Whirlpool Top Mount Fridge not cooling but lights... I have the WORST whirlpool ever! Its now

Question

I have the WORST whirlpool ever! Its now nearly 5 years old. Before its 2nd birthday the fan went. 2 months ago the wiring at the back totally burnt out and we were only saved a possible fire by the the house safety switch. It cost a fortune to fix. Today the fridge was warm but the freezer ok. There was a slight hum from the fridge (not its usual noisy self). Now its totally SILENT (not motor or fan to be heard) and it seems as if the frezzer is now defrosting too. The repair people may get to us next week but I am in Qld Australia, its hot as h**l and I have two babies so I need my fridge. I am very fed up with Whirlpool! Any suggestions appreciated! Only the sealed parts are covered by the warranty. Only the lights seem to be working!!