When diagnosing a failed flow switch in hydronic heating or process cooling loops

Type: Thermopile generator for pilot-controlled gas valves

Full Seal Kit: Includes the SA25A-6 valve assembly and all necessary replacement gaskets for a leak-free installation

or diagnostic codes indicating a pressure switch error

Lennox 71W46 Drain Hose R-448A When diagnosing a failed flowThe Lennox 71W46 Drain Hose is a critical OEM replacement component engineered for high efficiency condensate management in residential HVAC systems. Constructed from durable, flexible vinyl, this 71 inch hose facilitates the seamless removal of moisture from the evaporator coil or furnace heat exchanger, preventing drain pan overflows and potential water damage to the mechanical closet or attic flooring. Designed specifically for professional grade