Indesit XWA 71451WUK washer won't stop Filling

[Robert Oram]

I’ve a problem with my Indesit XWA 71451WUK washing machine after moving house. It constantly feeds water through the Wash detergent compartment into drum at full rate throughout every stage of every cycle including Spin. Drain system set-up is correct (no siphon), as is water feed pressure. No debris in water valves or filters. Both water valve solenoid coils have continuity and correct resistance, and both valves shut off water completely on operation of either Pause or Power Off buttons, or when mains  power  is switched off. Pressure switch seems ok as drain pump kicks in as soon as drum water level exceeds max operating level and  runs until correct  waterlevel is restored, when pump stops. Pressure pipe blows through into drum ok. No error codes are shown. Any advice?