Re: F&P GW509AU fails to pump out
Hmmm.
First thought was something restricting the impellor, but you seem to have covered that.
When it fails, does the pump motor seem to be hot? There is a thermal cut-out in the pump winding, which will shut the pump down if it overheats. The pump should spin with a slight resistance if you spin it by the cooling fan. It should not be rusty or wet. It’s also worth checking the wiring at the terminals and the turn under the drum for chaffing, breakages, etc.
Do NOT touch the pump with the machine plugged in – the pump is permanently live.
If all the above checks out, I can only suggest some sort of logic error with the computer board.
Penguin45.