Lennox 28G45 Limit switch 322838-754 the solenoid coil windings likely

the solenoid coil windings likely have an open circuit or internal short and require immediate replacement

Industrial Durability: Structural aluminum blades paired with a reinforced steel spider provide superior resistance to vibration and mechanical fatigue in condenser style applications

Durable Construction: The cast iron pillow block housing provides superior heat dissipation and resists deformation under belt-drive tension

controlled flame for igniting the main burner

Lennox 28G45 Limit switch 322838-754 the solenoid coil windings likelyThe Lennox 28G45 Limit Switch is a critical safety component designed for precise thermal regulation within residential and commercial Lennox HVAC systems. Engineered for automatic reset functionality, this high limit control monitors plenum temperatures, interrupting the burner circuit if conditions exceed the preset safety threshold of 140F. This OEM Lennox furnace part features a versatile 60F to 140F operating range, ensuring stable performance