Lennox Condensing Unit Contactor Replacement #10F73

This video provides step-by-step repair instructions for replacing the contactor on a Lennox A/C condensing unit. The most common reason for replacing the contactor is the central air conditioner does not cool or is not running at all.

All of the information for this contactor replacement video is applicable to the following brands: Lennox

Tools used: quarter inch socket
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How your central air conditioner works: