air conditioner "buzz"

[anniem]

While vacationing, we tried to run our air conditioning and it sounded like there was something there that the fan was brushing against. We figured it might be a twig, so we turned it off, and when we got back home, climbed onto the roof and removed the housing, to find a HUGE hornet's nest. Luckily, the nest was already vacated but a few bodies and larvae remained, which we vacuumed up.
Not recommended. I had to take the vacuum apart and clean it.