Description
ClimaTek Furnace Pressure Switch Replaces Lennox Armstrong Ducane 80W66 77W43
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.
Function:
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 Old Part #s:
80W66 77W43
Repair Difficulty Level:
