Hi Noel, My name isXXXXX will assist you. This is sometimes the cooling temp alarm, or the door open alarm, also may be the ice maker.Try this please>
Open your freezer and inspect your ice maker. If the ice maker is in the process of making ice, wait for it to stop to see if the beeping noise stops as well.
Move the "On/Off" switch on the top of the ice maker to the "Off" position if the sound continues.Turn the "On/Off" switch back to the "On" position and see if the sound continues. Press the "On/Off" button on the left side of your refrigerator's temperature control panel if the sound continues.