Condensers Down

Condensers Down at (Location Name) is a radiant quest in the Fallout 4 add-on Far Harbor.

Quick walkthrough
Repair the Fog Condensers before the fog creatures overwhelm the settlement.

Detailed walkthrough
Upon arriving at one of the four obtainable allied settlements on the Island, a settler may inform the Sole Survivor that the settlement's fog condensers are broken and must be repaired immediately. The Sole Survivor can then agree to help them or turn them down.

When the quest starts a quest marker will appear showing the number of fog condensers that are yet to be fixed (this will also locate the damaged condensers on the Pip-Boy local map). The settler will then try to fix them, or the player character can elect to fix them themselves. Another quest marker will appear asking to defend the settlement. Since the fog condensers are down, the Fog will overwhelm the settlement, causing hordes of creatures and irradiated animals to continuously attack in waves. The creatures may consist of wolves, gulpers, yao guai, anglers and even fog crawlers at higher levels.

Enemies will almost continuously spawn until all fog condensers have been fixed. If at least one settler dies for any reason while this mission is active, the quest will fail. The quest ends once all the fog condensers are fixed and the enemies have stopped spawning.