Hello marcanda
Thanks for taking the time to post on the forums in regards to your Hub and red LED, we appreciate the concern this can cause and are happy to assist via the community.
I will send you a Private Message, please keep an eye out in the top right when signed into the forums for the envelope. This is where you will be able to find my Private Message and be able to respond.
In the meantime, please follow the steps below and if the Hub feels overly warm to touch please don't use unattended:
• Turn the power switch off on the back of the Hub.
• Ensure the Hub is upright, in a well-ventilated location and out of direct sunlight, if possible.