excessive soot buildup on the cell face can "blind" the detector

ensuring exact physical fit and electrical connector alignment

Industrial-Grade Construction: Built with high-quality materials to withstand the thermal stress of continuous heating and cooling cycles

When should this wiring harness be replaced

making it suitable for a wide range of fractional and integral horsepower compressors

Lennox 74W72 Gas Manifold 318423-701 excessive soot buildup on theThe White Rodgers 50A55 843 is a universal integrated furnace control board designed to streamline service calls by replacing a vast range of silicon carbide ignition modules from White Rodgers and various OEMs like Carrier, Goodman, Lennox, and Trane. This hot surface ignition (HSI) controller utilizes a microprocessor to provide constant monitoring of the gas burner, inducer motor, and fan cycles. It features a replaceable 5 amp automotive style