Drum not turning?

Hi,
my INDESIT washing mashine stopped working. Everything seems to be all right, just the drum is not turning. The motor doesn't seem to be burned (didn't smell or anything and the cables are attached properly and unburned). The mashine goes through the whole cycle, fills the water, warms up the water, drains it, etc. but it wouldn't turn the drum around one single time.

We thought the motor might be broken but it doesn't seem to. So do you think maybe there is some another problem in the wiring?

Thanks,
Tomas