Ariston a1600wd not working

There is a filter of sorts in the pump inlet pipe, its a big item catcher coins etc, but thats got nothing to do with the module error wich is a pricey item at £120! I've had one go already and in the last year, a inlet valve plus a control pcb panel in fact its almost a NEW machine! i'll never buy another hotpoint or ariston again. The machine is two yrs old!