Overhaul the common faults of the refrigerator to judge, smell, and ask

Dongguan Yinyin Hardware Products Co., Ltd. is a full-service enterprise that integrates production, sales, service, and after-sales support. We welcome all buyers to negotiate and collaborate with us! As a professional manufacturer specializing in silver contacts (in-mold riveting parts), stamping components, and low-voltage switches (such as wall switches and leakage switches), we focus on "safe electricity, safe switches, and safe electricians." Thank you for your attention and interest! Our commitment is to provide the most comprehensive and reliable power safety services to our customers. The structure of a refrigerator is complex, and the causes of certain failures can vary widely. Through practical experience, it has been proven that using the "look, listen, and ask" method can effectively identify and analyze the root cause of the problem. 1. **Look**: This involves visually inspecting or using instruments to check various parts of the refrigerator. A multimeter can be used to measure the voltage level and check if the motor winding resistance is normal. A megohmmeter can be used to test whether the insulation resistance of the refrigerator is above 2MΩ. If all these indicators are normal, the unit can be powered on for testing. An ammeter can be used to measure the starting and running current. Opening the door allows you to observe the frost formation on the evaporator. If the current values are not within the expected range or the frost is uneven or incomplete, this indicates an issue. A thermometer can be used to check the cooling rate inside the fridge; if it's significantly slower than usual, this is a sign of a problem. Additionally, check for condensation on the capillary tube and drying filter, as well as frost on the compressor suction tube and around the door seal. These signs can help determine if there is a blockage in the refrigeration line, excessive refrigerant, or a faulty capillary tube. Inspect the surface of the refrigeration system piping, especially at the joints, for any oil stains, which may indicate a refrigerant leak. 2. **Listen**: This refers to using your ears to detect any unusual sounds while the refrigerator is running. For example, check if the motor is operating properly, if the compressor makes any strange noises, if there is airflow in the evaporator, and if the starter or thermal protection relay produces abnormal sounds. Unusual sounds such as “taptap” could indicate metal-to-metal contact inside the compressor due to looseness. “Dangdang” might suggest that the internal suspension of the compressor has broken or come loose. If no airflow sound is heard from the evaporator, it may mean the refrigeration system is clogged. 3. **Ask**: This step involves carefully questioning the user about how the refrigerator was transported, its usage environment, and any conditions during operation. Taking detailed notes will help in analyzing the potential fault. Founded in 2005, Dongguan Yinyin Hardware Products Co., Ltd. specializes in a wide range of products including silver contacts, electrical contacts, double composite silver nails, riveted and soldered silver contacts, precision stampings, conductive copper posts, electrical screws, DC/AC pins, copper sleeves, hollow needles, semi-hollow needles, four guides, rivets, silver dots, binding posts, AV copper sleeves, 3F07, 3F05, 215 copper sleeves, and more. The company also produces various products made from silver, copper, iron, aluminum, and non-ferrous metals. Contact Mr. Chen at 13728192869 for more information. Popular search terms include: relay contacts, composite contacts, switch contacts, silver contacts, dual composite contacts, triple composite contacts, shaped contacts, electrical contacts, environmentally friendly contacts, in-mold riveting contacts, silver alloy contacts, rivet contacts, punch-and-rivet integrated contacts, solder contacts, and more. Http://news.chinawj.com.cn Submission:

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Dispersion/Redispersible polymer powder produced by spray-drying special water-based emulsion, mostly based on vinyl acetate and ethylene. It dissolves in water easily and quickly forms emulsion. Dispersion polymer powder gives the mortar higher flexural strength, excellent waterproofing property, improved workability, increased impact and abrasion resistance, durability, weather-ability, better deformability, increased adhesion to a variety substrates, improved wetting of the substrate, higher flexibility, increased impact and abrasion resistance, higher durability and freeze thaw resistance. It is suitable for tile adhesive/tile grouts, skim coat/ wall putty, adhesive and base mortar for EIFS (external insulation finish system), joint filler, decoration mortar, fundamental dry mix mortar, waterproofing membrane/ mortar, flexible waterproofing putty, floor screed and self-leveling compound etc.

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