ABout 1 week ago, the dryer was not drying clothes as well as before
so the plastic ducting in the rear was replaced with an aluminum
(bendable) 4 inch duct. 1 week later, the dryer turns on and heat is
generated but the tumbler is no longer tumbling. Before calling a
repair company, is there something to try (without actually opening it
up)? Any tips would be great.