Lennox 28G45 Limit switch 322838-754 controlled flame for igniting the

controlled flame for igniting the main burner

Whether transitioning between gas types or performing a routine HVAC orifice replacement

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

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

Lennox 28G45 Limit switch 322838-754 controlled flame for igniting theThe 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