It isn't a good idea to run vents anywhere near electrical components. It also isn't a good idea to have them near you gas meter, electric meter, or cable entry. Watch out for dryer vents as well, the chlorine from bleach that may not have been totally washed out makes the exhaust more toxic.
I ended up with a mouse in my central a/c this spring when I went to turn it on...luckily for me anyways, he electrocuted himself before he had a chance to sharpen his teeth on anything. Still had to clean up some things, but it worked.