Hello,
my WD420 is going straight into final spin when any program is selected. The machine doesn’t actually spin the drum, it just rund the discharge pump for a minute then stops.
I have checked the brushes – ok.
Checked pump – clear (if a little bit noisy)
Also checked the thermal fuse in the top of the heater duct – o.k.
If you have access to a megger or suitable multimeter then the first thing to do is an insulation test on both the heater and the motor. Earth leaks on the heater often cause strange faults.
Failing that then the woeful Indesit electronics could be at fault. 😥