I cannot find any info on the given model number.

If you are sure that the humming is coming from the motor, try manually rotating the drum in the correct direction. It should turn fairly easily.

If it does then odds are that your motor needs replacing.

Could also be that it is clogged solid with lint and this is jamming the centrifugal switch mechanism in the activated position.

Sounds like a motor problem.

A make and model number may help others help you.