whirlpool s20b-rsb21-a/g freezer problem. Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › whirlpool s20b-rsb21-a/g freezer problem. This topic has 0 replies, 1 voice, and was last updated 14 years, 9 months ago by monkey. Viewing 1 post (of 1 total) Author Posts June 29, 2011 at 9:27 pm #63668 monkeyParticipant Hi Guys the freezer evaporator is not defrosting,the element had a earth fault, so I replaced it but the problem is still there,you get 2 weeks then it needs to be defrosted manually.do you have any technical manuals for this model. 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