Logik fridge freezer comes on but not cooling

[jjezck]

2 year old logik fridge freezer stopped cooling. I checked the compressor and that turns on. However the fan in the fridge which moves the cold.air from the freezer to the fridge only turns on if i unplug and then turn back on and then only runs for approx 15 seconds compressor still going though for around 10 mins. There is a led light for the temperature of rhte fridge freezer the fridge one flashes at 4 degrees which must be an error code but i have no way of knowjng what the error code would be.