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Error FF is freezer fan fault. This usually happens when either the rear board has gone bad or the freezer fan itself is bad and needs to be replaced. To check what is causing the error you can start with checking the fan which is located behind the back wall inside the freezer. Also check the rear board as it might not be putting the fridge into defrost long enough and is causing the ice to build up in the freezer and thus stopping the freezer fan from turning and so causing ff error. Leave the fridge unplugged for 24 hrs which will melt all the ice then plug it back if still the issue is not resolved and you hear the fan running then it is the rear board that needs to be replaced.
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