Reason and treatment of temperature instability of refrigerator

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On the stage of life, the refrigerator is like a silent guardian of the loyal, for us to treasure the fresh and delicious food, carrying the fireworks and warmth of life. However, when the temperature becomes unstable, the food is put on an unknown adventure, either frozen to death or quietly spoiling in the warmth. This small temperature fluctuations, not only affect our daily diet, but also the quality of life and health. So what factors are at work that make refrigerator temperatures so volatile?

(1)、Temperature control device failure

The temperature controller is the refrigerator's brain, which senses temperature changes and directs the compressor. When it breaks down, the refrigerator goes into chaos, like an army that has lost its command.

1. temperature controller contact adhesion

①. Reason

Contact adhesion is usually caused by long-term use of the contact surface oxidation or carbon deposition, the formation of a conductive layer, so that the contact should be broken when still closed. In addition, the voltage instability or frequent start-up of the compressor can also lead to contact overheating adhesion.

②. Treatment

Try turning the thermostat knob a few times between the“Stop” and“Chill” positions to see if you can disconnect the contacts. If not, remove the thermostat and gently sand the contact surface to remove the oxide and carbon deposits. If the contact burned seriously, you need to replace the new thermostat.

2. the temperature control sensor is damaged

①. Reason

Sensor damage is usually due to long-term use of resistance caused by aging. With the increase of use time, the resistance element inside the sensor will gradually age, and its resistance value will change, which can not accurately reflect the temperature inside the refrigerator. In addition, the sensor is installed by a strong impact can also lead to damage.

②. Treatment

The first step is to check the appearance of the sensor for obvious damage or poor contact. If so, a new sensor will be required. If the appearance is normal, you can use a multimeter to detect the resistance value of the sensor and compare it with the normal value. If the resistance value is abnormal, then the sensor damage, need to be replaced.

(2)、The ambient temperature changes greatly

1. reason

In the hot summer sun, the temperature around the refrigerator rises like a lit flame, and the cooling efficiency drops sharply, causing the internal temperature to rise; in the cold winter embrace, a refrigerator placed near a heat source or in a poorly ventilated area will also suffer from poor cooling.

2. treatment

Choosing the ideal habitat for a refrigerator is crucial. In summer, we should place it in a cool, well-ventilated place, away from direct sunlight. At the same time, appropriate increase the gear of the refrigerator, enhance its refrigeration capacity. And in winter, can be appropriate to lower gear, avoid excessive refrigeration, save energy, and let the refrigerator in the warm and stable operation.

(3)、The refrigerator is overcrowded

1. reason

The inside of the refrigerator is packed to the brim, which not only affects the appearance, but also affects the cooling effect. Too much food will block the circulation of cold air, resulting in local temperature rise. The gap between the food is too small, it will affect the uniform distribution of cold air, making some places too low temperature, some places too high temperature.

2. treatment

Rational planning of the internal space of the refrigerator to avoid overcrowding. Store food separately, leaving enough space for cold air to circulate. For perishable food, can be placed in the upper refrigerator, using the principle of cold air sinking to keep fresh.

(4)、The refrigerator door is not well sealed

1. reason

The refrigerator door seal is the key to keeping the internal temperature stable. Seal aging, deformation or stained with dirt, can lead to air leakage, external hot air into the refrigerator, thereby affecting the stability of the internal temperature.

2. treatment

Regularly check the refrigerator door seal is intact, with a soft cloth to wipe clean, remove dirt and oil stains. If found aging or deformation of the seal, can contact the manufacturer to replace the new seal. At the same time, open and close the refrigerator door as gently as possible to avoid damage to the seal caused by excessive force.

(5)、Frost accumulation

A thick layer of frost accumulates inside the freezer after the refrigerator has been in use for some time. These frosts not only take up space, but also affect the cooling effect.

1. reason

The poor thermal conductivity of frost prevents cold air from reaching food, just as putting a thick coat on food prevents cold air from cooling the food in time, causing the temperature to rise.

2. treatment

Defrost the refrigerator regularly and keep the inside of the freezer clean. Special defrosting tools or plastic scrapers can be used to gently scrape off the frost to avoid scratching the inner wall with sharp objects. At the same time, reduce the frequency of opening and closing the refrigerator door, reduce the probability of hot air entering the outside, thereby reducing the occurrence of frost, so that the refrigerator can work easily.

Conclusion

Refrigerator temperature instability, this seemingly insignificant small problem, in fact, like a hidden time bomb in life, related to the freshness and safety of food. By understanding the five causes of temperature control failures, changes in ambient temperature, internal crowding, poor door sealing, and frost accumulation, we can get the refrigerator back on its feet, continue to play an indispensable role in our lives, for our lives to add endless convenience and beauty.