Hello. I have a Samsung Dryer for 5 years now and it seems like the dryer is getting weaker? When we put a normal load in now, (not full) it stops after a few minutes. This happens on any cycle and the door seems to be closed tight. So we would have to take out about half the load and it would be fine. Does the motor get weaker over time or is there something wrong with it Mechanically? Please help and thank you in advance.