examine all the ducts in the dryer, and the fan and fan housing for lint. Lint buildup stops the air exiting the dryer
cant get out
cant get in
no air
no dry
surprising how much lint you can get out of a dryer
UNPLUG
after clearing all the lint,
examine devices::
thermal fuses, thermostats and the heater element for conductivity.
remove 1 wire from each to isolate from the circuit, test with ohmmeter or battery and bulb, replace wire
when cold all devices in the heater circuit should conduct
when cold a small device in the motor circuit that looks the same as all the other devices, a cool down thermostat does NOT conduct
devices: may all look alike,
to open dryer case read any of the 'changing dryer belt' questions or the good instruction manual posted by Joks