There is no water flow from the above fridge freezer (twin evap model)

The pipes appear to be free from ice.

The lever on front of drinks depenser lacks compression and there is no noise when it is pushed in.

please help.

Also I have just replaced the fan in the fridge part of the fridge after it finally having packed in.

it was occassionally icing up. are ther any suggestions why this is happening and Am I going to have to keep removing the ice nad replacing fans?

Thanks in anticipation