Hi. I had a power cut this morning and since it happened the front panel is constantly flashing. Pressing and holding any of the buttons doesn’t work either separately or together. I have switched it off for over ten mins and still flashes when i put in back on. The compressor is working as the freezer not losing temp and if I leave fridge door open for a while and then close – compressor comes on and temp comes down. Does the main PCB board need replacing, Ice dispenser also stopped working last week. Any assistance much appreciated – model samsung RS53