Hello Sue. You could have a problem with the control. I recommend that you accurately measure the oven temperature using this procedure:
Set the oven bake temperature to 350 degrees and start the oven.
Allow the oven to preheat and then let the bake element cycle on and off at least 5 times before checking the oven temperature.
Check the oven temperature every minute for a 10 minute period and then find an average of those temperature measurements for that 10 minute period.
The actual oven temperature measured in this manner should be close to the set temperature. If it is off by less than 35 degrees, then you may be able to adjust t6he control to fix this problem. Reply with additional details and the full model number of your GE gas oven if you need help with that adjustment.
If the temperature is more than 35 degrees off or it is apparent that you have a component problem, then I recommend that you reply with additional details and the full model number of your range. We will assist you further once we receive that additional information.
If you get to the point where you need to have a service technician diagnose and repair this failure, you can schedule service through this link:
Sears Home Services