I have a Westinghouse RJ390M fridge. The problem is, freezer works, but it produces over cooling and forms ice cubes in all freezer parts. But at the same time, the refrigirator is not cooling properly.. Can you tel me, what is the value to be set in the control air flow and other settings. Please help me to solve the problem as early as possible. In the freezer part, it produces over cooling, it forms more ice in the freezer room.