Tenant states the following electric dryer issues : squealing noises and burn rubber smell. I change the belt and remove all the built up lint and the dryer runs great but stops after two minutes. Press the start button and only a "ackk" noise occurs. Repeated pressing of the start button results in just a click. Wait about ten minutes as the unit "cools" down and the dryer will run but only for about two minutes. What parts do you recommend replacing or checking?

Kenmore Series 90 dryer
Model 110.66902691

Thanks