It turned out something small and furry got into the freon container and ate some of our freon and chewed on the wires.
The rats are in their cages! I swear!
my friend was like "so you have radioactive squirrels scampering around?" And I replied, "I'm not sure how much freon you can eat and still scamper, but it seems possible..."
and now i am off to chinese for lunch. Mmmmm.