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Is it normal to hear a crackling sound coming from my electronic air cleaner?

April 26, 2017air cleaner coming crackling electronic hear normal sound

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Is it normal to hear a crackling sound coming from my electronic air cleaner?

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Yes. This is normal as long as the sound is not constant or repetitive. Occasionally, a large particle in the air stream will impinge on the electronic cells causing a high static discharge and consequent crackling sound.