If your webcam is connected but you aren't seeing an image, it might be the software you're using. TedGem recommends specific apps for testing and recording: : Download Amcap for manual video capture.
When your computer reports that the condition exists, it is not just saying the device feels warm. It is a specific system-level alert generated by Windows USB-Core Diagnostics or the Tedgem proprietary software.
Performance & Features
Blocked Drains Reading