{"product_id":"oem-goodman-0-37-no-pressure-switch-for-gks90453bxaa-20197312","title":"OEM Goodman 0.37\" NO Pressure Switch for GKS90453BXAA — 20197312","description":"\u003ch2\u003eGoodman 20197312 Air Pressure Switch (-0.37\" WC, Normally Open)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGoodman 20197312\u003c\/strong\u003e is the genuine OEM air-proving pressure switch for the \u003cstrong\u003eGKS90453BXAA\u003c\/strong\u003e 90%+ AFUE gas furnace. This safety switch verifies that the inducer draft motor is moving combustion air before the control board allows ignition. It is a single-pole, \u003cstrong\u003enormally open\u003c\/strong\u003e switch that closes at a set point of \u003cstrong\u003e-0.37 inches of water column\u003c\/strong\u003e. If the switch fails to close — due to a bad switch, blocked flue, clogged condensate trap, or a cracked hose — the furnace locks out on a pressure-switch fault and will not fire, protecting the home from unsafe combustion.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 20197312\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet point:\u003c\/strong\u003e -0.37 in. WC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAction:\u003c\/strong\u003e Normally open (SPST, closes on negative pressure)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GKS90453BXAA and compatible GKS9 furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Combustion-air \/ draft proving safety\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePressure switches are calibrated to a specific set point — using a generic switch with the wrong pressure rating causes nuisance lockouts or, worse, defeats the safety interlock. The OEM 20197312 is factory-matched to the GKS90453BXAA inducer and flue design, so it proves draft at exactly the pressure Goodman engineered for.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eRated \u003cstrong\u003eEasy\u003c\/strong\u003e (2 of 5). Cut power to the furnace, photograph the wiring, transfer the two spade terminals and the sensing hose to the new switch, and mount with the original screws. Confirm the hose is clear and free of condensate. About 20–30 minutes. Follow all Goodman and local code requirements.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058085380467,"sku":"GOODMAN-10526","price":32.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-37-no-pressure-switch-for-gks90453bxaa-20197312","provider":"National HVAC Parts","version":"1.0","type":"link"}