Hi

I've transported a working fridge freezer to a new location and having reinstalled it, it now doesn't work. The warning light system on the door control panel indicated a thermistor required replacing. I tested both the fridge and freezer thermistors and they seemed ok but still bought and fitted a new one anyway but the warning system is staying the same and no cooling of the fridge or freezer is happening. Is it likely to be the pcb or something else? Any help would be greatly appreciated.

Thanks in advance