-Check ventilation around the fridge. You need approximately 10mm at sides and top with 50mm at the rear.

-Check if there is anything covering the vent at the front of the fridge.

-The unit must be 100% away from sunlight, and out of the weather, this is incorrect installation and voids warranty

-Check inner fan is going and that there is NO ice build up on the inner rear wall

-Check to see if you can feel a breeze coming out from the front grill.

-Check compressor definitely comes ON

-Check what temperature your fridge is set at.  If your fridge is set at zero it will cycle between 0 - 4 and keep your drinks on 2 degrees