Maintenance Room

The Maintenance Room is a location in the Secret Mine in Luigi's Mansion Dark Moon. Located to the east of the Workshop Landing and right next door to the Workshop, the Maintenance Room has a backup generator that can be used to restore power to the area and let Luigi enter the door to the Workshop.

Inside the Maintenance Room is a large generator to the north, a conveyer belt running along the front of it and various objects like Robotic Bombs and crystals coming down said conveyer belt.

History
In D-3 Across The Chasm, Luigi has to make his way in here and use the Robotic Bombs to get rid of the ice on the generator and get it working again. Once this occurs, he finds he's snowed in the room and is brought out via the Pixelator.

In D-4 Chilly Ride, the Maintenance Room is inaccessible due to the heavy snowfall on the outside.

In D-Bonus Severe Infestation, the Maintenance Room can be entered from the Workshop Landing like before, but has nothing of interest.