I have a constant, persisting, loud fan noise at the Red Rocket settlement just south of Sanctuary. The noise seems to be centered near the check out register in the main room (not the garage). It is very loud and noticeable and pretty much sounds like a vertibird stuck in the ground under the building but drops off pretty quick at about 30ft from the building.
Things I have tried:
-I toggled free camera and had a look around and found nothing half stuck in a wall or under the ground.
-I started deleted almost everything at the settlement to make sure it wasn't 2 pieces of furniture dry humping each other.
-There are no turrets or generators at this settlement (yet).
-Codsworth is at this settlement, however, the sound is not centered on him.
If anyone else has had this issue and fixed it, I would love to hear about it!