hoover wdm130 fills continuosly instead of heat

Hi gents
have a wdm130 3761600001 select programme fills washes timer move on to heat then the nuetral goes to hot and cold valve and not heater and wash action stops flooding unless you switch off fitted new timer as it was stuck not wired wrong module ok any ideas poss p/switch can any one help with wiring diagramme timer is the old brown sided one cheers alro