CONCERN: Customer reports refrigerator lights don't work, no display but unit still cools. CAUSE: Found unit to be in sabbath mode that cools but shuts all lights off including display. CORRECTION: reset by pressing lock and lights at the same time for 3-5 seconds, tested. Operation now normal. CONCERN: Customer reports dryer is making a loud noise. CAUSE: Found dryer idler pulley and rear rollers failing. CORRECTION: Replaced dryer idler pulley and tested, operation now normal.