Hello Chiche, the thermal fuse, is an element of protection in your case, against high temperatures and overheating of the defrosting resistance, its series production is only carried out at industrial level and can not be manufactured manually or by hand , because it must pass a technological control in laboratories, to be suitable for use and exploitation. Needless to say, a failure of the element itself can damage and ruin not only your refrigerator completely, but also your home and even an entire neighborhood, but from the beginning of a fire, for not opening your circuit in time defrost and continue the resistance of the defrosting itself activated for longer than necessary. My recommendation would be for you to look for a thermofuse, with similar technical characteristics, these are generally about 72 centigrade. Luck. S @ lu2 friovega63. Hi Chiche, your refrigerator makes two types of stops, one for temperature and another to make its corresponding defrosting process. Whether or not you make frequent stops due to temperature depends on many reasons, 1-) For the number of times the equipment is opened and closed. 2-) For the amount of food stored, in greater or lesser volume. 3-) Due to the outside temperature, depending on the weather or season of the year existing at the time, obviously if there is outside cold for example, the equipment will have the tendency to work less and make longer stops for your compressor and vice versa. 4-) Depending on the regulation given to your temperature or thermostat controls, which would make the compressor run longer or shorter, so you can never expect a work of exact times by the compressor, as it would be enough, with which one of The reasons listed are met, so that the operating cycle of the device changes. The stops by the defrosting cycle are made, depending on the type of Times or defrosting clock, which uses your refrigerator, there are various types of times, analogues with standardized working times, to enter the process for example in, 6, 7, 8, 10 and up to 12 hours, with an extra time afterwards, passing through the defrosting process or the time it takes to do the same. The most common that are marketed, take to enter the process, between 6 and 8 hours with a duration in said defrosting process that is between 15 and 35 minutes, this time can also vary depending on the type of electrical connection I used the manufacturer, in this case of the refrigerator, for the operation of said times. There are also the electronic Times, which vary their operating time depending on the temperature sensors, which control it, although in general, such as analogues, their operating times, they are about to average approximately, between 3 and 4 daily defrosts, bone in 24 hours. But beware of electronic times, which can also reduce this frequency of normal defrosts, or depending on the temperature sensors, they can also overcome these times. Luck. S @ lu2 friovega63.