Hi Phil,
I've got the same problem with my Indesit Model WN1263 WG.
It tries to start spinning but immediately cuts back to slow speed rotation.
I've had a look at the motor but this seems OK.
Another thought is that the pressure tube is blocked/pressure swithch faulty, fooling the system into thinking the tub is full of water.
I've not had time to check this.
Otherwise I feel it must be the electronic control board - an expensive option, Paul
Paul
October 2003