Necht WQP 12-9319 dishwasher Home › Forums › Public Support Forums › Help And Support › Dishwasher Help Forum › Necht WQP 12-9319 dishwasher This topic has 0 replies, 1 voice, and was last updated 11 years, 1 month ago by Gastro. Viewing 1 post (of 1 total) Author Posts March 11, 2015 at 1:19 am #84365 GastroParticipant Hi,where is the pressure switch on this model? Any other troubleshooting advice on error code E4? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In