There is no heat on my electric dryer. I am not good and scared of electricity, but also have been out of work since June and am single mom 2 kids (clothes keep coming) and must fix this myself. Can anyone guide me through what to check. It runs fine, but is not in the least bit warm. I have changed all the button settings, checked the breaker, cleaned the filter - vacuumed as far as I could in the exhaust tube. Help!