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First off try turning it to a lower setting, or try putting some bottled water / cordial in the fridge.
Theres no problem with the fridge. The more you open the door, the more dirty air gets in that causes condensation.
Open your fridge less
He was was last online on November 2017.I know this thread is old now but I have the same problem in that a block of ice forms at one side of the drainage lip at the back of my frost free fridge. Did the OP ever get this sorted or did you buy a new fridge freezer?