I would look for screws mounting the fan assembly to the frame possibly. If there are screws there or anywhere else in the unit make sure they're snug...the rotary motion of the fan coupled with loose screws could be cause of the vibration.
Bill
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I would look for screws mounting the fan assembly to the frame possibly. If there are screws there or anywhere else in the unit make sure they're snug...the rotary motion of the fan coupled with loose screws could be cause of the vibration.
Bill
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