Have a fridge the hr lite constantly is flashing display is turning off automaticly and compressor tries to start after adjusting display to off then turning back on compressor trys to start 2 sec and stops no hum is heard. How can I rule out if it is the compressor or main board or temp control board user interface? I replaced relay overload on compressor still does same thing. Also display is going dim bright dim bright never steady. I read online that blinking hr light is an error code.