Fridge not getting cold, freezer almost not freezing?

Hi

Have a Candy Fridge freezer and the fridge does not get that cold, the coldest it has ever got was about 10oC, the freezer however was always ok, recently we have had hot weather and I have had to turn the darn thing up to max to allow me to keep milk for more than a day or so, this seems to of made it worse.

Now the freezer does not seem to freeze anything, it gets cold and the stuff in the bottom seems frozen but bread, fish ect in the top draw seem very soft, sort of allmost frozen but not quite there.

There is a fan in the top of the freeser and this is spinning pretty much all the time also the compressor pretty much runs constant, the coils on the back of the freezer don't get that hot.

I have tried to find the thermostats but I think they are located in the rear walls of the fridge and freezer 2 wires go to each, and I can't get to them as the condenser pipework is in the way

Is this a bin job or can it be fixed ?