WATER DISPENSER NOT WORKING
It might be that you have a restriction at the water supply line serving the fridge. Check it for good flow (have bucket and towels handy!) If supply line is good, then move onto the fridge to check the water inlet valve(s). as newer models have 2 or 3 inlet valves, a main water valve for the entire unit, and possibly one each for the ice maker and water dispenser past the main inlet valve (solinoid).
You can check these by simply shutting off the main supply to the fridge from the house water line 1st, and then removing each water line from the supply side of the fridge and seeing if you have water flow from the house to the valve side. If you do, then reconnect the lines to the fridge valves and see if you can get water flowing to the other side of the solinoid/valve when you have someone try to get a glass of water from the water dispenser, etc.
It is possible that there is an obstruction in the lines, by not very likely. Normally it is a failed water valve(s) (solinoid) that causes low flow or complete loss of flow, especially if you've changed the fridge water filter or replaced it with the "cap" which eliminates filtering of the water.
It is that you'll likely have to replace at least one, maybe more, of the fridge inlet water valves. If you have the time, try to zero in on the failed one by bypassing each, one at a time, until you get water flow. That way, you'll only have to purchase just the replacement valve needed to get things working again.
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