thermostat or heating element failure due to lack of air flow . I would start by checking the thermostat ,remove rear panel and at the bottom left hand side you will see the stat ,there will be two wires going to it ,the safest way to test this is with a multimeter,but you can test by bypassing the stat.remove wires and connect together ,make sure the connection is well insulated ,.use insulation tape.next turn you're dryer on and feel for heat.the moment you feel heat switch off and replace the stat.if no heat is felt disconnect power then I would remove heating element and inspect for breakages.
mech monster, October 2011
