The oven will not turn off.
Answer Hello lewis. If the off button is not working, you will need to replace the control board WB27T10469 on the unit.
Smell of gas from oven.
Answer Hello Ron. Test for 3.2-3.6 volts AC at the gas safety valve with the igniter turned on. If the voltage is there, you have a bad safety valve. If the voltage is low, you have a weak igniter and the igniter will need to be replaced. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html
How do I get to the Thermostat Assembly AP2623073 on my GEXL44?
Answer Hello Dale. We will need your model number to help you with this. Please call 1-877-477-7278 or post your model number with a new question on the parts page. http://www.appliancepartspros.com/modelnumber_locator.aspx