System having - a multi-core temperature sensor with a circuit for measuring three temperature-dependent resistors (A, B, C) and - a domestic appliance, which has an electronic measuring system and a contacting option in the form of a three-pole bushing or a three-pole connector for the multi-core temperature sensor, wherein - the three resistors (A, B, C) can be contacted by way of three terminals with the electronic measuring system, - the three resistors (A, B, C) are arranged in the form of a star circuit, by a pin of each of the three resistors (A, B, C) being connected to a star node and the respective other pin of each of the three resistors (A, B, C) being connected to one of the three terminals, characterised in that - by means of electronic switches (S1-S2 or S1-S3) of the electronic measuring system the three resistors (A, B, C) can be connected by way of their terminals, - on the basis of different measurements the resistance values of the resistors (A, B, C) can be measured at different points in time by means of the electronic measuring system, - one of the terminals is connected to earth potential and - by means of the electronic measuring system the terminals can be connected by way of two electronic switches (S1, S2) such that measuring resistance values R12, R23 and R13 for the three resistors A, B and C can be measured as follows: R 13 = A + C R 23 = B + C R 123 = C + A ‖ C and - based on the measuring resistance values R12, R23 and R123, the three resistance values A, B and C can be measured as follows: A = R 13 − C, B = R 23 − C, C = R 123 − R 123 2 − R 123 ⋅ R 13 + R 23 ⋅ R 13 − R 23 ⋅ R 123 or by means of the electronic measuring system the terminals can be connected by way of three such that the measuring resistance values R12, R23 and R123 can be measured as follows R 13 = A + B R 23 = A + C R 123 = C + A ‖ B and - based on the measuring resistance values R12, R23 and R123, the three resistance values A, B and C can be measured as follows: A = R 12 ⋅ R 23 − R 123 B = R 12 − A C = R 23 − A - a multi-core temperature sensor with a circuit for measuring three temperature-dependent resistors (A, B, C) and - a domestic appliance, which has an electronic measuring system and a contacting option in the form of a three-pole bushing or a three-pole connector for the multi-core temperature sensor, - the three resistors (A, B, C) can be contacted by way of three terminals with the electronic measuring system, - the three resistors (A, B, C) are arranged in the form of a star circuit, by a pin of each of the three resistors (A, B, C) being connected to a star node and the respective other pin of each of the three resistors (A, B, C) being connected to one of the three terminals, - by means of electronic switches (S1-S2 or S1-S3) of the electronic measuring system the three resistors (A, B, C) can be connected by way of their terminals, - on the basis of different measurements the resistance values of the resistors (A, B, C) can be measured at different points in time by means of the electronic measuring system, - one of the terminals is connected to earth potential and - by means of the electronic measuring system the terminals can be connected by way of two electronic switches (S1, S2) such that measuring resistance values R12, R23 and R13 for the three resistors A, B and C can be measured as follows: R 13 = A + C R 23 = B + C R 123 = C + A ‖ C and - based on the measuring resistance values R12, R23 and R123, the three resistance values A, B and C can be measured as follows: A = R 13 − C, B = R 23 − C, C = R 123 − R 123 2 − R 123 ⋅ R 13 + R 23 ⋅ R 13 − R 23 ⋅ R 123 or by means of the electronic measuring system the terminals can be connected by way of three such that the measuring resistance values R12, R23 and R123 can be measured as follows R 13 = A + B R 23 = A + C R 123 = C + A ‖ B and - based on the measuring resistance values R12, R23 and R123, the three resistance values A, B and C can be measured as follows: A = R 12 ⋅ R 23 − R 123 B = R 12 − A C = R 23 − A