Delivered 7/12/19 and started making groaning noises same day! in addition, around 1:30 this morning it started making whooping noises at about 5 second intervals for 5-10 minutes at a time ... thought it could be an animal of some kind but discovered it is the fridge! have listened to the suggested normal and abnormal sounds provided by LG but none match! any suggestions? probably won't make the noises if we call for service ... thanks for any help!