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Automatic Temperature Control: Integrated thermal sensor automatically activates the fan switch once the heat exchanger reaches operating temperature
Optimized Electrical Output: Consistently generates the 250-750mV range needed to hold in safety magnets and power millivolt gas valves
ensuring the motor does not exceed its rated current draw during pull-down
Diagnostic Interface: Built-in LED indicator provides instant visual confirmation of lockout status
It replaces legacy part numbers X13690251010 and 21C151619G01
Lennox 43W85 Blower Assembly 319848-301 Automatic Temperature Control: Integrated thermalThe Lennox 43W85 Blower Assembly (LB 94724M) is a critical OEM replacement combustion air blower designed for precision exhaust management in high efficiency gas furnaces. Engineered for the Lennox G60UH series and various residential HVAC units, this 1 30 HP draft inducer operates at 3000 RPM to facilitate the safe removal of flue gases while drawing in fresh combustion air. Featuring a shaded pole motor rated at 115V and 2 amps, this assembly