As a general rule of thumb, we recommend you ensure there is airflow behind the SAMi Camera. If your camera is warm, that is perfectly normal. If your camera is hot, but is still functioning as expected it likely isn't something to be worried about. We have never seen a camera fail due to overheating. If your camera is no longer functioning correctly, please contact us through our support form here - https://hipass.zendesk.com/hc/en-us/requests/new.