Hi, I just bought a high-end dual fan (VenMar C600M30ss) and if I select a speed past the 1st speed, the fan vibrates. I added two additional screws as suggested by a repair person and the vibration is still there.I think that the fan is not balanced properly; what do you think. I put in the amount of screws as per the instructions for dual fans and added two additional screws on the right side as suggested by the repair person.If you think you have a solution for me, it will be greatly appreciated since I want to return it.Regards,Rick Jodoinemail: rdjinrdjfo@hotmail.com
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