To avoid personal injury or death, disconnect your appliance from its power source
before you start any troubleshooting or repair work. Use caution when working inside any appliance.
There
are a few things that will keep the drum from tumbling, the belt being
broken or slipping badly, the motor being seized, or worn support parts.
Dryers have a belt that turns the drum. If the belt is worn or broken,
it can't move the drum. Just replace the belt, and while you're doing that,
you may want to check the idler pulley. Wear on the idler pulley can cause
the belt to break. Worn out glides and rollers can also create extra stress
on the belt by making the drum harder to turn. If the drum is harder to
turn, the extra stress could have broken the belt.
Normally, you can hear the motor running, especially if it's the belt or
idler pulley that's the problem. If you don't hear the motor, and you hear
a buzzing sound instead, the motor may be seized and you'll probably need
to replace the motor or motor start capacitor. Remove the belt, then check
for any blockages in the blower fan housing and try to turn the shaft on
the motor by hand.
If it's too hard or impossible to turn the motor shaft, and the blower
fan housing has no obstructions; odds are that you need to replace the motor.
If the motor turns easily, run it for a few seconds. If it runs good without
the belt, you may have a problem with the idler pulley or the drum rollers.
Try rotating the drum by hand. If it's hard to move, fix any problem with
the idler pulley, glides, or drum rollers, reassemble the dryer, and test
it again.
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