{"product_id":"oem-goodman-10-wc-no-pressure-switch-for-gmh950703bxag-20197308","title":"OEM Goodman -.10\" WC NO Pressure Switch for GMH950703BXAG — 20197308","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20197308 Pressure Switch\u003c\/strong\u003e is a genuine OEM draft-proving control rated at \u003cstrong\u003e-.10 in. WC, normally open\u003c\/strong\u003e, for the \u003cstrong\u003eGMH950703BXAG\u003c\/strong\u003e two-stage gas furnace. It senses negative pressure created by the inducer\/draft motor and closes its contacts only when adequate venting airflow is confirmed — allowing the control board to proceed with ignition. This safety interlock prevents the furnace from firing with a blocked flue, failed inducer, or clogged condensate drain.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet point:\u003c\/strong\u003e -.10 in. WC (water column)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e Normally open (close on proven draft)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Verifies inducer\/venting airflow before ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMH950703BXAG and compatible furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e 20197308\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The exact -.10\" set point and normally-open configuration are matched to this furnace's inducer and vent design. Installing a switch with the wrong pressure rating causes hard lockouts or unsafe operation. For a combustion-safety control, use the genuine OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Moderate — two spade terminals and a single silicone hose to the inducer, but hose routing and the correct pressure rating are critical. Recommended for a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058115035507,"sku":"GOODMAN-11229","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-10-wc-no-pressure-switch-for-gmh950703bxag-20197308","provider":"National HVAC Parts","version":"1.0","type":"link"}