Neff S51M66X0GB/D5 Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › Neff S51M66X0GB/D5 This topic has 1 reply, 1 voice, and was last updated 5 years ago by timdowning. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts March 17, 2021 at 5:07 pm #99300 timdowningParticipant Neff dishwasher. 4 years old. E12 error at the end of the cycle but apparently it is cleaning ok. They did have an E15 error which I cleared in the normal way but apparently this E12 was there before they had the E15. Any ideas? Thanks, Tim. April 14, 2021 at 8:15 pm #475785 timdowningParticipant Just in case this will help someone; E15 cured by replacing the sump unit. (Weeping) E12 cured by replacing the heat pump. (Running slow). Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In