Oven wont always turn on when switched off by mains and turned back on i set clock oven functions lights up but then can not set any other function. After so long turns itself off again, and then turns itself on. This oven is out of warranty but hardly been used as house been empty. Tried pressing the button in midlle on function no joy. Read manual this has been going on for a month. Sometimes will come on but next day wont. e.mail userper837@aol.com