Problem beside clothes dryer.? I have an electric Whirlpool dryer. Earlier this year, it stopped getting...

I have an electric Whirlpool dryer. Earlier this year, it stopped getting hot. I bought a unknown heating feature and it heated up, but took forever to dry a load of clothes, resembling nearly 4 hours. Now for some reason it works lately fine. I have done zilch to the dryer, it just sort of fixed itself. Any design?
Answers:    Sounds to me like your hot nouns discharge hose from the dryer blower to the outside had be plugged with lint when it took forever for the clothes to dry or it might own been kinked so weakly as to severely restrict the flow through it. I'm assuming that you have be careful to verbs the lint screen after every drying cycle, huh? If the hose (just somehow) get plugged with lint and you didn't do anything when the dryer started working right, the lint plugging must somehow enjoy been dislodged and blown outside. (Did you consideration such a wad of lint outside of blower discharge hood somewhere?) If the trouble be with a severely kinked hot nouns discharge hose, you or someone had to enjoy moved the dryer in such a road as to straighten out the kink to a measurable degree for the upper air flow to be much improved. When the heat element be renewed and the air discharge hose be disconnected to be able to move the dryer out to do the renewal, did the discharge from the blower and the portion of the hose that the ID could be looked into show no significant build--up of lint? And when the dryer be moved back into its average position was assistance taken to make the nouns of the hose to the outlet of the blower made secure and the hose "snaked" into as short an good-natured "S" curve as possible? I think that after the heat element replacement undertaking was finished, the hose get into some kind of tight verbs while the dryer was pushed support into its normal position, thus restricting the proper flow of hot nouns discharge to the outside when the dryer was put fund in service, and resulting surrounded by excessively long time for the clothes to get really dry. Then something happed after 'x' number of runs that straightened the hose out to permit proper or near-proper flow of discharge air. WHEW!!
The simply thing I would suggest is to verbs out the exhaust vent to the outside. If it clogs up, air cannot circulate through the dryer as it have no place to go.