Whirlpool dryer not tumbling
The belt:
The belt measures 93 inches in total length, has 4 ribs, and is 1/4" wide. The job of the belt is to keep the drum
rotating during the complete cycle.
If the belt is stretched out, this could make it slip on the motor pulley and
reduce the drum turning speed.
The drum support rollers:
The drum or tumbler rides on four drum support rollers, two on the front and two on the rear.
When the lubrication that was put on the rollers at the factory, dries out, the rollers
center bearing wears out.
This will cause the the drum to be off center and the dryer starts to make noises and it slows down the
drum speed.
The idler pulley:
The idler pulley is use to apply the
necessary tension on the belt. This pulley consist of a metal bracket and a plastic wheel or a teflon slide.
The idler pulley with the teflon slide cause the dryer to be noisy and wear the belt much faster that the idler pulley with the roller on it.
A worn out idler pulley sometimes allows the belt to derail and that will stop the dryer
drum from rotating.
The drum seals:
These type of dryer uses a front and rear drum seal. If the any of the seals becomes unglued from the drum it could get between the drum and the cabinet preventing the dryer from
tumbling.
