Check and see if the damper door in the air flow control is closed.
The damper is located in the top left corner of the fridge section.
It controls the air flow from the freezer to the fridge.
If the door is closed you could have a broken damper door.
There should be a test sheet behind the kick plate.
The test sheet will help you test the thermistors to see that they are working.
Here is a link to the parts of your fridge model 106.53606201. |