If the model number you posted this question under is correct, your heating circuits are comprised of the following components:
1. Heating Element
2. Thermal Cut-Out
3. Hi-Limit Thermostat
4. Internal Bias Thermostat
5. Thermal Fuse
You can access your heating circuits by UNPLUGGING the dryer and removing the rear panel.
As viewed from the rear of the dryer, your Heating Element will be located on the RIGHT hand side inside a heater box. The Thermal Cut-Out will be located on the outside of the heater box at the end opposite the heating element terminals. The Hi-Limit Thermostat will be located adjacent to the heating element terminals.
The Internal Bias Thermostat and Thermal Fuse are two small components mounted on the Blower Fan housing on the lower LEFT hand side.
You can refer to the following parts illustration for assistance:http://pcappliancerepair.com/model-display.php
The components are listed as follows:
Heating Element (Item 17)
Thermal Cut-Out (Item 6) - This is a replacement kit. Includes Item 15 when ordering.
Hi-Limit Thermostat (Item 15)
Internal-Bias Thermostat (Item 20)
Thermal Fuse (Item 19)
If your dryer is NOT configured this way, please post back with your complete MODEL NUMBER (located on a nameplate around the door opening) and let me know.
If you need assistance on how to troubleshoot a dryer, you can refer to this link:http://www.fixya.com/support/r3574266-thorough_dryer_advice
The MOST common causes of heat related problems:
1. Blown Thermal Cut-Out.
2. Missing 1/2 your input voltage at the wall receptacle (the dryer will still run with half the voltage missing, but won't heat - double check your source voltage at the receptacle and/or your circuit breakers.
3. Bad power cord, causing 1/2 the input voltage to be missing.
4. Blown heating element.
Read through all the information provided and let me know if you have any questions. I hope you find this information helpful.
NOTE: Take all resistance readings with the dryer UNPLUGGED and the component under test isolated (meaning disconnect any wire leads to ensure the accuracy of your readings).