1) remove power, disconnect the j2 connector from the board and restore power. If the compressor fires up, you have a bad board and a bad evap or condenser fan motor. If it still won't start, reconnect j2 and go to next test
Many times you cannot see damage to a relay. So the best method is to test the board by disconnecting the fridge and jumping Comp (j8) to line (j1). Make sure to keep the blue connector in place. Restore power and see if the comp fires up. If it fires up, you need a new board, if not you have a start device/compressor issue.
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