A13 Fault code on Indesit Evolution DE 73 Dishwasher?

We have followed the instructions given on here about taking the front off the machine and making sure the blue wire to the soap dispenser is sited correctly but to no avail. Our diswasher has the A13 fault code coming up on it and doesn't get past the draining noise stage at the beginning of a cycle. This machine is so temperamental that we're getting fed up with trying to sort it out. Any suggestions anyone?