Baumatic oven:unscrewing the bulb holder

[mike004]

Baumatic built-in oven. The light in it hasn't worked since I moved into the house, 3 years ago.
I am renovating the kitchen at the moment, so I've removed the oven unit from the kitchen units & taken the door off.
The Baumatic handbook says to unscrew the light cover and replace the bulb. But the light cover won't budge.
Any ideas? I suppose it's not a good idea to go squirting WD40 in an oven...

Thanks
Mike

 

[rocks1]

it will budge its just not been removed for a few years, put a towel in your hand and give it a good twist if it beaks they are very cheap to buy

 

[mike004]

it will budge its just not been removed for a few years, put a towel in your hand and give it a good twist if it beaks they are very cheap to buy

Tried that. It was my wrist that nearly broke...it's probably rusted up. There are a few other rust spots nearby.

Thanks
Mike