Hi,
That sounds like a bad new part...but something happened now and the freezer fan does not come on nor the compressor or fan at the bottom of fridge.
LINK> Main control board assembly with installation instructions
Power into the board ( see attached ) but things are not running is a bad board.
Maybe not all, but the damper and thermistor would probably be a good idea...I should of replaced the thermistors when I installed the new mother board.
LINK> Damper & thermistor assembly
jeff.