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and the operating differential (hysteresis)
signaling the board to run the fan for cooling
the 100166145 is the updated part number and is functionally identical to the PRS2044 pressure switch
including HK61EA008 and 1172478
Lennox 67M55 Blower Replacement Kit 319847-401 and the operating differential (hysteresis)For service calls involving failed furnace sequences, the Lennox 67M55 Induced Draft Blower Replacement Kit is the direct OEM solution for restoring safe combustion airflow. This combustion air inducer motor is a critical component for high efficiency Lennox gas furnaces, engineered to purge the heat exchanger of residual gases before the ignition cycle begins. Operating at a fixed 3000 RPM, this shaded pole motor generates the necessary negative