Looked at a Liebherr F/F. Cnes 3866. Index 20B/147. Service no. 0974506-02. Fault F2 coming up. Fridge and freezer both working but fridge not quite as cold as normal. Fridge circulation fan doesn’t seem to be coming on so I suspect that. Could anyone help on the fault codes please, so I know I’m barking up the right tree (or else barking mad… 😀 ) Thanks, simon