Hub3 light is solid red

I’ve had a few issues with my home network setup with which I use the Devolo magic2 mesh network for a few years but recently I’ve been having some connectivity issues to which I have noticed that my My hub3 router has a solid red light on, I’ve checked to see what the red light means and it’s an over heating issue. I’ve followed the instructions on what to do ive done a reset and the light is still red. The hub has been in the same place for about 3 years and is well ventilated so looks like it needs replacing