&Shanghai r ultra-low temperature refrigerator after-sales maintenance phone number: Dear r user, no matter what your needs are, as long as you call our hourly unified service hotline, we 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!
. After 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 personnel!
r 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 results in damage to the stored objects, which has a great impact on the experimental results. , thus affecting the normal conduct of research work.
． Clean 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 and rinse with pure water after cleaning. 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, you can usually check 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 out of the appropriate range. In this case, placing objects will cause the refrigerator to heat up and trigger 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. If the refrigerator is unstable, adjust the movable screws so that the four corners are firmly supported on the base plate. Check 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 refrigerant defects. 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 excellent working condition.
Company features:
Quick maintenance of compressors, complete refrigerant and circuit accessories. The company prepares multiple service vehicles and rushes to the scene with accessories (compressor refrigerant circuit accessories) and tools. Repair the machine as quickly as possible.
． Customers can entrust our company to carry out follow-up maintenance and professional maintenance on time, truly giving you no worries. (Click the commission maintenance button for details)
． After installing the remote alarm system, you can enter the mobile phone number of our engineer, so that we can detect machine faults as soon as possible and arrange for engineers to troubleshoot the problem nearby.
The main products are:
℃, ℃, ℃ and other series of ultra-low temperature refrigerators (rrrr) (also known as ultra-low temperature freezers, ultra-low temperature preservation boxes, ultra-low temperature experimental chambers, ultra-low temperature freezers, medical low-temperature refrigerators, medical low-temperature preservation boxes wait).
Shanghai r ultra-low temperature refrigerator after-sales maintenance phone number:
The main operating company is an agent for many domestic and foreign instruments and equipment. It is a large comprehensive company that integrates sales and after-sales. The brands we represent include: Ebende, Sigma, Soft, Beckman Heraeus, Hitachi Sanyo, Zhongke Meiling, Haier, etc. Dear user, no matter what your needs are, as long as you call our service hotline, we will take care of the rest.
Shanghai Thermo Fisher ultra-low temperature medical refrigerator repair hotline