Hi, I have a Samsung double door (twin cool) fridge. It displays d on the temperature display. I have replaced a faulty thermal fuse in the freezer section. I am able to reset the error by holding in the "Quick Freeze and Quick Cool" buttons for approximately 8 seconds. The frigde then starts-up & functions correctly. It reeches temperature setpoint, switches off and starts-up normally. The only problem is that if the mains is switched off, it does not start-up by itself and keeps flashing d on temp display. Any ideas what i can do to resolve this. Thanks!