Refrigerator Jenn Air, freezer at bottom. ice keeps building up in freezer, then it doesn't get cold up top.

ice is water freezing so check where the water is getting in ( leaking water bottles being frozen, bad door seals, too frequent door opening etc

Hi,

Check out these tips...they can help you figure out what is going wrong withyour refrigerator

Refrigeratornot Cooling or Fridge not Cooling

How to Defrost Refrigerator DefrostTimer Problem

WaterRunning in refrigerator from Freezer

Refrigeratoror Freezer not Cooling or Getting Cold
heatman101
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Ice building up in the freezer is not good, it means that your defrost heater is not working.The purpose of the defrost heater, as the name implies, is to prevent ice from building up on the evaporator that is inside the freezer compartment. The heater and/or thermostat failure is responsible for the ice building up in the freezer. Replacing both of is recommended, but if the heater shows continuity with an ohmmeter, just replace the thermostat; if in doubt, replace both of them and your refrigerator should be back to normal. Do not forget to clean the refrigerator condenser fins.

It sounds like a defrost system problem. A bad timer, heater or thermostat can cause frost to build up on the coils and block air flow to the refrig side. Check out ACMEHowTo.com for troubleshooting the defroster problem

If the freezer is staying cold it sounds like a defrost system problem. A bad timer, heater or thermostat can cause frost to build up on the coils and block air flow to the refrig side. Check out ACMEHowTo.com for troubleshooting the defroster problem.
There is a small duct between the freezer and refrigerator side if this is blocked the frig side won't cool.

have you tried to re align the hinges? is the hinges broke?

checkcoldcontrol or you have defrost problem

you have defrost problem

I have a side by side jenn-air refrigerator, the freezer compartment working fine and making ice like it should, however the refrigerator compartmant is not cooling, no cold air is felt, I need advise.

As others have noted, the solution is counter-intuitive but easy. The refrigerator keeps cold on this model by cold air coming over from the freezer side. So most likely it is ice blocking the freezer coils or the fan that moves the air. So turn off the freezer and defrost it. You will need to remove the big white plate on the back of the freezer (on the inside) to most effectively get the ice to melt. You can use a hair dryer for this, or just leave the freezer sitting with the door open for several hours.