Lennox furnace fan c23-31-1 is coming on but no air is coming through the vents

sharonchilson Posts: 1, Reputation: 1

New Member

May 23, 2012, 07:07 PM

Lennox furnace fan c23-31-1 is coming on but no air is coming through the vents

The filter is clean, it was working fine this morning, what should I check before I call someone?

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