I am working on a celfrost 1000 ltr upright freezer. The evaporator fans connected to the Dixell controller XR06CX is not working. Also the fan indicator LED also not glowing. Fan is connected to the terminal 2 of the controller. If jumper the line the fans working fine, and if open the door found the fans shutting. What is causing the terminal 2 missing output power? Connected a spare controller and behaving the same way, Please help..