Replacement Motor, 120V

This replacement control board is engineered for Lennox single-stage furnaces and air handlers equipped with PSC blower motors in residential and light commercial HVAC heating applications. The Lennox 103085-03 ignition control board manages furnace operation with reliable electronic ignition control and integrated accessory management capabilities. The board operates within 18-30 VAC input voltage range (nominal 25 VAC, 50/60 Hz) with maximum input current capacity of 45A at 25 VAC. It includes integrated load control for humidifiers at 1.0 amp capacity (24 VAC or 120 VAC) and electronic air cleaner support at 1.0 amp (120 VAC). Flame detection utilizes a minimum 0.25 uA DC threshold with maximum non-detection leakage resistance of 100 Mohm, ensuring reliable burner monitoring and safety shutoff functionality. Built for demanding HVAC environments, this control board maintains operational performance across -40 Degrees F to 175 Degrees F temperature ranges with humidity tolerance from 5% to 93% relative humidity (non-condensing). Its compact design measures approximately 5.9in W x 4.95in H x 0.797in D, facilitating straightforward installation in standard furnace cabinets. Ideal for HVAC contractors, technicians, and facility maintenance professionals requiring reliable replacement control board solutions for Lennox furnace systems. Direct compatibility with Lennox 103085-03 specifications ensures proper system integration and performance restoration. This component is essential for furnace repair and retrofit applications where original equipment functionality must be maintained.