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or a failure to open despite receiving 24VAC from the furnace control board
or an inability to sustain the second heating stage
this condensate management component handles the corrosive acidic runoff inherent in high-efficiency combustion without the premature warping or brittle failure seen in after-market alternatives
Designed for precision fuel regulation
preventing nuisance trips and ensuring safety switches communicate properly with the central control loop
Lennox 17W83 Service Valve 322838-753 or a failure to openThe Lennox 17W83 Service Valve is a 3 4" suction line service valve designed for demanding HVACR applications. As a direct OEM replacement for Lennox 10W33, this component ensures critical system integrity during maintenance and refrigerant recovery. It features a robust brass body with high grade internal seals to prevent refrigerant leaks at the suction line interface. When installing this HVAC service valve, technicians must verify the angle of the