Hoover Wdm150 Drum Wont Turn

This machine although old has hardly been used and was working fine.

The drum does not move during any cycle, I have cleared the filter at the bottom kick plate.

I have checked the black hose on the bottom for blockages.

I have removed the top and checked for bad connections from the control block

I have checked that the motor cables are not lose.

The belt is intact and I can manually turn the drum

I don't know if the problem is the motor or the switch block or something else.

The machine fills and empties and blows hot air. The switch/Dial does not turn automatically as it should, when I manually turn it slightly it starts the next phase of the cycle but without the drum moving.

I don't know if the dial wont turn because the drum has not turned.

What could cause this?