I have a power timer set for 0700-0720 on my 5000T. This morning, I noticed that the red light was showing at 0717. I switched on by hand OK using the remote, so the box was not locked up, then checked the timer was still set, which it was. At 0720, it switched off as usual. All very odd.
If I see it again, I will try a power off/on restart.