Muller refrigerator compressor does not turn off. What to do?

When the constant operation of the compressor in the No Frost refrigerator Muller is a standard situation and you can deal with it yourself
From experience, we can say that there are a number of cases when the owners of No Frost refrigerators Muller do not need to worry about the equipment not turning off, and they can cope with such a malfunction themselves without calling in a technician. Here are such situations.

You just turned on the refrigerator. Long-term operation of the compressor is observed in refrigerators after inactivity or in new equipment that has just been brought from the store. This is a natural process, because the refrigerator needs to reach the required temperature. The time for reaching the required temperature can increase for several reasons: for example, if it is too hot in the room or if you immediately put a lot of food in the refrigerator. In this case, you do not need to do anything, the equipment will reach the temperature, and the motor will turn off itself.
The quick freeze or cool function of products is turned on. These are special modes that allow you to freeze or cool the contents of the chambers faster than usual – up to 24 hours. When they are turned on, the compressor is constantly running and does not turn off. After the task is completed, some models of refrigeration equipment turn off this function automatically, while others require human intervention (we are talking about manual shutdown).
There are a lot of warm products in the freezer or refrigerator compartment. The more products you put inside the refrigerator after defrosting, the longer the cooling and freezing lasts. And accordingly, the motor works for a longer time without rest. In this case, it is recommended to turn on the “Super Cooling” or “Quick Freeze” mode.
Incorrect installation of the No Frost refrigerator, which negatively affects heat removal from the condenser. The refrigerator must be installed according to the instructions, adhering to at least a minimum set of rules: there must be a well-ventilated space at the back and on the sides (approximately 5-10 cm). Also make sure that there are no heating devices, oven or stove nearby. If the grilles at the back of the refrigerator (condenser) do not give off heat well to the environment, the refrigerator will rarely turn off for rest.
The refrigerator door is opened frequently. Whenever the refrigerator or freezer door is open, warm air from the room gets in. Therefore, the more often you open the door, the more intensively and longer the motor has to work to lower the temperature in a particular compartment. The refrigerator door is not closed. If you forgot to close the door or installed the refrigerator tilted forward, so that its door is constantly open, it is not surprising that the motor runs without stopping. Correct the situation: close the door or install the refrigerator level or slightly tilted back, and the problem will disappear.