whirlpool s20dfbb20-a/g. Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › whirlpool s20dfbb20-a/g. This topic has 0 replies, 1 voice, and was last updated 16 years, 9 months ago by DRH. Viewing 1 post (of 1 total) Author Posts June 29, 2009 at 3:18 pm #46698 DRHParticipant been to above.unit still down down to temp o/k.fridge and freezer. All display flashing. customer had a mains power spike. could this damage pcb? 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