Maam, at your age and this issue I would get someone over to assist as you may need to light the oven which will be difficult for you to do.
1.Check the temperature dial on the oven and make sure it is in the "Off" position. If the oven's pilot light is designed to burn constantly and has blown out for some reason, you will leave the dial in this position while you light the flame.
Consult the owner's manual, if you have it, to locate the pilot light. If you don't have the owner's manual, open the oven door and look in the bottom of the oven for a small hole marked "Pilot Light" or something similar. It may be in the front and center of the oven or in one of the back corners.
Open the broiler door if you can't find the pilot hole in the oven's main compartment. Look for the pilot hole in the base of the broiler. If you can't find it there either, remove the broiler carriage and look for a labeled hole in the back of the empty broiler compartment.
Light a long match. Hold the flame beside the opening of the pilot hole. If the pilot is designed to burn constantly, it should light. If the oven is designed to be manually lit for each use, turn the temperature dial on slowly. The gas should ignite.
Remove your hand and the match immediately. Replace the broiler carriage if you removed it. Close the door.
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