What happened to the huge power consumption of the old refrigerator?

I suggest you replace it. I estimate that this refrigerator is about 2000 products.

Let me tell you again why the old refrigerator consumes a lot of electricity. First of all, the early refrigerants in refrigerators were basically R 12 refrigerants, that is, Freon refrigerants. Good refrigeration effect, but high energy consumption. Secondly, the previous compressors were basically piston reciprocating compressors. If the compressor is used for a long time, the friction coefficient in the cylinder will increase, the noise will increase, and the energy efficiency and service life will be shortened. Third, the reason for the refrigerator door seal. The door seal of the old refrigerator is basically fixed and cannot be disassembled and cleaned. Most of the materials used are ordinary domestic rubber or ethylene mixed door seals, which are easy to age. After aging, the cold air in the refrigerator is easy to lose and the relative power consumption is high.

I suggest you change the refrigerator. Buy domestic Meiling refrigerator. Meiling has been specializing in refrigeration for 26 years, and now the minimum power consumption is 0.27 degrees /24 hours. Foreign brands buy Siemens. Siemens is a German-owned brand, and all materials are purchased globally, regardless of high-end models or low-end models, they are all the same materials. However, the lowest power consumption of Siemens is also 0.48 degrees /24 hours. Why? Because the environmental temperature when domestic brands test the power consumption of refrigerators is 25 degrees Celsius, while the international standard used by Siemens is 32 degrees Celsius. High ambient temperature will also affect the power consumption of the refrigerator. Choose for yourself!