GE Refrigerator Main Controller Board
The main controller board is the brains of the refrigerator so it can cause a number of issues if it is defective.
If your GE refrigerator is not cooling consistently but the lights inside work then it is likely a main controller board problem. Some customers complain that it’ll cool sporadically and some not at all. A few customers complain that their fridge cools but their freezer is no longer cold. Some hear a clicking sound in the back but some don’t. Others say they hear a “howling” sound from the rear. If you have an LCD panel then you might see the letters “HRS” flashing on it.
YouTube video: kenmore