Siemens SE20A591GB/17 Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › Siemens SE20A591GB/17 This topic has 1 reply, 2 voices, and was last updated 16 years, 1 month ago by eastlmark. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts February 20, 2010 at 8:35 pm #52665 eastlmarkModerator did a pressure chamber on one of these (SE20A591GB/17) today and then noticed this thing I have never seen before on the door next to the dispenser: Sensor – Part number : 489454 Spare part data for Sensor OptoSensor – automatic degree of hardness Packaging unit 1 132.39 GBP it has a clear plastic cover and is full of grunge, the customer described it as “discusting”. can it be cleared out or is a new one the only option? February 21, 2010 at 9:37 am #312665 claysideParticipant Re: Siemens SE20A591GB/17 Had a customer try to clean she broke front off and I ended up changing. £112.67 plus vat for the part 😯 clayside 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