The water dispensor and ice maker have no water pressure. There is plenty of pressure up to the filter but very little past the filter. The filter is new.

On these models I've noticed that the temperature in the ice maker area warms up due to a ball of ice forming inside the freezer compartment ice maker fan that has vent going to the ice maker. Until it is found whether or not that ball of ice is blocking the vent and fan you won't be able to go to the next step. The switch on the ice maker will test the ice maker by filling it with water and rotating the Forks that dump the ice into the ice bin Appliance 911 Sea Breeze

Used machine? If new seller needs to help. If under warranty check the MFG customer service number.
If used this may be the reason it was sold. If Used there is a possibility the water filter needs to be replaced. Yes they'[re expensive, but they can interfere with the process. Does the Cold water device work? Is there plenty of flow? If so it's not filter or pressure. If it barely comes out, then it's probably filter and may be the ice maker issue.

Don't forget that your dual water control valve has two sides. One side is for the ice maker and other side is for water dispenser. The water dispenser side may have recently failed causing water to not enter water filter area or dispenser, Thanks Sea Breeze

5220JA2013A Water Inlet Valve

A lot of filters ( not all ) do not even access the ice maker . Only the water dispensor . If your water dispensor is working fine , then you need to replace the dual water inlet valve behind the refrig . This is the piece the wall water line connects to . It is called a dual valve because there are 2 coils on the valve . 1 for the ice maker and 1 for the water dispensor .

two problem one water vale are the line were water come out is frozen the water splashes back and line freezes are water vale leakes

My Jenn-Air refrigerator (JRSD2790) quit making ice, dispensor works, water dispensor works. Do I need to replace the entire
ice maker?

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I bought a brand new smartwater replacement filter and after a very short time, my water stopped coming through the door.. took out the new replacement filter and inserted a brand new one .. problem solved.. apparently some of the g.e. smartwater filter replacement cartridges don't have the high enough two plastic inserts which are attached to them at the top of the filter when you screw them on... if you have taken your cartridge in and out a few times, i think it wears down the plastic so it doesn't fit properly and won't put up whatever it is supposed to push up to make the water come through.. I personally think this is a g.e. problem with the replacement filters...

you have prime the system air out of the water lines this is easy to do
put a glass big enough to cover water dispensor outlet cause its going to project water out at you press and hold button till water starts to run smooth
these fridges will spit water at you when you prime the system at first cause theres air blockage in lines

Hollow ice cubes are due to low water pressure to the fridge. Water thru the door should have good pressure behind it. This is a good indicator of water pressure. Should be able to fill a glass quickly. Causes for low pressure are self-piercing saddle valves on the water line (switch to drill type (1/4") valve) or reverse osmosis system or filtering system on water line to the fridge. R.O. systems should not be used. Increase water pressure and that will fix the hollow cubes. The loud noise may be the sound of the water valve on the fridge when it is acivated. This sound is normal and some are louder than others.