looks like you should be able to buy one from this site
http://www.interspares.co.uk/category/diplomat/2186.html?osCsid=7f7f99788660bf7cb969c3f40d445cd2&gclid=CNCb_bDB8YkCFRu1EAodNhM5CQ
gary
January 2007
I can answer this question...
Where can I get a manual for my HD715 Diplomat double oven?