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Sooty, black plugs ???????
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08-10-2019, 07:49 AM
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john in illinois
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Join Date: May 2010
Location: Illinois
Posts: 2,184
Re: Sooty, black plugs ???????
Check to make sure your air filter in not restricting. Some of the small air cleaners do not flow enough air. You could check by removing filter and see if it helps.
John
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