Have Sub zero side by side 561 Why does the temperature control not increase the cooling of the refrigerator? The milk and vegetables are spoiling.

The fresh food compartment is cooled by air being blown from the freezer compartment into the fresh food compartment. Something is restricting that air flow which causes your fresh food compartment to stay warm.

There is a panel, or door if you will, that separates the freezer and fresh food compartments. The freezer temp control determines how much cold air is allowed to escape into the fresh food compartment by opening or closing this panel.

If the panel is restricted from moving (stuck closed, for example), the freezer will get VERY cold while the fresh food compartment will be warm.

Try thoroughly defrosting the refrigerator. Possibly an accumulation of ice is preventing the panel from moving and/or is restricting air flow from the freezer to the fresh food compartment. It's a free fix and may solve your problem altogether.

If that doesn't help, or helps only temporarily, you may have a problem with panel itself or the linkage that connects it to the control mechanism. Unless you're skilled in appliance repair, checking and repairing these components will require the help of a service technician

Hope this was helpful. Good Luck.