Hi, I have a Hotpoint WMA57 which seems to pulse the water inlet valves at the end of a program at the same time as the machine tries to release the door interlock. This continues sometimes for 10 minutes or more until the drum is half full of water.It can be stopped by turning the prgram knob to off. I suspect there is a suppression fault in the interlock mechanism possibly on the main control board. Any help ?