On start of program it pumps, then fills, then fills some more… The machine does not tumble (yet the motor checks out ok and will work if spin is selected), nor does it initiate the heating process (yet the heating element and the thermistor are both operating with no earth problems).
Are there issues with the boards on these machines?
I have put P.C.Bs in a few, but before you order one check that the plugs are fully onto connectors of P.C.B.
Have you checked diagnostics for any fault codes?