I have a maytag dual cool side by side fridge, recently the ice maker has reduced ice production and the ice cubes are not fully formed ( Almost hollow). When you use the water despenser it makes a horriable banging/loud clicking noise, and will not dispense water. The model number is MSD2651HEW

Hi,
It sounds like you have a water flow problem. I would inspect the unit for ice building up in or around the freezer fan motor. If the ice is forming in side the freezer, the trouble could the a restriction in the fill tube. But this does not affect the water dispenser. The noise you hear could be the water line moving when water flows through the line, or your water valve itself could be the problem, like the valve shutters when in use.
The valve is easy to check, its located behind the unit in the back left corner. Remove the screw holding the valve in place, while dispensing water hold the valve and see if the issue is only the valve. If the valve is the issue this could cause both problems you have. Part number 67005154
Water Valve
Good Luck

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