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Discussion Starter #1
having this really odd electric noise coming from the fan when i turn it on and off and it last for a long time.
the fan also pulsates but its not extreme, so i guess the final stage resonator is gone.
could anyone tell me what the first noise might be and confirm the other one?
 

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Sounds almost like the fan bearings are going and the fan is rubbing against the sides of the housing. The pulsing could be the finally stage or get related to the fan going out.
 
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