Dryer my dryer runs but does not heat. how hard is it to fix and can i do it myself? need good directions.

If its a DOTT dryer (Dryer Of Tomorrow, Today) you will have the lint filter in the door. You would remove the bottom access panel to get to the element, thermofuse, etc. PLEASE, UNPLUG THE THE UNIT BEFORE STARTING. Take a putty knife and pop the clips between the top half and bottom panel about 4 inches in on either side. Flip the bottom panel down, and swing out of the way. Remove the vent plenum by removing the two 1/4" screws on either side. Be sure the lint filter is removed, then remove the ducting. On the right side you will see a square box. Remove the cover on the front so you can get to all the goodies. You will need an ohm-meter to ohm out the system. Check the element by removing the wires and testing between the two connectors. If you get no reading, the element is bad. If you get a reading, reattach the wires, then remove the two wires off the thermofuse (not to be mistaken with the thermostat, which you can also ohm-out) and test those terminals as well. If you get good readings through-out all the thermostats, thermofuses, and element, you may have a switch or timer going bad. Here is some further info for you.

http://www3.sears.com/imaging/ImagePageJava.shtml?productTypeID=0151200&brandID=0582&modelDesc=ELECTRIC%20DRYER&modelNumber=11096195120&documentID=00064086&documentTypeID=PLDM&documentClassCode=PM&titleType=BULKHEAD&titleID=00003&

This is a breakdown sheet of the element area. Parts are:

#14 - Element
#47 - Thermal Cut-Off (usually the suspect in heating problems)
#48 - Thermostat

http://www3.sears.com/imaging/ImagePageJava.shtml?productTypeID=0151200&brandID=0582&modelDesc=ELECTRIC%20DRYER&modelNumber=11096195120&documentID=00064086&documentTypeID=PLDM&documentClassCode=PM&titleType=CABINET&titleID=00002&

#61 - Lower Access Panel
#19 - Panel Holding Clips (What you will put the putty knife in to pop bottom panel loose.

Let me know if you need further information or help. Good Luck!!!!! Jim

Is your vents clean??Assuming it's electric!! If yes....Unplug unit!!!!! and pull away from the wall so you can get behind it.Remove back cover.1/4 in. screws.On the heater cover you will see the high limit switch(black button like piece with two wires connected to it.Unplug the wires from this piece.Check continuity.(Multi meter)If you don't have it the high limit is bad.Local Appliance store part.