The door seal of the freezer is the first barrier to maintain the low temperature in the cabinet, and its sealing directly affects the energy consumption and cooling effect.The A4 paper clip test method can be used for self-inspection of the door seal: clamp the paper at any position of the door seal, and gently pull the paper after closing the cabinet door. If you feel obvious resistance and the paper is not drawn out, it means that the point is well sealed; If the paper slides out easily or falls by itself, the seal here has been aged and deformed.In addition, after turning off the lights at night, illuminate the cabinet with a flashlight to observe whether there is light from the outside, which is also a traditional and effective means of detection.

The aging of door seals is mainly manifested as decreased magnetism, hardening and cracking of rubber, or partial collapse.To restore the sealing, you can first use a hair dryer to heat the hot air file evenly ten centimeters away from the seal, and at the same time smooth the collapsed area by hand, and reset the shape after cooling.If the magnetic strip is broken, you need to remove the seal jacket, take out the internal magnetic stripe and replace it separately. The magnetic stripe has no positive or negative, and you can wear it back according to the original path.When the whole set of seals is replaced, the door body should be removed and placed flat, the pressure strips embedded in the four corners should be pry open, and the old seals should be drawn out. The new seals should be soaked in warm water and softened and embedded in the groove, gradually compacted from one corner.

The after-sales department of enterprises often receives reports of poor refrigeration effect for repair, about 30% of which are due to air leakage from the door seal.Users check once a month according to the above self-inspection steps, which can prevent accidents before they happen.Door seals are consumables for freezers, which are available in regular channels, and the sizes vary greatly between different brands. Be sure to provide the freezer model when purchasing.The small rubber strip guards a cabinet of air conditioners, which is also the operating cost.