I've got a Bosch oven and the oven lamp needs replacing. The problem is that I cannot unscrew the threaded glass lamp cover which is set in the top of the oven. As I try to unscrew it anti-clockwise the fitting into which it screws also rotates. It seems to me I need to be able to grasp the fitting from above while unscrewing the glass cover but there is a ceramic hob above it!
Will it be necessary to remove the hob to gain access and how is this done?
TIA Terry