The present invention is proposed to detect occurrence of defects in a sensor. A power source unit 300 includes a sensor section 330 detecting a request for aerosol generation; and a control section 340 determining whether the sensor section 330 is in a normal state or an abnormal state, based on an output from the sensor section 330 which has detected the request for aerosol generation.本發明係檢測感測器之不良狀況的發生。電源單元300係具備:檢測霧氣生成要求的感測器部330;根據來自檢測出霧氣生成要求之感測器部330的輸出值,判定感測器部330的狀態為通常狀態及非通常狀態之哪一狀態的控制部340。