My Whirlpool GGW9250PW3 gas dryer stopped mid-cycle, and now the sensing light stays on, there is a click inside somewhere and nothing happens, it doesn't run at all.

When the dryer gets very dirty it will stop due to overheating to prevent a fire. You will have to take it apart and test the thermal fuse near the heating element. Most likely it is blown and will have to be replaced, but you will have to clean the drier out thoroughly or it all for nothing. Every air duct will have to be removed and scraped and washed out to remove baked on lint deposits which is like a concrete lining. This will burn so the manufacturer has installed the safeties to keep from having a house fire. Driers were the number one cause of fires at one time. Look at: http://www.youtube.com/watch?v=MMP7BW1lLs4 to see how. Also: http://www.youtube.com/watch?v=iBiRw-KElC4 ; http://www.youtube.com/watch?v=yFTZGgVisCI
When you finish cleaning the drier and install a new safety it is best to also replace the belt, too, because you do not want to have to disassemble it again and if the belt is over two years old you should replace it. The safeties are oval-shaped with a round center part containing the safety with two plug-on terminals for the wires.
Using an ohm meter you put a lead on each terminal of the safety with wires unplugged and if it's good you will have a reading of about zero; if it's bad it will read infinity.
Note that on most of the videos it does not show them washing out the parts, but this is important because it's the only way to really get the parts clean, just don't get motor wet or the capacitor if it has one. Vacuum out the motor. I would move the drier out to your garage to have plenty of space to work. You also want to check your vent and clean it, also. The job is really easier than it sounds. There is no shortcut that will work; it has to be cleaned well. Before you re-assemble it make sure to use white lithium grease (high-temp grease) and grease all bearings. Just vacuuming out the dryer a little does little good. DrTom4444

I have a duet approx 6 years old gas dryer ggw9250pw3. Not heating all the time the igniter comes on but it doesn't seem to always start the flame. Just wondering if you have any suggestions on the. I do have the front panel off looking at it

Look at the enclosed manuals: https://dl.dropboxusercontent.com/u/8010163/Frigidaire%20Dryers%20and%20Test%20Equipment.zip
In these you will see instructions for troubleshooting gas appliances where flame rods and igniters are discussed. You could just have a dirty flame rod which is a small device that looks like a spark plug with a long straight center electrode, which it basically is. When it gets dirty it cannot measure electrical current between the tip, down the flame to ground because a flame will conduct electricity, but unlit gas will not: It proves the flame. That is the most common problem because the flame rod gets dirty and needs to be cleaned with some very fine (3000 grit) sandpaper. When it's cleaned and has a clean ground connection it will go back to working. I hope this helps. There are also other tests outlined, but the flame rod is the most likely cause of the problem.

I have a whirlpool duet gas dryer mod.# ggw9250pw1 after it sits around 3-4 hours three lights come on thedry level light more, the dial light delicate, the wrinkle shield light they are dim and the control panel will not work the door light works fine I unplug for a while and it will work fine until it sits idle again help