A method is disclosed for evaluating an operational readiness of an electric motor, such as an electric motor of a fan. The method includes: initiating a run-up process of the electric motor, the speed being changed in several speed levels during the run-up process, generating at least one measured value by measuring a physical variable with a sensor of the electric motor in at least one of the speed levels, loading at least one parameter datum from a parameter memory of the electric motor, wherein the at least one parameter datum corresponds to the at least one measured value generated, and evaluating the at least one measured value for at least one of the speed levels using the at least one loaded parameter datum. Further disclosed are an electric motor with a parameter memory and a parameterization interface as well as a fan with this electric motor and an impeller.