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Re: 'Whistling' Blower Motor Waveorm
Posted to Technical Theory Forum on 4/30/2018 3 Replies

If that is on hi, you are looking at the condition of the commutator segments. First off, the motor is running about half speed (from my experience, those blowers will see 18 to 22 segments in 20ms) and the commutator segments are crapped up and the bearings c... Login to read more.

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