Bosch tumble bryer WTB84200GB/09 Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › Bosch tumble bryer WTB84200GB/09 This topic has 2 replies, 2 voices, and was last updated 5 years, 5 months ago by dunston. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts October 31, 2020 at 10:31 am #98563 dunstonParticipant The dryer shows a E91 error. Two weeks ago it had the same fault. When the element was disconnected the error message disappeared. The dryer worked for two weeks. It is in a hairdressers – it works hard. Any ideas? October 31, 2020 at 2:05 pm #472872 electrofixModerator complete blank with this one odd the message disappeared when you disconnected something have you checked for earth problems, was thinking fluff on elements getting damp in use giving low earth fault long shot i know Dave November 3, 2020 at 8:12 am #472873 dunstonParticipant Thanks Dave. I’ll check for earth faults. Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In