Dryer won’t heat? This video demonstrates how to test a flame sensor on a gas dryer. The flame sensor is a commonly replaced part for a dryer not heating.
Other commonly replaced parts for a dryer that won't heat are:
Gas solenoid valve
High limit thermostat
Main control board
All of the information provided in this part testing video is applicable to the following brands: Amana, Frigidaire, GE, Kenmore, LG, Maytag, Roper, Samsung and Whirlpool.