Furthermore, why does the dryer spin slow?
Some dryer designs use a number of hard rubber wheels to support the rear of the drum. Those support wheels wear out with time, often developing flat spots, and this causes the drum to become stuck and stop turning under heavy loads. This problem can often be diagnosed by turning the empty drum slowly by hand.
Subsequently, question is, how do I know if my dryer rollers are bad? You can check the drum rollers by opening the dryer door and looking at the back of the wall. The drum support rollers should be checked if there is a gap between the rear of the tumbler and the back wall.
One may also ask, what is wrong when dryer won't spin?
If the dryer doesn't spin, it could be that the rubber drive belt looped around the dryer drum is either stretched out too much and not causing enough friction to turn. The dryer not spinning could mean that you have a broken drive belt.
Can a dryer belt stretch out?
Dryer Belt Sounds
Over time, the belt in your clothing dryer can get worn out and stretch in size. To fix this sound and make the thumping sounds go away, inspect the belt for wear and tear and replace or tighten the belt/pulley if needed.