I turn the dryer on and the sensor flashes and then jumps to the drying/cool down cycle does not come on at all

I hope you are covered by the Evenheat Settlement: Evenheat Settlement
"The serial numbers for Evenheat dryers manufactured in 2001 begin with the letters “ML”; the serial numbers for Evenheat dryers manufactured in 2002 begin with the letters “MM”; and the serial numbers for Evenheat dryers manufactured in 2003 begin with “MP.” For 2001 models, the serial number range included in the Settlement Class is ML10 through ML52. (The two-digit numbers following the first two letters represent the calendar week of the year during which the machine was manufactured.) For 2002 models, all serial numbers beginning with “MM” are included in the Settlement Class. For 2003 models, the serial number range included in the Settlement Class is MP01 through MP46. If your Evenheat dryer's serial number does not begin with ML, MM, or MP, you are not a member of the Settlement Class. To locate the serial and model numbers, open the door to your dryer and look for the label immediately above the opening to the dryer's cavity."

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