How can I fix my Beko WMA510W Washing machine?

On start up it fills with water as it should,but then it does nothing.The drum doesn't rotate at all in either wash or spin mode.Have checked the belt is attached,not being technically minded I'm unsure about the motor although looking at it,it appears to be fine.It drains properly at the end of the cycle as well.Any help will be massivley appreciated as I'm rapidly running out of solutions & am loath to shell out for a new one if theres a simple solution.