Hello how are you, that refrigerator does not have bimetal, it has a 2.7k defrost sensor and a 2.7k temperature sensor are compatible with each other but for that model they are not only compatible with other models, even if they are of the same value it has a thermal fuse It must mark continuity and the problem of blocking may be in the operation of the resistance, the drained clogged or out of value the defrosting sensor that is located in the last section of the return pipe of the evaporator greetings. https://adjuntos.yoreparo.com/imagen_post/0004/18/516d28e1c4575ec6c66cf5f55ec4163a107add3a.png" alt="" />