Hello charlotte_lynn99

                                         If the modem is overheating we would suggest you to disconnect the modem from the power and keep it a side, please reach out to Arris support team to proceed with warranty claim.  please reach out to us on arris.com/consumersupport

How do I contact consumer support the site chat is disabled and there is no phone number

To contact consumer support, I suggest you to visit www.arris.com/consumersupport for more information.