{"product_id":"oem-goodman-0-60-wc-pressure-switch-no-for-gch90904cxaa-20197311","title":"OEM Goodman -0.60\" WC Pressure Switch (NO) for GCH90904CXAA — 20197311","description":"\u003ch3\u003eGoodman 20197311 Pressure Switch -.60\" WC (Normally Open)\u003c\/h3\u003e\u003cp\u003eThe Goodman 20197311 is a genuine OEM negative-pressure (draft-proving) switch calibrated to \u003cstrong\u003e-0.60 inches water column\u003c\/strong\u003e and wired \u003cstrong\u003enormally open\u003c\/strong\u003e, designed for the \u003cstrong\u003eGCH90904CXAA\u003c\/strong\u003e gas furnace. The switch confirms that the induced-draft blower is pulling proper venting airflow before the control board allows ignition. If it never closes, the furnace won't fire; if it fails closed, it defeats a critical combustion-safety interlock.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSetpoint: -0.60\" WC (water column)\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally open, single-stage\u003c\/li\u003e\n\u003cli\u003eFunction: Draft\/air-proving pressure switch\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GCH90904CXAA furnace\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20197311\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOEM vs. Generic\u003c\/h4\u003e\u003cp\u003ePressure-switch setpoints are model- and vent-configuration specific — a switch with the wrong \"WC\" rating will either nuisance-trip or fail to prove draft safely. The \u003cstrong\u003egenuine Goodman OEM 20197311\u003c\/strong\u003e is factory-set to -0.60\" WC, guaranteeing correct sequencing. For a combustion-safety component, always choose OEM.\u003c\/p\u003e\u003ch4\u003eInstallation Difficulty\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — usually one or two spade terminals, a single mounting screw, and a rubber sensing hose. Disconnect power first, and verify the hose is seated and free of condensate for reliable operation.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058054381939,"sku":"GOODMAN-9733","price":32.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-60-wc-pressure-switch-no-for-gch90904cxaa-20197311","provider":"National HVAC Parts","version":"1.0","type":"link"}