Fridge knackered - repairable?

Lobster · 2013-04-05T11:58:34+00:00

We have a bog standard larder fridge about 4 years old which is suddenly not doing anything at all - it might as well be unplugged but for the fact that the light is on! Otherwise, dead as doornail. Stat is switched to maximum. I'm guessing a faulty thermostat (= probably diy repairable) or compressor (= new fridge time) - is that about right? If so, any ideas how to distinguish these? Google ain't helping. Thanks