{"product_id":"oem-goodman-0-37-wc-pressure-switch-no-for-gks90905dxaa-20197312","title":"OEM Goodman -0.37\" WC Pressure Switch NO for GKS90905DXAA — 20197312","description":"\u003ch2\u003eGoodman 20197312 Pressure Switch (-0.37\" WC, Normally Open)\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e20197312\u003c\/strong\u003e air pressure switch is a factory-original draft-proving control for the \u003cstrong\u003eGKS90905DXAA\u003c\/strong\u003e gas furnace. It confirms that the inducer (draft) motor is pulling proper combustion airflow before the ignition sequence begins. If venting is blocked, the trap is clogged, or the inducer is weak, the switch stays open and the control board safely aborts ignition — a core safety interlock on every condensing furnace.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eActuation setpoint: -0.37\" WC (inches water column)\u003c\/li\u003e\n\u003cli\u003eContact configuration: Normally Open (NO), closes on negative pressure\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GKS90905DXAA and compatible 90%+ furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20197312\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana\u003c\/li\u003e\n\u003cli\u003eFunction: Proves inducer draft before burner ignition\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePressure switches are calibrated to a precise trip point, and the \u003cstrong\u003e-0.37\" WC\u003c\/strong\u003e rating on this \u003cstrong\u003egenuine Goodman OEM\u003c\/strong\u003e part is matched to your furnace's vent design. Installing a switch with the wrong setpoint causes chronic no-heat lockouts or, worse, allows the burner to fire with inadequate venting. Always match the exact setpoint and NO\/NC configuration — do not substitute.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e About 15 minutes. Cut power, photograph the wire terminals and hose connection, remove the mounting screws, and transfer the rubber pressure tube to the new switch in the same position. Inspect the tube and port for condensate or debris before restarting — a plugged hose mimics a failed switch.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDisconnect power before servicing. Verify the setpoint stamped on the switch matches -0.37\" WC.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058098356595,"sku":"GOODMAN-10847","price":32.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-37-wc-pressure-switch-no-for-gks90905dxaa-20197312","provider":"National HVAC Parts","version":"1.0","type":"link"}