Hotpoint Aquarius FDW60 Starting Problem?

Hi, I've had for the last 2 days a problem with the dishwasher, when you switch it on you can hear the pump kick in but hen after a few seconds the Eco light comes on and nothing else happens. I've had the machine out, tipped it up drained all the water out, then replumbed it in, and it fires up and runs through the cycle, until it comes to draining out. Then you can hear the pump runiing and running but the machine will not click over to drying. Switch the machine off, try to switch on again and it straightaway faults, empty all water out and she'll start up. Is this likely to be the flow meter playing up, as a lot of places reckon. If so where is the flow meter located?