Answer Hello Bob, we do not have any service information on this model however usually for Samsung range models the diagnostic sequence is , Press the Clock pad, then Touch pads 1,2,3,4,Touch Clock and Wake Up pads together for 2 seconds, error codes are displayed, Press the 0 pad to display last 5 codes, Press off /clear to exit test. Read More... Answered by AppliancePartsPros.com | Friday, January 21, 2022