The owner says the refrigerator compartment(the French door area) went to 10°c every 2 days, but the freezer is always good. I am not sure the problem is the refrigerant diverter or the main Pcb. Replacing the Pcb is a lot easier than replacing the diverter. So I am going to replace the Pcb tomorrow. Any input would be appreciated since I am not familiar with this kind of problem.