fredpuli, it is recognised that inherent faults (manufacturing defects) show up within a relatively short time of use, so six years is plenty of time for such a fault to manifest.
A manufacturer cannot be held responsible for either fair wear and tear nor owner misuse/abuse and there has to be a period when a manufacturer can no longer be held liable, and the law has held this to be six years, under English law.
My opinion on that fact is not relevant - eastern does not want a legal debate, only her rights in law.
If serious consequence were to arise from an appliance even after a short period, the manufacturer is not necessarily liable - the company would have to be found negligent. If it were a one off, and the same model did not have a similar malfunction, it is highly likely the company would not be found to be negligent, unless it can be proved that that event could be foreseen under proper use of the appliance.
If several serious incidents were reported, regardless of time scale, then the authorities would investigate.