Lennox honeywell central AC making loud noise

BravesFan1June 23, 2012

Starting yesterday, my Lennox central AC unit is making a load noise (from the attic). So loud that it makes the the bedrooms upstairs shake. The outside unit makes a slightly abnormal noise. Anyone have recommendations on what to do?

Video of the noise from the attic:

http://youtu.be/atfRBU3YlgQ

Video of the noise from the outside unit:

http://youtu.be/AOc-PtrzFAQ

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