum position, and the temperature in the refrigerator room should be reduced to 10 and the freezer temperature to -5 for no more than 2 hours.
In other words, the temperature in the refrigerator should not be higher than 10, and the temperature in the freezer should be -5 or below 2 hours after the refrigerator is started, regardless of whether it is automatically shut down or not.
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First of all, you have to look at its daily power consumption, some of which consume a lot of electricity, so you can't use it!
Again, it's about looking at its volume and choosing the one that suits you.
The function of the refrigerator, as well as the sterilization ability, it is not nanotechnology integrated, there is only one sterilization box, it can not be fully sterilized, and it is unsafe and unhygienic to put food in.
It also depends on its foam layer, that is, the thickness of the door, the foam layer generally adopts the national H566 standard, and the foam layer consumes less electricity.
The second is the seal on the door, whether there is an air bag, and if there is an air bag, it can be conducive to the discharge of gas.
The material of the freezer drawer is generally made of PC eco-friendly materials.
The most important thing is its compressor, the ability of the refrigerator structure to protect it.
The number of refrigeration pipes, the number of refrigeration is fast, saving electricity and reducing the pressure of the compressor.
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The easiest way is to ask what brand the compressor is, open the door of the freezer, see if the refrigeration pipe is a copper pipe (generally located on the right side of the freezer), whether the refrigerator is bent as a whole (the traditional refrigerator is spliced and consists of the left and right sides of the upper top cover and the back version, and the overall bending without the top cover is directly composed of a face plate that connects the left and right sides and the upper top cover, and the back plate is directly bent and the back plate).
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Hello, the inspection standards of refrigerators can refer to the national testing specifications, and there are many testing items.
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Generally, the refrigeration principle of refrigerators on the market is almost the same, and the nuclear materials required for the refrigeration process of a refrigerator are: ammonia, heating elements, heat sinks, evaporators, absorbers, and separators. The refrigeration system of a complete refrigerator is mainly composed of these parts.
The following is mainly an introduction to the working process of the refrigeration system. The evaporator of the refrigerator is installed in the freezer or refrigerator room, the compressor, condenser, and capillary are installed outside the box shell, the evaporator of the air conditioner is installed in the indoor unit, and the compressor, condenser, and capillary are installed in the outdoor unit. Refrigerators use evaporative cooling or gasification to absorb heat to achieve the purpose of refrigeration.
First of all, the throat of the refrigerator is equipped with a refrigerant commercially known as freon: freon, commonly known as refrigerant. The commonly used one is difluorodichloromethane (CCL2F2), which is a colorless, odorless and non-toxic gas with a boiling point of 29.
When the freon is in a gaseous state, it is pressurized by a compressor, and after being pressurized, it flows through the throat to the condenser on the back of the refrigerator, and then condenses into a liquid after dissipating heat with a heat sink (the temperature rises when the substance is compressed). Secondly, the refrigerant liquid has a heat exchange with the cooled object at a low temperature in the evaporator, absorbs the heat of the cooled object and vaporizes, and the low-pressure steam generated is sucked in by the compressor and discharged at high pressure after compression. The high-pressure gaseous refrigerant discharged from the compressor enters the condenser, where it is cooled by cooling water or air at room temperature and condensed into a high-pressure liquid.
When the high-pressure liquid flows through the expansion valve, it throttles and becomes a low-pressure and low-temperature gas-liquid two-phase mixture, which enters the evaporator, in which the liquid refrigerant is evaporated and refrigerated, and the low-pressure steam produced is sucked in by the compressor again, and so on, and continues to circulate. Finally, the vaporized Freon is pressed back into the condenser outside the box by the compressor to dissipate heat, and then turns into a liquid, and so on, pumping the heat energy in the refrigerator to the outside of the box.
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The refrigerator system has an endothermic medium inside it - the refrigerant (refrigerant) freon, which is now replaced by something else. First, the gaseous refrigerant is compressed by the compressor to convert the gaseous refrigerant into liquid, and a large amount of heat is released in the process of transformation, and then it is fed into the condenser tube distributed on the back of the refrigerator, and the liquid refrigerant is throttled through the capillary tube (expansion valve) of the refrigerator and begins to vaporize, absorbing the heat in the refrigerator evaporator (freezer room) and the heat of the food in the freezer room. The compressor then compresses them into a liquid and circulates them continuously to freeze and refrigerate the food.
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There's nothing else but snow flowing through the coil. Because the evaporation temperature of the refrigerant is low, it evaporates in the refrigerator and takes away a lot of heat to achieve the effect of freezing! The evaporation temperature of R12 is; The evaporation temperature of R22 is Now you know why refrigerators can freeze food! ~
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The upper layer is a quick-freezing room (cold source) to put meat, which is required to be below zero; The lower layer is the refrigerator room, the upper compartment is about 0 degrees, the middle layer is the vegetables, and the lower layer is fruit.
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Refrigerate the meat, freeze it quickly, put fruits and vegetables in the middle, and put the fish in the lower layer.
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The upper blast freezer room is for meat and fish, and the middle layer is for vegetables, and the lower layer is for fruits
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Causes: Inappropriate adjustment of the temperature controller, backward placement of food in the refrigerator, abnormal thermostat, frosting process.
Specific analysis: 1. The gear adjustment of the refrigerator room thermostat is not suitable, and the larger the number of the current thermostat, the lower the temperature.
2. The food in the refrigeration room is placed at the back, close to the inner tank of the back, because the current condenser is on both sides, and the refrigeration pipeline in the back will cause freezing.
3. The thermostat is abnormal, and it cannot accurately sense the change in temperature.
4. The more serious thing is that the refrigeration pipeline on the back is too close to the inner tank, which causes freezing.
5. Frosting process. In summer, the ambient temperature is high, and the temperature of the refrigerator is very low, open the refrigerator frequently, so that there is an obvious temperature difference between the inside and outside of the refrigerator, and the water vapor in the environment is suddenly cold in the refrigerator freezer, condensing into frost, if not treated in time, it will form a thick layer of ice over time.
Avoid water accumulation in the refrigerator freezer method:
1. When you use a refrigerator, you need to defrost it frequently, which is also a measure to save electricity.
2. Adjust the water receiving funnel and align it with the position of the receiving tray.
3. The temperature in the refrigerator should not be adjusted below 0 °C, usually 2-6 °C is appropriate, so as to prevent the water from freezing.
4. When refrigerating beverages, they should be handled gently, and the plastic container with the bottle cap should be placed on the food shelf of the door leaf, and if it is placed on the food shelf, the bottle cap should be tightened to prevent the liquid from flowing out.
5. When using the refrigerator, it is an important task to open and close the door tightly, and it is necessary to be careful to prevent cold; If the sealing strip is found to be damaged, it should be repaired in time; It is also required to pay attention to whether there is dirt on the door edge and adhesive strip at all times, and if found, wipe it off immediately.
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Hello! For such a situation, it is caused by the condensation in your refrigerator not being drained out! There is a small hole in the freezer compartment of your refrigerator、You can poke it down with a soft wire about a meter!
Open the back of the refrigerator with a few small screws, you can see the water pipe, the condensate of the water pipe will flow into the water tray above the compressor, and the water will evaporate when the compressor is working hot!
Freezing does not need to be drained, but it is necessary to de-ice regularly, and if the usage rate is relatively high, it is recommended that you remove it once a month.
Hope it helps
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Newly bought? Could it be that there is no adjustment?,Shouldn't there be a 0-5 number on the refrigerated top?,Adjust one yourself.,My home is 3.
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The freezer compartment is covered with frost, blocking the entry of cold air.
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Broken fridge? If that's the case, report it for repair.
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Relieves heat and mediates stress. It's as simple as that
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Maybe the cooler is broken, and hit ** to get people to repair it.
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It seems that there is a fan in the refrigerator, if it is broken, the freezer will not be cold, I have repaired a refrigerator like this, that is, the fan in the freezer room below is not cold, you can see if it feels like there will be cold air when you open the refrigerator door before, but now it is gone.
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Hello, thank you for asking the company.
The refrigeration system leaks, the refrigerant is gone, although the compressor is running, but there is no refrigerant evaporation and heat absorption in the system, so the temperature in the refrigerator does not drop, find someone to come to the door to overhaul it.
You are welcome to ask the company questions again.
We wish you a happy work life
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Lack of fluorine or clogged pipes (or walls too close).
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If the compressor rotates, it is a lack of fluorine, and if it does not rotate, there is a problem with the electronic control part, such as temperature control switches, temperature probes, pipeline ice gambling, etc.
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Yours is a computer refrigerator, if the freezer is not cooled, he will use the form of an alarm to remind you that the temperature is out of his display range, for a number of reasons.
First, there is a problem with the main control board.
Second, there is a problem with the solenoid valve, because the solenoid valve controls the refrigeration of the refrigerator and the refrigeration of the refrigerator is short of refrigerant.
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This is the drainage hole, and if it is blocked, the water in the refrigerator will flow out of the door and onto the ground, so this small hole must be clear. The condensate from the refrigeration chamber flows to the tray above the lower press, where the heat generated by the press evaporates it. The small stick is a plug that prevents larger booties from leaking into the sewer pipe, causing blockages, because it also has a small tail that can act as a dredging tool.
If there's dirt in it, you can find a piece of wire and just run it through.
To put it simply: small hole: cold room drain. Because the cold room may freeze near the evaporator, and the ice will melt during the shutdown period of the refrigerator's operating cycle, this hole is designed to drain condensate and ice water, etc., and the water is discharged to the water tray at the compressor, which will evaporate according to the temperature of the compressor when the compressor is working.
Stick: It is actually a shelter for the drain of the refrigerator room, which is something that allows water to flow in and prevent foreign objects from falling in.
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This is the diversion pipe that removes the moisture from the inside of the refrigerator, and it cannot be blocked, otherwise the water will flow to the refrigerator door.
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At the outlet, the condensate flows down the small stick to the tray below.
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The normal one is leaky. Dirty should be cleaned up.
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The quick-freezing switch in the refrigerator is used when the freezer compartment of the refrigerator is used to put the items that need to be quick-frozen.
After turning on this switch, the compressor will continue to run without stopping, and the items in the freezer can be frozen in a short period of time, and the switch should be reset in time after the items that need to be quick-frozen are frozen, because the switch should not be turned on for a long time, and if it is turned on for a long time, it will have a serious impact on the service life of the refrigerator.
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There is a problem with the insulation of the refrigerator door or the door seal on the refrigerator door is poorly sealed.
Under normal conditions, the outer surface of the refrigerator will not produce water droplets during use, which is equivalent to touching the outer surface of the refrigerator frozen door at work with your hands, and the temperature will not be very low.
If some parts of the refrigerator freezing door body are poorly sealed or damaged, in the process of long-term use, too much water vapor and water will enter the door body insulation layer, resulting in the poor thermal insulation effect of the door body, and the cold volume inside the refrigerator freezer compartment is transmitted to the outside side of the door body along the water ice metal shell in the refrigerator door body, and the water vapor in the air around the door body condenses into water droplets on the outer surface of the door body. If the door seal of the refrigerator freezer door body is deformed and poorly sealed, the cold air in the freezer room leaks out, and the cold energy is transferred to the metal shell of the refrigerator door body, which will also cause condensation to appear on the outer surface of the refrigerator door.
When the condensation on the outer surface of the refrigerator door is more serious, it is recommended to report to the refrigerator manufacturer for after-sales repair, and ask the maintenance personnel to repair the cause of condensation on site, replace the door body or repair the door seal.
Hello! The refrigerant is sucked in by the compressor in the form of gaseous, compressed into a high-temperature and high-pressure vapor into the condenser through the exhaust pipe, and the refrigerant dissipates heat into the outside air, condenses into a high-pressure liquid, enters the capillary through the filter, and is intercepted and depressurized into the evaporator for vaporization. The refrigerant liquid absorbs external heat and vaporizes into dry saturated steam to cool down the refrigerator, and the refrigerant becomes low-pressure superheated vapor and is sucked back by the compressor, and so on.
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