My dryer runs but has no heat. I've changed the heating element and thermostat as well and still no heat. I've not gone as far as to get a meter and testing other components, but I'm thinking it maybe the timer. Any ideas?
Try checking the thermal fuze that protechs the element, if blown,it'll run but no heat. You'll find it at the top left of heater box with 2 large wires
Electric Dryer runs no heat 
