Re: GE ZISB420DMC Refr Ice dispenser flap door does not close reliably. Can the flap door and solenoid be replaced from the front opening or does the freezer door have to be disassembled for repairs? C.Matt

Many Kenmore side-by-side refrigerators have an ice and water dispenser installed on the outside of the freezer door. The ice dispenser has a flap that opens to allow ice to be released, and closes after dispensing to keep the cold air inside of the freezer. The dispenser flap is opened and closed by a solenoid, that when energized pulls the plunger attached to the flap, opening the door. If the flap stops opening and closing, it is likely due to a faulty solenoid.

There are multiple parts to the dispenser for GE. You say that door isn't closing properly, which could mean that the solenoid isn't working properly, or that the door flap retainer itself is broken, I want to say that they make a complete kit for it but not for certain,

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jason_4570d45317834dd3

GE has a problem with the flap on the door which lets the ice out , not closing due to a rusted solenoid behind the panel . If this flap does not close , frost will get inside the ice bin , not letting the bin flap open to let cubed use come thru, only crushed . You can defrost the ice bin front and replace the door flap solenoid easily . If this is the problem , repost about replaceing the flap solenoid for further instructions if needed .

This is due to a rusted solenoid plunger .You will need to remove the top freezer door hinge cover ( 1 screw ) , and disconnect the plug there . This will remove power to the dispensor . Using a screwdriver , insert it just behind the dispensor board , and twist , to pry the board off . Remove the 3 plugs there , and remove the board . Remove the 4 screws on the white cover , and slide the cover out and off . In the top right , in the dispensor area , you will see the solenoid and plunger . 3 screws hold the solenoid on . Lift the flap , and the plunger will lift off . Part number for solenoid and plunger is WR62X10055 . The closing spring is probably good , and if you are pushing the flap closed , you are moving the plunger itself , instead of it gliding inside the solenoid , to the closed position .

The stuck on crush mode , is caused by ice frosted in front of the ice bin , blocking the ice bin flap from opening , when calling for cube ice . Removing the ice bin and cleaning or defrosting completely , will solve this problem , AFTER , resolving the frost in shoot problem .
Remove the top freezer door hinge cover , and disconnect the plug there . This removes any power , going to the door . If no plug there , remove the bottom kick plate , by removing the screw on each side in the front , and disconnect the receptical from the wires comming from the bottom of the freezer door .
Remove the dispensor control board , by prying , or pulling , from the bottom of the board . Disconnect the 3 plugs to the board . You should now see the white dispensor cover , being held on by 4 screws . Remove these screws , and slide the cover out .
In the top right , inside the dispensor area , you will see a solenoid with a plunger , with the door flap arc , inserted into the plunger . Usually rust inhibits the movement of the plunger , keeping the door flap from closing completely .
Remove the 3 screws holding the plunger and solenoid ( part number WR62X10055 ) and replace . Cleaning will not help , due to rust will return .

You should replace the dispensor solenoid and plunger due to rust . Very common problem with G.E.

There is a ice door solenoid for your dispenser, its probably the problem. Costs about 35 dollars and just about anyone can replace it.

the front panel should just pop off,but you want to look at the solinardmthat is most likey what need replaced,let me know if it is rusted in the open position-mike

I have a similar problem. The repair guy took a look at it and stated everything is working and did not order any solenoid or any other parts. After he left the problem returned where ice comes down the chute it tends to lodge and keep the door open. I am disagreement with the repair guy and am leaning toward the idea that the spring has lost tension and is just too weak to close with any authority. There is a video on how to replace the spring on youtube. This is what I will be doing next weekend and will try to return to post results.

There is an electric solenoid that opens the door. If you look up inside the dispenser you can see the solenoid. Either the solenoid is bad or the dispenser module that puts power to it is out. You will need to remove dispenser front and check for voltage to solenoid. If you have power from module, replace solenoid, if no power, replace both parts. It is common for solenoid to short out and damage the module so that both must be replaced. If solenoid is shorted and you replace module, new part will fry.