I have a sprinkler head with a cap on it in the ceiling of my bedroom (in a NYC condo). The ceiling has a slight vibration since we are on the top floor of our building with mechanical equipment on the roof. Every so often, this causes the sprinkler head to rattle, which makes it hard to sleep.

Anyone know what to do or what type of person to contact to fix the rattling? I’m worried to do anything myself for fear of setting off the sprinkler. Sometimes I can lightly touch it and that stops the rattling for a bit, but hoping for a longer term solution.