Hi, we just purchased an 5 year old GE profile refrigerator with full door/bottom freezer from a private party. It was working fine at his house. The refrigerator has a loud buzzing every 1/2 for a few seconds and then stops; it is working fine keeping cold. It does have an ice maker that I think has never been used or may not be complete, it does not have a handle to move. Thanks so much

The buzz is most likely coming from the water valve that feeds the ice maker. If the ice maker is not being used the buzz will continue unless the power is disconnected to the valve. It does not hurt anything but can be annoying.

If the ice maker does not have the shut off handle (arm) to lift then a solution would be to unplug the ice maker itself. If you look at the ice maker in the freezer it is usually held on by 3 screws to the side wall. If you remove these screws there will be a wire plug that you can unplug and remove the entire ice maker and free up room. With it disconnected the buzz will stop.