The invention relates to a method (200) for identifying a fault condition of a
temperature control system (100, 101) comprising several components (110, 120, 130, 140, 150, 160, 170, 180, 190) through which at least one
temperature control medium flows, the method (200) comprising a sensory determination (204) of at least one
physical quantity of the at least one
temperature control medium at at least two different positions (111, 121, 131, 151, 161, 171, 181, 191) within the temperature
control system, a computational determination (203) of the at least one
physical quantity for each of the at least two positions, a determination of a difference (208) between the sensory-determined and the computationally determined
physical quantity for each of the at least two positions, and a determination of the presence (209) of an
error state depending on the difference and, if an
error state has been determined to be present,Identifying the type and / or location of a fault (302, 303, 304) based on the difference. Identifying the location of the fault includes identifying the components affected by the fault, and / or identifying the type of fault includes identifying a function of at least one of the components that is not functioning as intended. Furthermore, a computing unit, a temperature
control system, and a
computer program for carrying out such a procedure are proposed.