超低温冰柜是日本三洋公司生产的 ,它具有超低温冷藏的功能 ,能够在超低温下保存人的头盖骨、植皮、血浆、药品等等 ,在各大中医院检验科、病理科应用广泛。故障现象　制冷在 - 15℃左右 ,达不到设定温度 ,不能控制在 - 40℃以下。故障分析与排除　该机器是 1984年生产的 ,使用 The ultra-low temperature freezer is manufactured by Sanyo Corporation of Japan. It has the function of ultra-low temperature refrigeration and can store human skulls, skin grafts, plasma, medicines, etc. at ultra-low temperatures. It is widely used in major clinical hospitals and pathology departments. Fault phenomenon The cooling temperature is about -15°C, and it cannot reach the set temperature. It cannot be controlled below -40°C. Fault analysis and exclusion The machine was produced in 1984 and used