How to solve the problem of overcooling when repairing a wine cabinet

How to solve the problem of overcooling when repairing a wine cabinet

In most cases, for cabinets with a freshness preservation function, the main fault is excessive temperature. However, there are also special cases. For example, Junhong Electric Co., Ltd. encountered a customer's wine cabinet that was too cold. If the temperature of the wine cabinet is too low, it will cause frost on the surface of the red wine. Therefore, if you find such problems, you should immediately entrust professionals to solve them. Next, I will share the specific maintenance process.

Although it is uncommon for a wine cooler to overcool, repairs are not complicated. After arriving at the customer's hotel, the maintenance personnel first inspected the appearance of the wine cabinet to ensure that the door of the wine cabinet was well sealed and no air-conditioning leakage was found. Then use a thermometer to measure the actual temperature in the cabinet. After the measurement, it was found that the temperature was as low as 2℃, which was obviously lower than the set normal storage temperature (about 12℃-16℃). Next, the maintenance personnel cut off the power to the red wine cabinet and ensured that the wine After all the red wine and other items in the cabinet were taken out, in-depth maintenance was carried out.

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After the wine cooler is powered off and the tools are ready, the maintenance personnel first check the settings of the thermostat to confirm whether it is working properly. By using a multimeter to measure the resistance of the thermostat, it was found that the resistance value was unstable. The maintenance personnel speculated that this may cause the thermostat to be unable to adjust the temperature correctly. Then the maintenance personnel opened the back of the wine cabinet and checked the refrigeration system. They found that the compressor was running normally, but there was thick frost on the surface of the evaporator, which would hinder the normal refrigeration cycle. At the same time, the maintenance personnel also checked the cooling fan. At this time, it was found that the fan was running normally, but the cold air circulation was not smooth due to severe frost on the evaporator, which further aggravated the overcooling phenomenon in the cabinet. At this time, it was basically determined that the thermostat was faulty, and then the maintenance personnel replaced the original one. Thermostat, and then re-energizing solved the problem of overcooling of the wine cabinet.

What I have shared above is how to deal with the problem of overcooling of a wine cabinet. Usually, the fault of a wine cabinet is caused by the temperature being too high. For cases where the temperature is too low, the main thing is to check the thermostat and compressor. In this way, the cause can be basically determined and repairs can be carried out in a targeted manner.