COMBUSTION APPARATUS

PURPOSE: To provide a combustion apparatus capable of effectively storing error information effective to repair or inspect the apparatus even if a memory capacity is small and effectively expediting the remedy for abnormal combustion operation. CONSTITUTION: A data fetching unit 30 fetches the detected data of the operating state of a combustion apparatus. The data is analyzed by a self-diagnosing unit 31 to self-diagnose the combustion operation, and pieces of detected abnormal information (pieces of error information) are sequentially distinguished and stored in an error log memory 35 in the abnormal detecting order. However, in the case of storing, an error information collating unit 33 collates the detected abnormal information with the log error information stored in the memory 35 and prevents the detected abnormal information from being stored in the memory 35 by an error storage preventing unit 32 when the detected abnormal information coincides with any one of the log error information.