An apparatus and method of predicting failure of an electric car charger that takes an environment around an electric car charger as input using an artificial intelligence technology are proposed. A method of operating an electronic apparatus that predicts failure of an electric car charger may include: acquiring sensor data measured by a sensor; acquiring area information showing an area of the first electric car charger; acquiring weather information at a point in time when the sensor data at the area was measured; creating a failure prediction model based on an artificial neural network; creating learning data; training the failure prediction model on the basis of the learning data; creating input data; acquiring a result about the operation state of the first electric car charger; and predicting possibility of failure of the first electric car charger on the basis of the result.