What is a refrigerator thermostat
Thermostat, as the name suggests, is an instrument that controls temperature. Like a general double-decker refrigerator, it is usually a freezer room below and a refrigerator room above. Because the cold room will put some fruits and vegetables, it is designed on the upper floor to facilitate people's frequent access. In the upper refrigerator, there is a round knob (usually near the refrigerator lamp), which will be marked with numbers, indicating different temperature standards in order. Common 0~7 or 0~5 gears, the larger the number, the stronger the cooling effect, which is why it will be adjusted to a higher grade in winter and a low grade in summer.
The working principle of the refrigerator thermostat
The main function of the refrigerator thermostat is to maintain the temperature in the refrigerator within a certain range to ensure that the power consumption is saved in the case of fresh food. Each gear of the thermostat sets a temperature standard and provides feedback by sensing the temperature in the refrigerator. Thus maintaining the temperature. For example, a refrigerator using a certain refrigerant, due to the characteristics of the refrigerant, low boiling point, easy to expand when heated, so when the temperature in the refrigerator rises, the refrigerant expands, and when the temperature rises to a certain extent, the expanded refrigerant will push the closure of a certain contact, prompting the compressor to work, the refrigerator begins to refrigerate, the temperature begins to drop again, the refrigerant shrinks, the contact is disconnected, and the compressor stops working. In this way, the temperature in the refrigerator can be maintained at a certain value and the purpose of saving electricity can be achieved.
The cause and solution of the refrigerator thermostat is broken
If the compressor has been working or has been in a state of shutdown, it may be that the thermostat is broken, in this case, can we do the guarantee?
First of all, we need to find the gear on the thermostat dial that indicates that the compressor does not stop (0~7 gears, generally 567 is forced cold gear, that is, non-stop gear), if you are not sure, you can check it from the manual.
First, when we adjust the knob to the non-stop gear, the compressor works, and when we adjust to any other gear, the compressor does not work, it may be that the refrigerant in the temperature pack has leaked, and removing the test and re-adding the refrigerant can solve the problem.
Second, if the compressor has been working, the thermostat is adjusted to the set gear, and the compressor still does not stop as the temperature rises, it may be that the contacts have been bonded and cannot be disconnected. Therefore, after disassembling, find the contact so that it can be opened and closed normally.
Third, there are other reasons that will make the compressor work or stop all the time. If the specific cause cannot be found, the relevant parts can be removed for cleaning and lubrication.
The above operations hope that everyone will operate in complete safety, it is best to be accompanied and cooperate to solve the problem, after all, it is an electrical appliance, the danger is still there, especially when disassembling, remember to cut off the power in advance!
