Refrigerator is producing water which seems to drip down from the top rear center of refrigerator which is below the freezer. The amount is 1 or 2 cups per day and it collects below the bins at bottom of unit. I am using a bucket to collect the water that is placed below the drip. No water or ice is visible in the upper freezer section. Whirlpool E721GK

Remove the food and the ice maker from the freezer ( if equiped ) . Remove the rear freezer panel . Using a hair dryer , start in the middle , below the coils , defrosting , until you see the drain hole . Use hot water to help defrost the hole . Once water starts going thru the hole , use a small hose inserted into the hole , and blow thru , to remove any unseen debris in the drain line . Use an ALUMINUM or COPPER solid wire , 14-16 guage , with the insulation completely off , and insert one end into the drain hole as far as possible without any force . Wrap the other end about 1 1/2 to 2 turns , around the black rod (defrost heater) , above the hole . When refrig goes into defrost , the heat will transfer from the heater , to the wire , keeping the hole from freezing up again .