While you wait for answers, we may have found some information which could help you.
Click here for Change Manual Housetimer set on auto and unable to use oven by resetting it?
can anyone identify the faulty part on my Diplomat range cooker?
one of the hobs will not switch off?
how can i fix my hob ? diplomat k40/apl1304?
How do I switch on my cooker?
what wire do i use to connect a diplomat select 710 double oven?