Kenmore range 665.95775890 stuck light cover in oven

[BradleyHolcomb]

purchased year 2000, this is the first time the bulb is not working, looked in the manual it says to turn bulb cover CCW but I don't know if that means "unscrew" it (multiple turns) or turn a few degrees to release. Anyway, the glass light bulb cover only turns a few degrees either way and (I think) the socket is turning with it. I would likely guess 20 years of buildup has joined the socket and cover but I'm not sure. What should I try? Should I try a "little" harder turn? Repeated back and forth turns? Would it help to try to access it from the back side? TIA

[BradleyHolcomb]

Got it! After some more googling I found a whole lists of tactics here https://www.chowhound.com/post/seeking-removing-oven-light-bulb-cover-972026?page=4

I heated the oven to 350, turned it off, left the door open, waited for it to cool, while cooling I gently tapped it with a rubber mallet (repeatedly, lightly, different angles). Luckily I have an IR thermometer, when the cover got to down to about 130 degrees I used a strap wrench, loosened like a dream!