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Old 06-08-2011, 10:33 PM   #6
RayChez1
Senior Member
 
Join Date: Jun 2005
Posts: 1,257
Default Re: Roof Air Conditioner Noise

The air conditioner should not vibrate at all. It sounds to me like something might have come loose in the air conditioner itself.
I have the low profile Coleman air conditioner/heat pump combination. I have never felt any vibration at all on our units.
I don't think the duct would vibrate loose and cause the noise you describe.
Keep us posted on what the problem was, it might help somebody else that might have the same problem.
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