Hello my partially Irish washer woman friend, If the element was bad then you would have NO HEAT at all so we gotta suspect either one of 3 thangs. The control, the timer, or the lint. It is my experience we do not replace too many control thermostats so we are down to lint and timer. If the lint is clear from the filter housing blower wheel and vent pipe then you has got to look towards the timer. I gotta tell ya though 99% of the time the timer ain't the problem. So if none of the above was the problem, what the heck could it be then? It could be a bad breaker! They get hot and quit on ya causing symptoms like you mentioned.