Fridge Freezer turns itself off and behaves strangely. Lamona HJA6856

Fridge Freezer turns itself off and behaves strangely. Lamona HJA6856 2 days ago i noticed that my fridge freezer was kinda “pulsing”. I don’t know if it was the compressor or the fan, but it sounded more like the fan. It would spin up and wind down, over and over again every few seconds.