30" frigidaire gas range

If you can not open the top part without any difficulty it is probably not suppose to. On some models especially the ones with sealed burners, are not to be opened by just liftting the top. Hence the "sealed" type. If you force it to open you are going to damage the unit and void any warranty. Go to the manufactureres website and down load any manual you need. Be sure to have your model number off the range handy. Good luck.