Gw611?

Hi - I have a fault on my f&p top loader GW611. Two cycle lights are on and spin cycle light flashes, and when I press Start the lid lock light goes on and machine won't start. I took out bowls and cleaned drain of obstructions but the machine computer doesn't seem to register this and still won't work. Any help appreciated now drain is cleared as I don't think there is anything wrong with the mechanics of the machine now, just it's brain!

Thanks - I'm a single Mum and really don't want to have to. Us a new machine.