Bosch diswasher overfilling Home › Forums › Public Support Forums › Help And Support › Dishwasher Help Forum › Bosch diswasher overfilling This topic has 0 replies, 1 voice, and was last updated 12 years, 5 months ago by jejv. Viewing 1 post (of 1 total) Author Posts November 14, 2013 at 10:29 am #78103 jejvParticipant Bosch diswasher overfilling Model:SGS56E12GB/90 Overfills, “check water” lights up. Drains when reset. During reset shows codes C9 then P0. I have seen comments about cleaning the level switch, but it’s not obvious to me how to remove it. I have multimeters, ‘scopes etc, and some experience of designing mains-powered PSUs. 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