Lennox 74W72 Gas Manifold 320788-703 This S1-401449 is typically used

This S1-401449 is typically used for standard moisture and debris protection in clean systems or as a follow-up after the initial cleanup

5 to 5-ton systems

or a burnt-out motor winding

Enhanced Reliability: Features enclosed snap-action contacts and a dust cover

As a genuine Sterling HVAC part

Lennox 74W72 Gas Manifold 320788-703 This S1-401449 is typically usedThe 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