On Thursday, 20 August 1998 08:00:00 UTC+1, Louise Cooper wrote:
Thanks very much to everyone who's given me advice on this problem -
it's greatly appreciated. The proprietor of the shop who sold me the
cooker has now weighed in on my behalf, and is taking the matter up with
the manufacturers - who apparently told both her *and* their own rep.
last year that the cooker WAS convertible, and have now moved the
goalposts. With a bit of luck, I think this will be satisfactorily
sorted - but rest assured, I won't attempt any kind of DIY on this; any
work on the cooker will be carried out by a Corgi registered fitter or
not at all.

Thank you all again.
--
Louise Cooper

Even after conversion, you may find the controls a lot less effective than previously.