Thread: Air Noise from heater fan.
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Old 07-30-2023, 04:38 AM
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andrewwynn andrewwynn is offline
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Record the sound. I have had chirping at certain fan speed and since I run on auto it decides the fan speed (but wish displays it).

I'll just change the tempo up or down to get a speed without the chip.

It's definitely from the motor in my case maybe enough dirt on the squirrel cage to upset balance only a problem when it finds a harmonic.
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2011 E70 • N55 (me)
2012 E70 • N63 (wife)
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