A method for detecting a water change in a water-conducting domestic appliance, in particular a dishwasher, comprising: • a sensor for detecting water • a sensor for detecting the temperature • a control unit for processing the sensor data wherein the method comprises the steps of: (a.) detecting water in a defined time interval ZI w,1 of 2-120 seconds, preferably 5-60 seconds, particularly preferably 10-30 seconds, wherein, after the lack of water has been detected at at least two, preferably at least three consecutive measurement points within a time interval ZI w,1, the method step (b.) is carried out, (b.) detecting water in a defined time interval ZI w,2 of 1 ms - 120 seconds, preferably 5 ms - 60 seconds, particularly preferably 10 ms - 30 seconds, wherein after establishing the presence of water at least once within the time interval ZI w,2, the method step (c.) is carried out, (c.) detecting the temperature in a time interval ZI T,3 of 2-120 seconds, preferably 5-60 seconds, particularly preferably 10-30 seconds, wherein the method step (d.) is carried out if at at least two, preferably at least three consecutive temperature measuring intervals ZI T,4 within the time interval ZI T,3, the temperature T 1 at the start of the measuring interval ZI T,3 is higher than the temperature T 2 at the end of the measuring interval ZI T,3, (d.) carrying out the method step (e.) if less than two minutes pass between the water being detected according to method step (b.) and a negative temperature gradient being detected at least three times in succession according to method step (c.), (e.) generating a control signal by means of the control unit due to a detected water change according to the method steps (a.) to (d.). • a sensor for detecting water • a sensor for detecting the temperature • a control unit for processing the sensor data (a.) detecting water in a defined time interval ZI w,1 of 2-120 seconds, preferably 5-60 seconds, particularly preferably 10-30 seconds, wherein, after the lack of water has been detected at at least two, preferably at least three consecutive measurement points within a time interval ZI w,1, the method step (b.) is carried out, (b.) detecting water in a defined time interval ZI w,2 of 1 ms - 120 seconds, preferably 5 ms - 60 seconds, particularly preferably 10 ms - 30 seconds, wherein after establishing the presence of water at least once within the time interval ZI w,2, the method step (c.) is carried out, (c.) detecting the temperature in a time interval ZI T,3 of 2-120 seconds, preferably 5-60 seconds, particularly preferably 10-30 seconds, wherein the method step (d.) is carried out if at at least two, preferably at least three consecutive temperature measuring intervals ZI T,4 within the time interval ZI T,3, the temperature T 1 at the start of the measuring interval ZI T,3 is higher than the temperature T 2 at the end of the measuring interval ZI T,3, (d.) carrying out the method step (e.) if less than two minutes pass between the water being detected according to method step (b.) and a negative temperature gradient being detected at least three times in succession according to method step (c.), (e.) generating a control signal by means of the control unit due to a detected water change according to the method steps (a.) to (d.).