Gas can be turned on very easy

If it has a bottom drawer, pull it out and look on the stove on the left side

on most, your push down and turn to hi to open gas valve and turn on piezio to light burner. it sounds like you have a knob already turned on . the control under the knob may need replacing. kinda an easy replacement if you get new part. check out repairclinic.com for video(maybe) but for parts for sure. be careful. gas is explosive.

cork is not a seal against gas so what he is talking about may be a retainer or bed for the gas unit. I would get a second opinion first and ask how it is done .

If you are seeing the bubbled paint on wall when you open the oven door, it is more than likely heat loss past the door gaskets. They are easy to install clip on gaskets

You most likely have a problem with the temprature contol knob and the thermostat.

This is all contained in one unit. The controller has a long metal "wire" that sends the temp info to the controller. The "wire" ends inside the oven.

This whole assemblage needs to be replaced.

I would need the type of stove, gas or electric age and model to give you replacement directions

The groaning your hearing is the internal gas regulator. It is nothing to be worried about unless your having problems with the size of the flame whn the oven is in use. The groan is the gas passing under the diaphram and the diaphram is gently vibrating against the regulator mating face. It can be annoying but really nothing to be concerned about. If you really want to rid yourself of the nuisance you can either have the regulator changed (legally) or change it yourself:
The regulator is item 14 this link: http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5151291&diagram_id=1241169#d1241169

My thoughts are as a 35 + year in home repair person is: Unless there is some other problem.. do not be too concerned.

Thanks for choosing FixYa.

Kelly

The orange glow you see is coming from the oven igniter. The igniter needs to glow white hot in order to light. You need to replace the oven igniter. Hope this helps.

your oven switch is shorted out the contacts or stuck closed take file and clean contacts or replace temp control

We have the same problem constantly. We have discovered that if we disconnect from electrical outlet, we "reboot the interior control" and it starts again. Said to say, tonight it doesn't seem to be working. I hate these! I'm going to go look for an "old fashioned gas range."/

take a look at the igniter located in the center of two burners. clean the gap with a stiff brush between the eletrode and the upper plate. the distance is preset at the factory. you may have enough buildup to close the gap enough to trigger the igniter.