+1, I have yet to call in a professional for anything, and dreaded having to make the call as it wasn't something that could wait. Once inspecting the humidifier I realized it was an extremely simple unit and figured it couldn't be much, just didn't know where to start.
This is the awesome part of CR, I even had a guy on here come out to my old apartment like 3-4 years ago and check out my dryer for free,turns out it was like a $.60 part he had on his truck, but his willingness to help was just incredible. I tossed him some money for his time and everything, but I'm sure it was a LOT cheaper than a real service call would've been.