Lennox 52M72 Flame Sensor Engineered as a normally closed

Engineered as a normally closed disc-style switch

The Lennox 32K70 is a precision-engineered Natural Gas Burner Orifice designed specifically for high-efficiency furnace burner assembly integration

This SPDT fan relay serves as the direct OEM replacement for B1217301

This Relay in a Box (RIB) features a single pole double throw (SPDT) configuration with a 10 Amp contact rating

this actuator crank arm provides a secure mechanical connection to 3/4 inch damper shafts

Lennox 52M72 Flame Sensor Engineered as a normally closedThe Lennox 52M72 Flame Sensor is a critical safety component designed for precise flame rectification in high efficiency gas furnaces. Engineered for direct spark ignition (DSI) and hot surface ignition (HSI) systems, this OEM replacement probe detects the presence of a burner flame by translating it into a microamp signal for the integrated furnace control. Built with high grade alumina ceramic insulation and a durable stainless steel electrode, it