The water dispenser on door will not shut off.

frozen water line in fridge door, will be frozen about 80mm from where water comes out,could try a hair dryer or shut down machine for 1 day with door open.

Check the solenoid valve is not stuck open. It lets water in, pushing cold water out, and if stuck will not shut off.. It may even have a broken spring, but that is quite unusual

This could be caused by a malfunctioning fill valve. Here is the one it calls for. Valve is in back, it is what water supply line connects to.

1light not work , may lightbuld loose in the socket , or door switch
2 ice maker not work? may the ice maker arm shut-off. sut-off arm to be on(sure be down position)
3 is the ice maker switch in the off positio ( on some models)
4 is the freezer door not closed completely ? if it will not shut all the way,push the door firmly shut for the water dispenser poblem
5 check water filter. or water valve clogged or bad? replace them if necessary
good uck

most fridges stop dispensing water when you open the door. Find the door switch and make sure fridge interior light goes on/off when you manually press door switch. This would show you that the door switch was faulty.

If the water connection to the appliance is one of those watts flood-safe water lines, it may have stuck shut. I've seen this happen when the house water pressure is too high.

Does it still make ice?

If so, then the water connection is good, and either the switch in the water dispenser has failed or the water shutoff valve for the water dispenser has gone bad.

Some models have a problem with the water line getting frozen, such that simply leaving the light on in the water dispenser compartment overnight and/or manually defrosting the unit can get it working again.

Sounds like the water activator switch is sticking. It may help to clean the area where the switch is including the hinge. Remove the dispenser cover by gently prying starting at the bottom going round and round a little at a time to prevent from breaking it. When it's off the screws will be exposed to access the other components.
Since shutting the door stops it the above is most probable but the water inlet valve on the back where the water supply comes in could be sticking.

The most likely reason for the leaking at the water dispenser is the dual water control valve on the back and near floor is leaking water while shut off. The only option is to replace the water control valve. Sea Breeze

sound like a crud in the line somewhere. Shut the water off, remove the filter element, and blow air in the water dispenser. If that doesn't do it, remove the line after the shut off, and blow air in before the filter.

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that is not a problem with your switch you have a bad water valve replace it and you should be fine

if you wich to disable the despenser for water in the door just unplug the electrial connector on the water valve it has 2 selenoids on it one is for water in the door it has the largest plastic line under the selenoid
just unplug the connector to that selenoid
you will still have ice and it will despense through the door