Shanghai SANYO ultra-low temperature refrigerator repair [medical freezer specialization]

&Shanghai Sanyo hourly customer service hotline: Dear Sanyo users, no matter what your needs are, as long as you call our hourly unified service hotline, Sanyo will do the rest
. Our customer service representatives will provide you with professional consultation and answers!
. We will arrange excellent service engineers from the nearest maintenance outlets to come to your door on time at the time you agreed!
. While providing high-quality services, engineers will explain the working principle and operation process of the product to you in detail!
. At the end of the service, the engineer will take the initiative to explain the common sense of product use to you and guide you in its use!
. Your service information will be fed back to the customer service center simultaneously, and we will arrange regular return visits by customer service staff!
Is it normal for the Sanyo refrigerator to make a "squeaking" sound when it is running? Sanyo low-temperature refrigerator can achieve cooling by relying on the refrigerant in the refrigerator. When the Sanyo low-temperature refrigerator is cooling, the refrigerant is in a liquid state and circulates in the evaporator pipe. At this time, it will make a sound similar to "running water". When the refrigerator stops working, the refrigerant will flow back and a sound like running water will be made continuously or intermittently. This is a normal phenomenon and can be used with confidence.
How to solve the problem of air-conditioning leakage in Sanyo ultra-low temperature refrigerator
How to prevent the air-conditioning leakage in Sanyo refrigerator?
After the Sanyo ultra-low temperature refrigerator has been used for a long time, due to the aging and deformation of the magnetic sealing strip on the door, the cold air in the refrigerator leaks out, reducing the cooling effect. The method of inspection is to turn on the flashlight and put it into the Sanyo ultra-low temperature refrigerator, close the door, and carefully observe whether there are any gaps around the refrigerator that leak light. If you use washing powder and water, clean the sealing strip and peel off the sealing strip at the light leakage area. , insert a piece of sealing tape, put the sealing strip as it is, and then check whether there is still light leakage. Check the patch repeatedly in this way until there is no light leakage.
Engineers have been committed to the research and practice of ultra-low temperature. At first, we only focused on ultra-low temperature refrigerators. There were few low-temperature refrigerators at that time, foreign after-sales work could not keep up, and there were very few domestic maintenance companies. We originally established based on the current situation. Low-temperature refrigeration technology service company, which is relatively early in China, has cooperated with many teaching and scientific research units in Beijing on the maintenance of low-temperature refrigerators, such as the 301st Union Hospital, Tongren Hospital, Chinese Academy of Sciences, Institute of Basic Medicine, Peking University and other units Most of the low-temperature refrigerators are repaired and maintained by our company. We cooperate with American and Japanese sales companies in Beijing as their after-sales service company, so we have accumulated a lot of technical experience. Now, as an ultra-low temperature technical service company, we are not only limited to the repair of ultra-low temperature refrigerators, but also repair a lot of low-temperature centrifuges, freeze dryers, cold wells, etc. We have mastered the most advanced refrigerants and technologies. All low-temperature equipment technologies are similar. It is not only limited to the repair technology of the above three well-known brands of refrigerators, but also has a good understanding of a few domestic brands such as: The stability reaches .℃, providing the laboratory with a constant temperature environment required for cell culture and stability testing. Through program control of temperature, humidity, and light, the Sanyo plant incubator can fully simulate the environment required for plant cell growth. It is an essential instrument for plant life engineering laboratories. In terms of accessories, because foreign manufacturers do not allow unreasonable import of accessories (for fear of us saving machines), after the machine is damaged, the old machine must be replaced with a new one. Therefore, we found scrapped machines through various channels and exchanged them for many new machines, so we have spare parts Sufficient, generally not used for three months. The refrigerant types are complete and sufficient, including R and so on. As for tools, we use professional repair tools. The combined fluoride pipe imported from the United States alone is worth more than 2,000 yuan. Only high-quality tools can match superb technology.
Sanyo ultra-low temperature refrigerator maintenance:
&Ultra-low temperature refrigerator equipment has high maintenance costs due to the scarcity of refrigeration working fluids, high prices, complex equipment structures, and high maintenance costs. Ultra-low temperature refrigerators are frequently damaged, mostly due to improper use and maintenance. Summer is coming and equipment failures are high. In order to ensure the normal operation of ultra-low temperature refrigerators and prevent equipment damage, it is recommended to pay attention to the following points:
Ensure the ambient temperature. The working environment temperature of the ultra-low temperature refrigerator must be below &C, and the surrounding area must be well ventilated. Excessive temperature or poor ventilation can easily cause equipment to be overloaded and damaged.
Clean the cooling filter regularly (once every two months). If the filter is not cleaned for a long time, dust will clog the mesh, resulting in poor heat dissipation, damage to the cooling motor, and then damage to the compressor. Please refer to the instruction manual for cleaning instructions.
Regularly clean the ice on the refrigerator door seal. If the door seal is not tight, the thermal insulation effect will be seriously reduced, which may easily cause damage to the compressor due to long-term overload operation.
Sanyo ultra-low temperature refrigerator warranty knowledge:
& The maintenance and upkeep of ultra-low temperature refrigerators is particularly important to extend its life and normal use. Inaccurate temperature control often leads to damage to the stored objects, which has a great impact on the experimental results. influence, thereby affecting the normal conduct of research work.
&． Clean it once a month to ensure its cleanliness
Use a dry cloth to remove a small amount of dust on the inside, outside and accessories of the refrigerator. If the refrigerator is too dirty, use a neutral detergent. After cleaning, rinse thoroughly with pure water. However, do not flush the inside or upper part of the refrigerator, otherwise it will damage the insulation material and cause malfunction. The compressor and other mechanical parts do not require the use of lubricating oil. Be careful when cleaning the fan behind the compressor. After cleaning, perform a safety check to ensure that the plug of the refrigerator is plugged in properly and not empty. Make sure that the plug does not become abnormally hot. Make sure that the power cord and distribution cord on the back of the refrigerator are not cracked or scored.
． Siren starts alarm
&When encountering siren starts alarm, it can usually be checked through the following aspects.
&First, check whether there is a problem with the power supply or whether the plug has been pulled out of the socket
&Second, check whether the internal thermometer is outside the appropriate range. In this case, placing items will cause the refrigerator to heat up. And trigger the alarm
&Third, check whether too many items are placed at one time.
． Insufficient cooling of the refrigerator:
&Check whether there is frost on the surface of the evaporator. Whether the refrigerator door opens and closes too frequently. Whether the back of the refrigerator is in contact with the wall and whether there are too many items placed there.
． The refrigerator is too noisy:
&Check whether the base plate is solid and whether the refrigerator is stable. If not, adjust the movable screws so that the four corners are firmly supported on the base plate and whether there are any objects touching the back of the refrigerator.
&If the cooling effect is poor, the refrigerator does not stop, the heat pipe is not hot, and the evaporator makes a small air flow sound, these are caused by slow leakage causing serious damage to the refrigerant. In the actual use process, many other problems will be encountered. The solutions to such problems require continuous accumulation of experience to eliminate obstacles and make the ultra-low temperature refrigerator reach the best working condition.
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