Oven Not Lighting....HELP!? My Gas cooker isnt working properly, the hob and grill are working...

My Gas cooker isnt working properly, the hob and grill are working fine but the Oven wont ignite. I noticed Sunday after using the oven Saturday hours of darkness to cook Duck. Could it just be blocked because I did spy that their was tons of obese spitting when the duck was contained by.
Any ideas?
Obviously I will give the name in someone to mend it but would of late like to know if possibly I could take the bottom out first and verbs out the area purely in overnight case its just simply bunged up.
How abundant voltage must be ...
did you serve it beside Quackers,

How can you remove the cement residue from...
Well you could try cleaning it obviously, that won't hurt anything but certainly do christen someone in. Gas is massively tricky and dangerous you should not attempt too much on your own.

P.S. Hope the duck be tasty!
Should I place my furnace/AC filter at the...
Answers:    Take the bottom out and verbs. If the unit have a pilot light, check to see that it is burning. Vent adjectives gas from the appliance before: If you enjoy one, light it up. If it go out you need a thermo-couple (get help)