Hi a few months ago my AEG fridge freezer's alarm started beeping and the fridge would stop cooling. I was advised to turn off the whoe fridge freezer with the freezer door open for about 6-10 hours and that would fix the problem (blocked evaporator). It did and usually the fridge alarm won't beep for a few days, sometimes weeks. This week the fridge stopped cooling without any alarm beeps, and turning the fridge freezer off for a while doesn't seem to fix the problem anymore.

Any ideas? I hope I don't have to buy a new fridge as this one was already too expensive!

Many thanks!
Jennie x