Have you tried jiggling it?
Seriously, has it stopped working all together - or is it not getting cold? You could try testing the outlet, removing/unscrewing the back plate and dusting (you'd be surprised how much dust gets back there), is there a temp dial inside you could check, or perhaps it might need freeon(?) Since you have the fridge, maybe you can put some big bags of ice inside.
I remember prince albert in a can & Is your refrig running?