The reason why the refrigerator does not cool
Cold and heat are relative. When two objects with different temperatures contact, heat transfer will occur. Generally, heat is transferred from an object with a high temperature to an object with a low temperature. If you want to cool, you need to use a special device to let the heat from a low temperature object. The object is transmitted to the object with high temperature, thereby obtaining the low temperature that people need. This is the principle of refrigeration.
Refrigerator refrigeration requires a refrigeration system. Due to the different energy consumption of the refrigeration system, the refrigeration forms of the refrigeration systems used are also different. There are motor-driven vapor compression refrigeration systems, as well as complex piston type, rotary compression type, and electromagnetic oscillation compression type. If the refrigeration system of the refrigerator is damaged, it cannot be cooled. This is the direct cause of the refrigerator not cooling.
Once the refrigerator is found to be faulty, you can first check the refrigeration system to ensure that there is no abnormality in the refrigeration system. Then, check whether the refrigerant in the refrigeration system is used up, because once the refrigerant is exhausted, it will not be effective. Generally, the refrigerant used in most refrigerators on the market is Freon. In addition, damage to the thermostat and poor power contact are all reasons why the refrigerator does not cool.
Refrigerator does not refrigerate Compressor gets hot At present, most refrigerators on the market use fully enclosed refrigeration compressors, some from domestic and some from abroad, and there are certain conditions of use. If they exceed the range, the operation reliability of the machine will be reduced, and the efficiency and life will also be Decline, therefore, the refrigerator will not cool. What if the refrigerator does not cool and the compressor gets hot again?
First of all, you can't continue to use it, you should cut off the power, take out all the food in the refrigerator, and clean the inside and outside of the refrigerator.
Secondly, find a professional maintenance person to repair the compressor, because disassembling the refrigerator is a tedious task, and if you do not have professional knowledge, it is easy to dismantle.
Thirdly, according to the damage degree of the refrigerator compressor and the suggestions of the maintenance personnel, consider whether to replace the new compressor, otherwise a similar failure may occur even after the repair.
Finally, after the compressor is repaired, let the maintenance personnel install the removed parts according to the correct method, and then try the machine once again, and then settle it if there is no problem.
Refrigerator refrigerant loss If the refrigerator does not refrigerate, the cause may be the loss of refrigerant, resulting in poor cooling effect. After investigation, it was found that the cause was it, and it must be dealt with in a timely manner. What should I do if the refrigerant leaks from the refrigerator? How to add refrigerator refrigerant?
Refrigerator refrigerant loss treatment
When encountering refrigerant leakage in the refrigerator, Freon in the refrigerator will continue to decrease, resulting in insufficient liquid supply in the evaporator. As a result, the refrigeration capacity of the refrigerator is too small, and the cooling rate is too slow. The refrigerator cannot make a lower temperature. The refrigeration system It is also affected. In this case, the missing parts should be repaired, repaired, or replaced.
Refrigerant addition process
Freon is a commonly used refrigerator refrigerant. When adding, firstly, the fluoride port should be cut open to release all the gas. Then, the tube with the pressure gauge inserted into the process port and welded with water welding. Then close the triangle valve to prevent excessive moisture in the air, and continue to draw air to keep the rubber tube in a vacuum state. The air is mainly used by the compressor, remember to carry out when the refrigerator is stopped. After exhausting the air, close the valve to maintain pressure and observe, and finally add refrigerant.
The refrigerator temperature controller is not damaged A temperature controller commonly used in refrigerators is a temperature-sensing bladder-type temperature controller, which is related to the temperature regulation and control in the refrigerator. If the temperature is high and there is insufficient cooling, it may be caused by the damage of the temperature controller. Therefore, sometimes the refrigerator does not cool, and the cooling system is not necessarily broken. What if the refrigerator temperature controller is damaged?
First, to determine whether the refrigerator thermostat is damaged, it can be tested by adjustment. Usually, the refrigerator thermostat has 7 gears. The higher the gear, the lower the temperature and the greater the power consumption. If after adjustment, the refrigerator can quickly cool in a short time, it proves that the thermostat is normal, otherwise it proves that the thermostat is damaged.
Second, if the thermostat is damaged, you should find a professional to replace it, do not replace it yourself, because once the refrigerator is damaged, the maintenance cost is higher. It is recommended to find maintenance personnel for after-sales service of electrical appliances. Their maintenance experience is rich.
Thirdly, after the thermostat is repaired, adjust the temperature of the refrigerator compartment to the minimum, test the effect, and if it is normal, adjust it back again. As long as it is not adjusted frequently, the problem is not significant. After confirming the repair, you can start to use again.
Precautions for refrigerator maintenance When the refrigerator is no longer refrigerated, it is equivalent to being unusable, because its function mainly depends on refrigeration. Although many people understand the cause of the failure when it occurs, they do not know how to repair it. In the maintenance process, there are still many details to pay attention to. The following are the precautions for refrigerator maintenance:
1. If the high-pressure buffer tube in the compressor is broken, you can clearly hear the sound of air flow in the casing, which can be used to determine the cause of the failure, and then disassemble it, and repair the high-pressure buffer tube.
2. If the capillary produces oil clogging and the refrigerator is not cooled, the oil stains can be cleaned up so that the fault can be eliminated.
3. If the evaporator and condenser pipes are thick, the gap during welding is too large, and there are leftovers, which cause the refrigerator refrigeration system to work abnormally. You need to remove the tube, remove the leftovers in the tube, and then re-weld.
4. The refrigerator cannot be cooled. During the disassembly process, you must remember the location of the parts, otherwise, it will be a troublesome thing to not install it after disassembly.
5. Do not disassemble the refrigerator by yourself before it is determined that the internal damage caused the failure. Otherwise, the parts will be damaged, which will cause greater trouble.
Subscribe to relevant news content?
Subscription
Unsubscription
Recent related posts
01/15/2021
The reason why the refrigerator does not cool
[Introduction] The temperature of the refrigerator is low and it is mainly used to refrigerate food. It has a refrigerated box and a refrigerated freezer inside. Among them, there are one or more refrigerated boxes, and there is only one freezer. The temp 器2 䀀 ￜ皥 䖒皦즠Ʋ㉄ᰙ 㲈Ʋ 䌁皦 ᮔDž༬皧㉎ᰙЀ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐珵Љ 䕄ྦ 뤂ᐱ뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់ᩄ ꋔྦ 瑉浥 巠皱㙲皦抐皱 巠皱 ੨皦柘皱 ￜ皥 ب 巠皱㙲皦忈皱
01/15/2021
How to clean the air conditioner
Cleaning the external unit of the air conditioner is conducive to improving the operating efficiency of the air conditioner and extending the service life. How to clean the air conditioner external machine, what problems should be paid attention to when c 器2 䀀 ￜ皥 䖒皦즠Ʋ奌ི 㲈Ʋ 䌁皦
01/15/2021
Dafoss high-pressure
High pressure Compressor Compressor discharge pipe too hot Probable bellows leak in KVC capacity regulator. Solution Slowly loosen protective cap. If pressure or traces of refrigerant exist under the cap,there is a leak in the bellows.Replace val
01/15/2021
dafoss low-pressure
Differential setting on low pressure control too low. Solution: Area Low pressure System Part Compressor Symptom Compressor running time too short Potential Cause Differential setting on low pressure contol too low. Solution Increase the differ 器2 䀀
01/15/2021
Danfoss extends its Turbocor® training and support resources with 12 new e-lessons
Danfoss has released new online training materials for technicians working with its Turbocor® oil-free compressors—further extending the support and learning resources to help users and OEMs maintain long-lasting performance.
01/15/2021
Covid-19Taking precautions to keep the business running.
Covid-19Taking precautions to keep the business running. As the world steps up to the challenge of controlling the Covid19 virus, we are maintaining an unwavering commitment for safety as colleagues everywhere are keeping our operations and business goin 器2 䀀 ￜ皥 䖒皦즠Ʋ奌ི 㲈Ʋ 䌁皦 ᮔDž༬皧奖ིЀ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐珵Љ 䕄ྦ 뤂ᐱ뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់ᩄ ꋔྦ 瑉浥
01/15/2021
Working principle of air conditioning sensor_The role of air conditioning sensor
Air conditioning sensors are also called temperature sensors. The main function in air conditioning is to detect the temperature of various parts of the air conditioner. There are more than one air conditioning sensors in the air conditioner, and they are 器2 䀀 ￜ皥 䖒皦즠Ʋ㉄ᰙ 㲈Ʋ 䌁皦 ᮔDž༬皧㉎ᰙЀ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐珵Љ 䕄ྦ 뤂ᐱ뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់ᩄ ꋔྦ 瑉浥 巠皱㙲皦抐皱 巠皱 ੨皦柘皱 ￜ皥 ب 巠皱㙲皦忈皱 ੨皦柘皱 즠Ʋǜ 勁皦즠Ʋب ǜ V / 펔B䌁皦 ᮔDž '鱤džၜ먢䇨珵呈ᠾ뤂ᐱ ⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲ ᠾ 랖僧Ԣ 識 �僬㣢ᐲ 臆S㥲ᐲ ᬄğ 識 理艏S杴 識杴 㥲ᐲ
01/15/2021
The working environment of the air conditioner and the refrigerator freezer is different
The working environment of the air conditioner and the refrigerator freezer is different, which causes inconsistency in the variety of refrigerant used, and also affects the structure of the compressor.
01/15/2021
Operation process of automobile air-conditioning refrigeration system and the role of pressure switch
Operation process of automobile air-conditioning refrigeration system and the role of pressure switch From top to bottom, automobile air conditioners are mainly composed of blowers, evaporators, pressure switches, dryers, expansion valves, condensers, 器2 䀀 ￜ皥 䖒皦즠Ʋ㉄ᰙ 㲈Ʋ 䌁皦 ᮔDž༬皧㉎ᰙЀ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐
01/14/2021
Is the core technology of air conditioning monopolized by Japan
Is the core technology of air conditioning monopolized by Japan Household air-conditioning compressors are not dominated by Japanese manufacturers. The range of Japanese compressors with a high share is the large-capacity variable-frequency inverter r 器2 䀀 ￜ皥 䖒皦즠Ʋ奌ི 㲈Ʋ 䌁皦 ᮔDž༬皧奖ིЀ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐珵Љ 䕄ྦ 뤂ᐱ뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់ᩄ ꋔྦ 瑉浥 巠皱㙲皦抐皱 巠皱 ੨皦柘皱 ￜ皥 ب 巠皱㙲皦忈皱 ੨皦柘皱 즠Ʋǜ 勁皦즠Ʋب
Customers frequently viewed
IWAYA DENKI Water Pump 25CJT0752
US$2307.69
Panasonic Servo Motor MHMF022L1V2M
US$653.85
Honeywell Solenoid Valve VE4025B1045
US$334.62
ROTEN Mechanical Seal 8E5K-22-X
US$384.62
Honeywell Switch SZL-WLC-G
US$103.85
PIZZATO Switch FM 1002-M2R23
US$576.92
DAIKIN Vane Pump V38ARX-95
US$1269.23
IFM Sensor PI2796
US$1076.92