METHOD FOR SECURING THE OPERATION OF A HEATING DEVICE

The invention relates to a method for securing the operation of a heating device comprising a heating element (1) disposed in an electrical circuit comprising a power supply unit (4) and at least one switch (6.1, 6.2) controlled by at least one central unit (7) between an open state and a closed state as a function of a temperature difference between an ambient temperature and a set temperature. According to the invention, the method comprises the steps of cyclically controlling an opening of the controlled switch independently of the difference between the ambient temperature and the set temperature, and of verifying that the electrical circuit is effectively interrupted. [0002] Application in particular to the automotive field.