I have already looked at the Whirlpool web site but can not find this model. Someone has suggested that the oven may be too old; it was already in the house when I moved in and the house was built in 1985 but the kitchen may have been redone, it certainly doesn’t look 20 years old.
I eventually got through to Whirlpool on the phone.
They said that the oven was originally made for Magnet but has been out of production for 3 or 4 years but they have got the manual and are emailing it to me.