Fisher& Paykel GWL10U2 (eco smart) wash machine?

Years of dependable service ended with our FP model GWL 10U2 eco smart wash machine not pumping out its water and an audible beeping and wash progress lights spin, rinse, & wash remaining lit. Selecting "diagnostic mode" as per FP service summary reveals no default codes. Checked (removed) drain pump for obstruction-(none noted) pump spins freely, checked diverter valve-no obstruction, replaced with new one just in case, checked for plug in discharge hose (to sink) no problem. Drain pump test in diagnostic mode turns pump on and recirculates water back into machine not to sink. Seems diverter valve is not recieving signal to drain wash machine there-by stopping any further washing progress. Possible motor controller module problem????????