My refrigerator keeps going into freeze mode instead of the temperature that i programmed into it.

You need to program the new board. Programming Mode:

NOTE: The Program Code is located on the Serial Plate on this unit after the word Code.

1. Press and hold the Door Alarm Keypad .

2. Press and hold Freezer Temperature Down Keypad .

3. Release the Door Alarm Keypad and wait 3 seconds.

4. The control will display PE to indicate the programming mode.

5. Entry is confirmed by pressing the Freezer Temperature Down Keypad once more.

6. The control will display the current Program CODE. This value should be validated with the



Program CODE printed on the unit serial plate.

NOTE: If the Program CODE is correct, the Programming Mode is exited by pressing Door Alarm Keypad for 3 seconds.

7. Press the Refrigerator Temperature Up Keypad or Refrigerator Down Keypad to change the digit value with each key press.

8. The decimal point indicates the selected digit. Press the Freezer Temperature Up Keypad to select the next digit.

9. Once the desired Program CODE is entered, press and hold the Freezer Temperature Down Keypad until the Program CODE begins flashing indicating it has been saved.

NOTE: If you attempt to enter an invalid Program CODE the control will not save the new code, but will beep. (The unit will NOT run with a Program CODE of 0000).Once the Program CODE has been saved the Programming Mode is exited by pressing any key. If the new code is incorrect this process should be repeated.

The Programming mode can be exited at any time

Keep your freezer to the mid point, and your ref to mid.
Wait 24hrs for results. If your refrigerator is still freezing, you may need a new thermostat. Get the model number, and go to searspartsdirect.com and look up the thermostat. Sometimes it's also referred as cold control.

French Door: Why Does The Control Panel Display "OF OF" Instead Of The Temperature? If the control panel displays "OF OF" instead of the temperature, the refrigerator is in "Cooling Off" mode. In Cooling Off mode, the refrigerator appears to be running normally, but the compressor is off so the unit does not cool. Cooling Off mode is used by retailers to save energy when the refrigerator is on the showroom floor.
Note: Cooling Off mode is also called Demo mode or Exhibition mode.

Disable Cooling Off mode by performing the following:

• Left Door: Simultaneously press and hold the top two buttons on the left side of the display panel until you hear a distinctively different chime sound when the display changes. This will either be a combination of "Energy Saver" and "Freezer", or "Energy Saver" and "Power Freeze/Freezer."

Source:
Why Does The Control Panel Display OF OF Instead Of The Temperature...

A good setting is in the middle of the thermostat range. For example, if you have numbers from 1 to 9, 5 would be a good number. If this setting continues to freeze, look for a bad thermostat or temperature thermistor.

Cooling Off mode (also called Shop mode), is designed for use by retailers when they are displaying refrigerators on the shop
floor. In Cooling Off mode, the refrigerator's fan motor and lights work normally, but the compressors do not run, and
the refrigerator and freezer do not get cold.
To start Cooling Off mode, Touch and hold the Energy Saver button and the Power Freeze button for 3 seconds during normal
operation.
The refrigerator chime sounds and the temperature display flashes OF OF.
To cancel Cooling Off mode, Touch and hold the Energy Saver and the Power Freeze buttons again for 3 seconds.

Source: http://downloadcenter.samsung.com/content/EM/201104/20110414114919054/110323-QS_Guide-POLARIS-EN.pdf

I solved this by taking it in and out of demo mode; hold power freeze and energy saver for 3 seconds.

If your control panel displays "OF" instead of the temperature, your refrigerator is in "Cooling Off" mode. In Cooling Off mode, the refrigerator appears to be running normally, but the compressor is off so the unit does not cool. Cooling Off mode is used by retailers to save electricity when the refrigerator is on the showroom floor.

Note: Cooling Off mode is also called Demo mode or Exhibition mode.

Depending on your refrigerator, to remove your refrigerator from Cooling Off mode:

• Either press and hold the Energy Saver and Power Freeze buttons for 3 seconds
• Or press and hold the Power Freeze and Freezer buttons for 3 seconds.

The temperature display re-appears after the unit is out of Cooling Off mode.

You need to replace the thermostat . When the thermostat temperature is reached , it will cycle the compressor off . When time to come back on , it will not start . Instead of turning the thermostat off , try tapping on the thermostat knob . If the unit starts , this will confirm that the thermostat needs replaced .

Sir, To solve this problem, you must open the compressor area at the back bottom of the refrigerator and chek the temperature of the pressure line. If the temperature is between 55celcius to 60 than its ok. Or else you need to change the refrigerant. I suggest you to contact the service authority.

Thanks for contacting Fixya.

I had the same problem ("OF" on display and not working) and just found a fix and it worked (on SAMSUNG site).It was correctly stated that fridge is in "demo" mode. You need to push and hold POWER FREEZE and ENERGY SAVER buttons (not "Fridge button and the Power Cool buttons" as it was suggested above).