On 11 Mar 2007 20:00:11 -0700, wrote:

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.

The belt may have slipped off. Is there an access door on the lower
end of the dryer? Does the top of the dryer lift off? If so just
reposition the belt or replace it.