I have a similar problem. it is intermittent.
It pumps out with gusto. But not always.
It has a new pump. So fins OK !
Told it was the timer. Changed it. No different.
I think there is a diverting valve solonoid operated that my be the problem.
I hate this poke and hope.
Regards
Disparately need service manual
hari siplis
August 2011