My dual 80 makes a whine like squeal on wind down. I thought it may have been the brushroll bearings, so I turned the be;t lifter off. This made the squeal louder. I don't know a lot about motors so I'm scared it may be the motor bearings. Although, one thing I noticed is the fan spindle has a little bit of play in it. I thought this may be the problem because in use, if the nozzle is lifted off the ground, I hear the squeal. I just hope its not motor bearings. Please, I am desperate to know what the problem is. Any information/advice is greatly appreciated!!!
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