I have this machine, and it is fine with freeview. Have you checked the aerial connections? ie if you have a freeview TV as well, is the signal strong? What steps have you taken via the menu (eg retune from scratch?)
I've been having the same problem everytime I switch mine on. Mine's a different model (ES20D) It says a new DVB service is available even when I know there isn't!! If you let it search for new service it comes back with no channels added. Seems to have been doing this since the re-tune last October.
I hoped the DSO here in Wales would sort it out, but after the first phase on 3 March it's still saying it's found a new DVB service each time I switch on. I have a Panasonic IDTV which is behaving OK.
I've gone into setup menu of the DVD recorder and switched off the auto notification of new service. I'll know to re-tune it as necessary cos my TV should let me know!