80W66 77W43 - ClimaTek Furnace Pressure Switch Replaces Lennox Armstrong Ducane
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Description
This is a new ClimaTek Furnace Pressure Switch Please note that this product may require the use of the previous mounting bracket during installation. It replaces the part numbers listed below.
An air switch is safety designed to ensure that your inducer motor is running at the proper RPM, and creating the proper vacuum for your furnace to flue safely.
Replaces:
80W66 77W43
Repair Difficulty Level
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