Could not find much info on this unit.

Try removing the power from the unit for 5 minutes or so to see if it will reset. This is a long shot.
Check that the evaporator fan is running.

Since you say the compressor is running continuously I would remove the evaporator cover and check them for the frost pattern.

If heavily frosted/iced up you may have a defrost problem.
Could be the board, the defrost heater or the defrost thermostat.

If you only have frost where the freon enters the evaporator coils or if it is spotty, then you may have a low freon problem.
Low freon often is the death knell of a unit as getting it repaired and finding the leak can be expensive. I would check your warrant the sealed system usually has a longer warranty than the rest of the unit.

The following may help you diagnose it.
Refrigerator Repair Guide: How To Fix a Refrigerator - ACME HOW TO.com

http://www.applianceaid.com/refrigerator.html
See Item 20, take a look at the example pictures at the bottom of the page re: low freon.