A test element analysis system (130) for the analytical examination of a sample, in particular of a body fluid, is disclosed. The test element analysis system (130) comprises:- at least one evaluation device (158) with at least one test element holder (142) for positioning a test element (110) containing the sample and at least one measuring device (160) for measuring a change in a measuring zone (118) of the test element (110), the change being characteristic for the analyte;- at least one electrical heating element (132) configured for electrically heating the test element (110);- at least one electrical power supply (148) for supplying electrical energy to the electrical heating element (132);- at least one temperature sensor (140) connected to the test element holder (142) for detecting a temperature of the test element holder (142);- at least one gap detection device (150) configured for monitoring the electrical energy Espez supplied by the electrical power supply (148) to the electrical heating element (132) for reaching a predetermined target temperature measured by the temperature sensor (140).