METHOD OF RECOGNIZING OVERHEATING IN HEATING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a method of recognizing overheating in a heating formed in a simple structure and capable of surely recognizing the occurrence of overheating. SOLUTION: This method of recognizing overheating in the heating device comprises the steps of (a) detecting the first magnitude of the overheating characterizing the operating state of a heat source based on the results of sensing of a first sensor device, (b) detecting the second magnitude of the overheating relating to a temperature within the range of a second sensor device based on the results of sensing of a second sensor device, (c) inspecting as to whether the second magnitude is positioned within a specified range or not when the presence of the specified operating state of the heat source is indicated, and (d) determining that the heating device is in the overheated state when the second magnitude is not positioned within the specified range.