I am genuinely concerned about other peoples safety rather than just trying to cause a fuss & feel that as the manufacturers do not seem interested then I MUST take it further.
If you are genuinely concerned then post on here at least what you found, giving make and model of the appliance, and if possible pictures, at least then those on here will be alerted of the danger.
With the Thirza Whittal case it was the house owner who was found responsible for the death for not getting the house tested before use, it was not the heater to blame although clearly it was the fact that the heater was faulty which caused the death, it was the lack of adequate earthing in the house. The whole reason for earthing a class I appliance is that the manufacturer can't be 100% sure a fault will not make the casing live.
I seem to remember some thing like "electrical bonding automatic disconnection of supply" we would write EBADS in the appropriate box on the schedule of test results. The point is if the oven has a fault to earth and also there is not earth on the supply, it would be the person who allowed the supply to be without an earth, not the manufacturer of faulty equipment who would be held responsible.
There is however with ovens a problem, it is common for an oven to be connected directly to a cooker connection unit, in doing this any fuse protection in the plug is removed, if ever fitted, although the oven in rarely rated above 16A it is common to supply from a 32A supply, in fact in some cases a 45A supply, the question arises with a supply three times larger than required, will the supply fuse rupture or MCB trip before any internal wires in the oven fail? If due to an oven fault there is a short to earth we would hope the fuse would rupture, however if the earth wire inside the oven failed first then we have a potentially lethal situation. There clearly must be a limit to the fuse size, however reading manufacturers installation instructions you see the minimum size but often no maximum size.
So if the manufacturer fails to indicate a maximum fuse size, if due to an internal fault the earth connection is lost, and as a result the case becomes live, who will the courts find responsible? As far as I know it has not happened, but it could, so if a oven designed to run on 13A is connected to a 45A supply and an internal fault causes a short which in turn causes the earth connection to be lost, then will the court find the installer or manufacturer at fault?
Since we don't know, information as to which ovens have potential faults is still good, I had a talk with my son on this, should he run two feeds from the consumer unit in parallel to where the cooker will be, so if stand alone is used both feed a cooker connection unit, or if split level is used they can be split, or would this cause confusion with the next EICR?
So lets have all the information on this oven you can provide please, at least then people on here will know what make to avoid.