I went out to this one and you switch it on push start the pump runs fo a milli second the the machine stops.I changed the outlet pump just in case it was faulty.
Checked heater pumps valve door switch etc, the aqua stop is fitted at 45o but appliance has worked for five years for the last few months she says it has been stopping halfway through so just kept pressing start till it went again?
When you change the solenoid, check feed to it aswell when you start any cycle.
Ive had a solenoid go and damage the PCB causing it to have a constant 240v feed.