Lennox 86G44 Motor 321142-301 check for a cracked internal

check for a cracked internal port on the Lennox 17F28 that might be bleeding vacuum

determined by looking at the discharge side (the side the air is blowing toward)

Key Benefits Compatible with a wide range of Modine unit heaters including the popular Hot Dawg series

specifically engineered to monitor induced draft blower performance

Key Benefits Dual-Function Electrode: Consolidates ignition spark and flame sensing into one Kanthal material electrode for a simplified flame rectification circuit

Lennox 86G44 Motor 321142-301 check for a cracked internalThe Lennox 86G44 Motor is a heavy duty, 460V 1 phase HVAC motor engineered for high static residential and light commercial air handling applications. This 1 2 HP 825 RPM blower motor is a direct OEM Lennox replacement part, ensuring critical mechanical alignment and electrical compatibility without the need for field modifications. Integrated within a NEMA 48 frame, the motor features a PSC (Permanent Split Capacitor) design that requires a 20 MFD