The oven timer in our thirty year old Leisure Professional Auto 55 gas cooker went 'on the blink' in March. My initial attempt to get a replacement via the Leisure site drew a blank, but as the manual also applied to the similar Rangemaster Auto 55, I had an easy time finding the unit we needed at Range Cookers of Cheshire. Once ordered, it arrived quickly, delivered by our usual postman who knows the difference between Saint Ann Street and St. Ann Place. Once installed, it worked straight away, thanks be.