This was a system put up a large retail outlet,and he got the whole package at a cut down price,and as it turns out cut down service.
The freesat box a very low priced bottom of the range,which as a habit of simply locking up,just by going through the menu system.
The only real cure for a locked freesat box or freeview box for that matter is to whip the plug out,and leave it for a few minutes.One of my old friends who is a designer of digital electronics a lot more complex than any thing like this,tells me the locking up problem is due to hardware design not as some companies claim software.
The customer had set the unit record a load of programes while they were away on holiday,that didn't happen,on their return the box had frozen solid.
Is other bug bear was the picture breaking up in wet weather,not a difficult one water is invading the lnb,this one had no self amalgamating tape on,problem solved.Motto is don't always go for deals,it is usually just a ruse to get rid of old stock,to give you the impression you have got a real bargain.