Method for operating a heating device for a motor vehicle in the start phase

摘要

The method involves testing, whether a measured variable indicates a temperature lying above a temperature threshold in the area of a flame sensor (54). A function test of a overheated sensor (56) or a control sensor (58) is carried out before or during starting a combustion operation, if the measuring variable indicates a temperature lying above the temperature threshold in the area of the flame sensor. The combustion operation is started without carrying out a function test of the overheated sensor or the control sensor, if the measuring variable indicates a temperature lying below the temperature threshold in the area of the flame sensor.